Netstat Listening Ports Windows

default instructs Nessus to scan approximately 4,790 commonly used ports. This guide shows you how to view a list of all the listening UDP ports on a Windows machine. How do you test to see if on a computer running Windows 2K has certain ports open for UDP? Netstat -a for all UDP ports returns *:*. This article explains about – Top 10 Netstat Command Examples on Linux. This is a list of TCP and UDP port numbers used by protocols of the Internet protocol suite for operation of network applications. The name of the local computer that corresponds to the IP address and the name of the port is shown unless the -n parameter is specified. Use netstat -ano This will add a "Process ID" column on the far right. List process by port number. Task 3: Reflection. How to check which process is listening on which port Posted on 2012-08-30 by Spider Here’s a few built-in commands and how to guide that can help users to find out and identify which application or process that is already using, opening and listening on port 80 or 443 on the Winodws operating system such as Windows Vista, Windows XP, Windows. -a: Displays all connections and listening ports. It will not be used with 'a' as it prints all ports, $ netstat -l. This tool is very important and much useful for Linux network administrators as well as system administrators to monitor and troubleshoot their network related problems and determine network traffic. Process information is now also displayed under Windows NT. #Requires -RunAsAdministrator <#. Still no effect. The LDAP protocol is normally listened for on port 389. I can see the port myApp. If you see c:\windows\system32\svchost. Netstat command displays various network related information such as network connections, routing tables, interface statistics, masquerade connections, multicast memberships etc. Either situation is likely to be a problem in the way application was implemented and some adjustment is required in fixing the application code (socket programming). Netstat est un outil permettant de connaître les connexions TCP actives sur la machine sur laquelle la commande est activée et ainsi lister l'ensemble des ports TCP et UDP ouverts sur l'ordinateur. In this case the executable name is in [] at the bottom, on top is the component it called,. 1 and 10 Note : These steps are for the Windows Firewall and not the Mozy Program. when I run this command netstat -a -p tcp I had no port 3389 or 3390 ( manual change) was showing in the list. exe, located in the Windows 'System32' folder, allows you to view ports that are open or in use on a particular host, but should not be confused with a network port scanner which actually probes a host for open ports. The connection details to consider during basic network daemon troubleshooting are the addresses that the daemon is listening on (including the port number), the daemon’s process identifier (PID), and the program name. I personally like using (C:\Windows\Netstat -an) Which Displays all connections and listening ports in the form of IP instead of Hostname. The data is presented in four columns – Proto , Local Address , Foreign Address , and Status. RDP not listening for connections If it's not showing up in NetStat then nothing is opening up the port in the first place and the Op did say that as this is an. 60 of the software, select the relevant session, then click on SSH , then tunnels. Netstat – A command to display Network Statistics. no listening sockets available, shutting down. It doesn't say if it is listening. The - l option (on Linux) will list only the listening ports for that system. This indicates another application is using this port. Windows 7 machines, VDA 7. Windows 7 All-in-One For Dummies. It's probably IPsec Key Management running as a system service on port 500 UDP (both IPv4 and IPv6). -n Displays addresses and port numbers in numerical form. This command is very useful as it allows you to see if you are out of dynamic ports (ephemeral ports) and running into port exhaustion issues. exe Netstat Command (Linux) , um guia de utilização do netstat no Linux. List All Listening Ports. …I never run netstat by itself. …Moving from left to right, it shows the protocol in use,…the local IP on the connection,…then a colon and a local port in use,…the remote host and remote port,…and finally, the state of the connection. netstat -a You can also use the netstat -an command to get faster results as netstat -a would take longer time in the name resolution of the remote foreign address. This immediately brings up a list of processes and their. From time to time we need to view "UDP" ports that are in a listening state on Windows. Some examples of questions this might answer include:. If it's listed in that table, the port is bound to an application. On the Remote Desktop server, click Start, click Run, type cmd, and then click OK. -a: Displays all connections and listening ports. 5355 and 5353 might be DNScache 57427 might be FDResPub, which is a Windows OS DLL, that advertises the computer and its resources to the network. The most common iteration of netstat is to use the -a parameter, which displays all connections and listening ports. If you want to free up the port, you have to figure out which program occupies it. View Network Status and Listening Ports on Windows with Netstat There are plenty of times when you may need to know which applications are running on which ports on your machine. You can check the listening ports and applications with netstat as follows. Being in IT for almost 8 years, I quickly learned that the netstat command in Windows can be of great benefit if you know how to use it! Even though I don't work in IT anymore, that command still comes in handy a lot of times. That is all. Entering the NETSTAT command with the -A switch causes the program to display all connections and listening ports. All computers and lans listen that's what they do and how services like the browser function. Hey, Scripting Guy! I need a good way to parse output from the NetStat command. exe (a Windows system file) and firefox. Netstat adalah salah satu layanan jaringan alat debugging yang paling dasar, memberitahu kepada anda port apa saja yang terbuka dan apakah ada program yang terhubung dengan port. Netstat is a powerful command used to check whether your workstation is under attack. Security Now #49 - The NETSTAT Command , guia podcast para netstat da Security Now!. Netstat Listening ports??!? - posted in Networking: Hello everyone, nice to be a part of this forum. Netstat is an extremely powerful tool that can be used to view the network connection information on a machine. Step by step guide to open firewall ports on Windows Server 2008 R2 Enterprise edition, as below: // To do so, Click on Start button, then click on Administrative Tools, then click on Windows Firewall With Advanced Security as below:. While trying to install Webmin , my favorite web-based interface for system administration for Linux, I recently ran into a conflict. If you want to see what (TCP) ports your machine is listening on, use netstat --tcp --listening. Port numbers are used to determine what protocol incoming traffic should be directed to. To start the program, you can click on the Windows Start button and type resmon or resmon. Consider some information might not be accurate anymore. NETSTAT [-a] [-e] [-n] [-s] [-p proto] [-r] [interval] -a Displays all connections and listening ports. exe tool that ships with Windows, GUI-based netstat programs are available. In Windows PowerShell 3. connectport – is a TCP port to which the connection from listenport is forwarded to. Yes, we are talking about the Netstat command. Apart from connected sockets it can also list listening sockets that are waiting for incoming connections. Being in IT for almost 8 years, I quickly learned that the netstat command in Windows can be of great benefit if you know how to use it! Even though I don't work in IT anymore, that command still comes in handy a lot of times. listening port. The first lists active ports along with the name of the process that's using them. netstat -a | find “LISTENING” or to get a listing of the open ports and associated. The -ab parameter will give you the name of the executable of the service, while the -ao parameter will give you the process ID of the service. Netstat is a command which is very useful for network statistics, we can view all open network ports of the system weather it is in Listening or Established mode. You can use the Remote Desktop feature in Microsoft Windows XP Professional to connect to your computer from another remote computer. To find out the port on which a process is listening, you could run pfiles command with PID and grep port. Dengan mengenal dan memakainya, maka dapat dipakai sebagai suatu “alat penjaga sederhana”. Either situation is likely to be a problem in the way application was implemented and some adjustment is required in fixing the application code (socket programming). List the statistics for all ports. exe runs on Windows 2000-based computers. Get-NetStat. But I'm struggling to get any useful information out of it. -r [target host] is the our targeted system’s IP or hostname. More Ports If all or most of the connections shown in "netstat" or "TcpView" are "Established" or "Listening", you may need to increase the total number of connections available to your clients. To find out if you have any open ports (all PCs do to some extent), you can do a 'netstat -na' and look for any lines that have the word. -b Displays the executable. The - l option (on Linux) will list only the listening ports for that system. 1 day ago · $ netstat -a | more. -b This netstat switch is very similar to the -o switch listed below, but instead of displaying the PID, will display the process's actual file name. exe command-line program. You will get to see a line similar to below in Windows OS: UDP - 0. 0, and I parsed the output by using regular expressions. The key to understanding what programs are listening for incoming connections and actively communicating on your Windows machines is the netstat. The result from this code snip will return a list of “Port” objects which contain process names, port number and protocol as properties. …I never run netstat by itself. –> Netstat Listening: Connection is waiting for a reply from the foreign host. This is a list of TCP and UDP port numbers used by protocols of the Internet protocol suite for operation of network applications. How do you test to see if on a computer running Windows 2K has certain ports open for UDP? Netstat -a for all UDP ports returns *:*. To use the netstat utility on a computer running Windows 95/98/NT/2000, open a DOS window. The netstat command just lists objects that are listening. The netstat utility displays incoming and outgoing network connections (TCP and UDP), host computer routing table information, and interface statistics. How to find what application is listening on a TCP/IP port in windows using netstat? Uncategorized on May 31, 2016 Whenever an application wants to make itself accessible over the network, it claims a TCP/IP port, which means that port can't be used by anything else. netstat -a -b -o. From a troubleshooting perspective, there may be. In this short post we will see how to do this with the netstat command. All ports are associated with a process ID or service in an OS. This is a video on the netstat command available on many Microsoft Windows operating systems. How To Use Netstat Commands To Monitor Network On Windows Using CMD. The last part means that netstat didn’t include a list of any servers running on your machine; in other words, it didn’t list those programs which are waiting for TCP connections but currently have none established. Using netstat. These are the open ports. Best Answer: The first few ports are microsft windows related system processes. Netstat (network statistics) is a command-line tool that displays network connections (both incoming and outgoing), routing tables, and a number of network interface statistics. The standard netstat version of Microsoft is slightly more limited than its Linux counterparts, but still gets the job done as follows. This output is similar to that of the Get-NetTCPConnection cmdlet of the NetTCPIP PowerShell module. I have a problem. Microsoft Windows also offers a netstat command that can be executed from the command line to get a list of open ports. netstat is command line network tool which is handy troubleshooting command. You can also use netstat command line on your server to find a open port. Use the -ao with netstat command to show all connections and listening ports in numeric form. Repeat steps 1 through 9 for each port to open. netstat -bno Since standard Windows command line tools can easily interact with PowerShell cmdlets I thought I would try some grep style string filtering. -a Displays all connections and listening ports. Generally, this number is the same. Wintips&Tricks April 20, 2004 - Issue 4 Netstat - An Introduction With Netstat, which is a network command available in all versions of Windows from 98 to XP, you can view who is connected to your computer, IP addresses, and what ports are open on your computer. cnf to 3307, it appears as listening when I run netstat -a | grep 3307 But when it is changed back to 3306 there is no port listening. For example, a website with mixed content may be serving content over both HTTP (80) and HTTPS (443). I try with netstat -ab -p tcp -n and among the results get: TCP 0. Linux Command – Using Netstat the Proper Way !! Listing all the LISTENING Ports of TCP and UDP connections Listing all active UNIX listening ports using. There are three ways you can go about monitoring the connections that your computer makes to the Internet: via the command prompt, using Resource Monitor or via third-party programs. To view network connections, listening ports and so on, netstat is one of the best utility which is available for both Windows and Linux OS. “Of course it runs NetBSD”. This should output number of ports in that particular state. How To Use Netstat Commands To Monitor Network On Windows Using CMD. exe should be the only process using port 10000 and the state of the port should say LISTENING in the netstat log. You can also use netstat command line on your server to find a open port. View all listening UDP ports on Windows: Open the command prompt. Get-NetTCPConnection. Piping it to find effectively filters the results and /c performs a count. The netstat command just lists objects that are listening. Entering the NETSTAT command with the -A switch causes the program to display all connections and listening ports. Điều này sẽ giúp bạn xử lý sự cố mạng bằng lệnh NETSTAT là cần thiết vô cùng. 6 -p tcp -o 21,110,143. Step 3: The netstat command displays the Active Connections on your system. The Netstat utility allows us to be able to go in and look at both the ports that are listening on our computer, and can be valuable for security issues to find connections that have either been established inbound or outbound with our machine. How do you test to see if on a computer running Windows 2K has certain ports open for UDP? Netstat -a for all UDP ports returns *:*. -b: Displays the executable involved in creating each connection or listening port. Summary: Ed Wilson, Microsoft Scripting Guy, talks about parsing output from NetStat with Windows PowerShell 5. 60 of the software, select the relevant session, then click on SSH , then tunnels. I'm trying to figure out why netstat fails to show all of the services that are running on a server as opposed to nmap. It is available on Unix, Unix-like, and Windows NT-based operating systems. As what I know, netstat is the command to use. Học cách sử dụng lệnh NETSTAT trên Windows nhằm quản lý các kết nối mạng. By default, Netstat translates common port numbers into the protocol typically associated with them (e. I am having windows 10 system 1903 updated with latest patches & I am trying to understand the netstat output of my system I am trying to block the port 135, 139 & 445 from my local windows firewall I have create inbound and outbound rule to block those ports, still on the netstat it shows following:. You will need to look while the port is in use to determine what is opening the port. This is useful for knowing if a service is listening on a specific port. That is, a port can only be used by one program at a time. On the Remote Desktop server, click Start, click Run, type cmd, and then click OK. Netstat can be used to quickly find if a particular port is in use. In some cases well-known executables host multiple independent components, and in these cases the sequence of components involved in creating the connection or listening port is displayed. listenport – local listening TCP port (the connection is waited on it). 0" means that it is listening on all interfaces with an IPv4 address. Netstat Command. Skype actually doesn’t have to use port 80, it can use other port numbers — but for some reason, it just does. 1003971, For troubleshooting purposes, it may be necessary to check if a port is already in use by a different application on your servers. The -ab parameter will give you the name of the executable of the service, while the -ao parameter will give you the process ID of the service. This post demonstrates how. The listening state sockets are included in the output only if you specify the --listening (-l) or --all (-a) option. And not only windows uses this tool, Linux system use this tool also. You should pay more attention to the program names that are listening on the Internet rather than the ports sometimes. Localhost connections still work. That is all. How to find out which process is listening on a port when netstat fails you Sometimes I just bang my head on the wall. netstat doesn't show port listening Forum: Help. After a brief introduction to TCP/IP ports we'll look at netstat. TCP/IP関連のトラブルシューティングでは定番といえるWindows OS標準の「netstat」コマンド。主にTCPの通信状態を調査するコマンドであり、通信の. I'm running windows server 2012. Linux Netstat Command With Examples. I have this same problem, Windows 10 was not listening on port 445, network device is an OpenVPN Tap. The netstat utility can be used to see a current list of all listening ports and active connections. tcp/ip port 3306 connection from windows ? View as plain text Hi: i am a new user for linux and mysql about one month. To set a filter right click on Application and select Filter Current Log. Run with no parameters, netstat will simply display a list of active connections on the local system. I would like to check at a glance all ports where any service is being offered by a given unit. Netstat, listening ports, and the loopback address Say you have a Windows server, and people are trying to communicate on certain ports (say, 1234 and 1235). 1 (but no other addresses, and external machines can't get to it). How can you find out which process is listening on a port on Windows? You can now cross check by typing netstat command. Windows processes listening on a port. That’s the security price you pay for enabling programs to talk to each other. When a port is listening, that means that the server program has the port. As it is built in, there is nothing to download. Linux netstat can show masqueraded connections using “-m”, while Mac employs the same option to show memory management statistics. The command line parameter -A adds all listening ports (both TCP and UDP) and any other TCP pseudo-connections. Final remarks Those were the three netstat functionalities the three platforms have in common, but there is more. How to check which process is listening on which port Posted on 2012-08-30 by Spider Here’s a few built-in commands and how to guide that can help users to find out and identify which application or process that is already using, opening and listening on port 80 or 443 on the Winodws operating system such as Windows Vista, Windows XP, Windows. 0" means that it is listening on all interfaces with an IPv4 address. Hey, Scripting Guy! I need a good way to parse output from the NetStat command. And not only windows uses this tool, Linux system use this tool also. In the External port and Internal port boxes, type the port number. Using The Netstat command to find port information¶. can't connect: WSAETIMEDOUT and netstat reports server only has TIME_WAIT and no LISTENING state - posted in Administration: I've had a p4 server running successfully for several months. The key to understanding what programs are listening for incoming connections and actively communicating on your Windows machines is the netstat. monitor listening ports-a. Since Windows XP, findstr was introduced. netstat is one of the most basic network service debugging tools, telling you what ports are open and whether any programs are listening on ports. Some switches are only in certain Windows versions, as noted in the table. The –n means to list numbers. netstat not showing OpenVPN listening on port 1194. At the command prompt, type netstat -a -o and then press ENTER. It does show Local Address 0. To view network connections, listening ports and so on, netstat is one of the best utility which is available for both Windows and Linux OS. exe is listening on port 25 & EdgeTransport. exe tool that ships with Windows, GUI-based netstat programs are available. Is Windows "listening to itself" (address 127. Netstat is a command that some Windows Server admins which displays all connections and listening ports. The utility reports the port status of TCP and UDP ports on a computer you choose. The ?a indicates that we want all connections and listening ports. This is causing a problem when we try to connect from other machines by using the following: telnet 3306 Even when the port is changed to 3307, I am not able to connect. skype and XAMPP Port conflict is the main example for that. Enter the port number which you want to test and click on start; In above example, I have started listening port on 5500, and it's time to validate if it's running. $ netstat -an. default instructs Nessus to scan approximately 4,790 commonly used ports. * -v Verbose. Port already in use when installing VMware vCenter Server. (may be combined with -s) -n Display addresses and port numbers in Numerical form. In this short post we will see how to do this with the netstat command. The command line parameter -A adds all listening ports (both TCP and UDP) and any other TCP pseudo-connections. You’ll see MSExchangeFrontEndTransport. This is the most convenient method to find port status, there are two ways to open this GUI : Type resmon in command prompt then naviagate to Network > Listening Ports. Điều này sẽ giúp bạn xử lý sự cố mạng bằng lệnh NETSTAT là cần thiết vô cùng. To view all the connections and listening ports on your computer open up a cmd window by going to start then run and typing cmd and then clicking ok. You do a netstat and you see 1234 listening on 0. Today I tried to install nginx on Windows Server 2008 R2 being currently used as DC and print server. and it work ok. View Network Status and Listening Ports on Windows with Netstat There are plenty of times when you may need to know which applications are running on which ports on your machine. Check the screenshot below:. Remote computers connect to port 135 first, discover which port the actual service they want is listening on, then reconnect to the other port (such as 49664). In Windows, use the netstat. This video tutorial presents a basic introduction to working with the netstat tool. Netstat command in Windows is a good start to check or start troubleshooting and using Netstat parameters, will be able to check ports that are open and which application is using the port. To view which ports are listening (open) on a local host using netstat, from the command prompt type the following. (Note: On Vista Machines your Run option is hidden by default and you will have to launch the command prompt in the start menu. -l,--listening Show only listening sockets. This video tutorial presents a basic introduction to working with the netstat tool. On the Windows platform, netstat information can be retrieved by calling the GetTcpTable and GetUdpTable functions in the IP Helper API, or IPHLPAPI. To list this information you can use the following command (which is pretty easy to memorize for Germans 🌷):. Ports are used in the TCP [RFC793] to name the ends of logical connections which carry long term conversations. exe utility. Steps for Windows 8, 8. netstat is command line network tool which is handy troubleshooting command. 윈도우 열린 포트 확인 윈도우 리스닝 포트 확인 윈도우 netstat -an. It is most often used in conjunction with a traditional LAMP stack (Linux, Apache, MySQL, PHP), and can be used to filter traffic on HTTP, FTP, and HTTPS, and increase the speed (thus lower the response time) for a web server via caching. Using the parameter -l (or --listening) it will show only listening sockets/ports (which are omitted by default. The easiest way to make sure you’re not infected is to open a command prompt and use a tool named Netstat (the abridged form of Network Statistics) to see all the active and listening ports on your system. Windows Server 2012. On Mac, “netstat -iw 1”. Is there a way to examine the status of a specific port from the Windows command line? I know I can use netstat to examine all ports but netstat is slow and looking at a specific port probably isn't. List the statistics for all ports. If the port is not yet established, the port number is shown as an asterisk (*). thanks everyone !. To also see listening ports, run Netstat with the -a switch. Port Listener is a free lightweight utility to listen on the specified port. This indicates another application is using this port. The command line parameter -A adds all listening ports (both TCP and UDP) and any other TCP pseudo-connections. You should pay more attention to the program names that are listening on the Internet rather than the ports sometimes. The process 1124 is listening on port 12345. cnf to 3307, it appears as listening when I run netstat -a | grep 3307 But when it is changed back to 3306 there is no port listening. You do a netstat and you see 1234 listening on 0. exe to confirm that the MSDTC service is listening on that configured server port. -a Displays all connections and listening ports. The netstat. Once PID is determined, one can refer to "Windows Task Manager" to determine which application corresponds to the PID. Thanks in advance. How to Close Port 445 in Windows 10/7/XP? Since it is one of the most dangerous ports on the Internet and made way for WannaCry attack, close it becomes urgent. The following diagram is a slight modification from the Port Summary for Single Consolidated Edge documentation in TechNet. Netstat is a powerful command used to check whether your workstation is under attack. To find out if you have any open ports (all PCs do to some extent), you can do a 'netstat -na' and look for any lines that have the word. List the statistics for all ports. This guide shows you how to view a list of all the listening TCP ports on a Windows machine. Get-NetStat. exe" on "TermService". Port Listener is a free lightweight utility to listen on the specified port. Conversely, while the GUI approach will not be examined further,. But that is a different post. There are three methods to disable port 445 in Windows 10, 7 and XP in total. To use the netstat utility on a computer running Windows 95/98/NT/2000, open a DOS window. Sebagai pengguna internet, sudah seharusnya kita tahu tentang bagaimana cara memakai netstat. Netstat will display network statistics. The same applies to the Master Image, which is a Windows 10 virtual machine. Look for an entry for TCP port 3389 (or the assigned RDP port) with a status of Listening. To view which ports are listening (open) on a local host using netstat, from the command prompt type the following. 04: 1 - Show all listening and non-listening sockets of TCP, UDP, and UNIX socket connections, routing table entries, and network. System Requirements This utility works perfectly under Windows NT, Windows 2000, Windows XP, Windows Server 2003, Windows Server 2008, Windows Vista, Windows 7, Windows 8, and Windows 10. Use netstat -ano This will add a "Process ID" column on the far right. From time to time we need to view "UDP" ports that are in a listening state on Windows. Linux netstat can show masqueraded connections using “-m”, while Mac employs the same option to show memory management statistics. Netstat is a classic tool available in almost all operating systems and can display the listening ports as well as the state of TCP sessions. I personally use Netstat to monitor what ports my computer is listening on, as well as find out what remote computers my machine is talking to. Additionally, you can type a custom range of ports by using a comma-delimited list of ports or port ranges. How to find what application is listening on a TCP/IP port in windows using netstat? Uncategorized on May 31, 2016 Whenever an application wants to make itself accessible over the network, it claims a TCP/IP port, which means that port can't be used by anything else. The process might be transient and have disappeared from the /proc hierarchy preventing netstat to identify it. Using netstat. RE: Can netstat filter specific ports ? SimonDavies (MIS) 9 Aug 05 08:31 My guess is that you would need to have a look at running some kind of CGI script but that can be trouble as it would also mean others can run scripts if you don't control it neatly. I try with netstat -ab -p tcp -n and among the results get: TCP 0. listenport – local listening TCP port (the connection is waited on it). You'll see port 3389 bound to "svchost. Using Windows command line is sometimes challenging. netstat -lt Find the port used by a program. exe is a basic command that can provide some very useful. In the Windows example, we find out that process with PID 3696 is the one binding the relevant port (8080). Run the Command Prompt as Administrator. The reason that I bring this up today is because of a Twitter conversation from today regarding SSH access and VMkernel interfaces. From time to time we need to view "UDP" ports that are in a listening state on Windows. Again, the port number is the number after the colon. Unix, Windows, and other operating systems vary in the handling of port 0, but the same general convention applies. Here's a few built-in commands and how to guide that can help users to find out and identify which application or process that is already using, opening and listening on port 80 or 443 on the Winodws operating system such as Windows Vista, Windows XP, Windows 7, Windows Server 2003 and 2008. In addition to the command-line netstat. But also Unix domain sockets will be printed in the end of the list after TCP and UDP ports. Looks very useful! -a Displays all connections and listening ports. This will show information about current network connections and listening ports, as well as associated executables and processes. Note: This plugin will run on Windows (using netstat. 0 (and external machines can get to it) but 1235 listening on 127. Existeixen versions d'aquesta ordre en diferents sistemes com ara Unix/Linux, Mac OS X, Windows i BeOS. Installing netstat on Debian 9 Stretch: netstat command is a part of the net-tools utility package on Debian 9 Stretch. That's indicative of various services using the ports you noted most likely (and the netstat commandline will indicate which ones, specifically as to the ports they are using as ephemerals in client-server type work, or as reserved ports)!. It is very useful in terms of network troubleshooting and performance measurement. If y try "netstat -an | grep 3306" nothing MySQL is running fine whit my local PHP script but not with some java application that need port 3306 to listen to gain acces to database. The Netstat utility allows us to be able to go in and look at both the ports that are listening on our computer, and can be valuable for security issues to find connections that have either been established inbound or outbound with our machine. If it's listed in that table, the port is bound to an application. Học cách sử dụng lệnh NETSTAT trên Windows nhằm quản lý các kết nối mạng. -p,--program Show the PID and name of the program to which each socket belongs. The fact-checkers, whose work is more and more important for those who prefer facts over lies, police the line between fact and falsehood on a day-to-day basis, and do a great job. Today, my small contribution is to pass along a very good overview that reflects on one of Trump’s favorite overarching falsehoods. Namely: Trump describes an America in which everything was going down the tubes under  Obama, which is why we needed Trump to make America great again. And he claims that this project has come to fruition, with America setting records for prosperity under his leadership and guidance. “Obama bad; Trump good” is pretty much his analysis in all areas and measurement of U.S. activity, especially economically. Even if this were true, it would reflect poorly on Trump’s character, but it has the added problem of being false, a big lie made up of many small ones. Personally, I don’t assume that all economic measurements directly reflect the leadership of whoever occupies the Oval Office, nor am I smart enough to figure out what causes what in the economy. But the idea that presidents get the credit or the blame for the economy during their tenure is a political fact of life. Trump, in his adorable, immodest mendacity, not only claims credit for everything good that happens in the economy, but tells people, literally and specifically, that they have to vote for him even if they hate him, because without his guidance, their 401(k) accounts “will go down the tubes.” That would be offensive even if it were true, but it is utterly false. The stock market has been on a 10-year run of steady gains that began in 2009, the year Barack Obama was inaugurated. But why would anyone care about that? It’s only an unarguable, stubborn fact. Still, speaking of facts, there are so many measurements and indicators of how the economy is doing, that those not committed to an honest investigation can find evidence for whatever they want to believe. Trump and his most committed followers want to believe that everything was terrible under Barack Obama and great under Trump. That’s baloney. Anyone who believes that believes something false. And a series of charts and graphs published Monday in the Washington Post and explained by Economics Correspondent Heather Long provides the data that tells the tale. The details are complicated. Click through to the link above and you’ll learn much. But the overview is pretty simply this: The U.S. economy had a major meltdown in the last year of the George W. Bush presidency. Again, I’m not smart enough to know how much of this was Bush’s “fault.” But he had been in office for six years when the trouble started. So, if it’s ever reasonable to hold a president accountable for the performance of the economy, the timeline is bad for Bush. GDP growth went negative. Job growth fell sharply and then went negative. Median household income shrank. The Dow Jones Industrial Average dropped by more than 5,000 points! U.S. manufacturing output plunged, as did average home values, as did average hourly wages, as did measures of consumer confidence and most other indicators of economic health. (Backup for that is contained in the Post piece I linked to above.) Barack Obama inherited that mess of falling numbers, which continued during his first year in office, 2009, as he put in place policies designed to turn it around. By 2010, Obama’s second year, pretty much all of the negative numbers had turned positive. By the time Obama was up for reelection in 2012, all of them were headed in the right direction, which is certainly among the reasons voters gave him a second term by a solid (not landslide) margin. Basically, all of those good numbers continued throughout the second Obama term. The U.S. GDP, probably the single best measure of how the economy is doing, grew by 2.9 percent in 2015, which was Obama’s seventh year in office and was the best GDP growth number since before the crash of the late Bush years. GDP growth slowed to 1.6 percent in 2016, which may have been among the indicators that supported Trump’s campaign-year argument that everything was going to hell and only he could fix it. During the first year of Trump, GDP growth grew to 2.4 percent, which is decent but not great and anyway, a reasonable person would acknowledge that — to the degree that economic performance is to the credit or blame of the president — the performance in the first year of a new president is a mixture of the old and new policies. In Trump’s second year, 2018, the GDP grew 2.9 percent, equaling Obama’s best year, and so far in 2019, the growth rate has fallen to 2.1 percent, a mediocre number and a decline for which Trump presumably accepts no responsibility and blames either Nancy Pelosi, Ilhan Omar or, if he can swing it, Barack Obama. I suppose it’s natural for a president to want to take credit for everything good that happens on his (or someday her) watch, but not the blame for anything bad. Trump is more blatant about this than most. If we judge by his bad but remarkably steady approval ratings (today, according to the average maintained by 538.com, it’s 41.9 approval/ 53.7 disapproval) the pretty-good economy is not winning him new supporters, nor is his constant exaggeration of his accomplishments costing him many old ones). I already offered it above, but the full Washington Post workup of these numbers, and commentary/explanation by economics correspondent Heather Long, are here. On a related matter, if you care about what used to be called fiscal conservatism, which is the belief that federal debt and deficit matter, here’s a New York Times analysis, based on Congressional Budget Office data, suggesting that the annual budget deficit (that’s the amount the government borrows every year reflecting that amount by which federal spending exceeds revenues) which fell steadily during the Obama years, from a peak of $1.4 trillion at the beginning of the Obama administration, to $585 billion in 2016 (Obama’s last year in office), will be back up to $960 billion this fiscal year, and back over $1 trillion in 2020. (Here’s the New York Times piece detailing those numbers.) Trump is currently floating various tax cuts for the rich and the poor that will presumably worsen those projections, if passed. As the Times piece reported: