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ETSTAT-ANP |grep Port numberRoot User executionNetstat-ntupln indicates that DNS is not queriedT represents the TCP protocolU means UDP protocolP indicates the program occupied by the queryL indicates that the query is listening on the programView that process takes up the XXX portLsof-i:xxxSee where the process of process number XXX isPs-ef|grep xxxPS-EF |grep Program NameNETSTAT-NLTP |grep

DHCP udp67/68DNS udp/tcp53Telnet TCP23HTTP TCP80HTTPS tcp/udp443Samba udp137/138 TCP139 TCP 445FTP TCP20/21SSH TCP22Note:The following ports are commonly used by proxy servers:(1). HTTP protocol Proxy Server common port number: 80/8080/3128/8081/9080(2). Socks Proxy Protocol Server common port number: 1080(3). FTP (Fil

The/*linux of the lower end of the port is maintained by the IANA (internetassignednumbersauthority, an internet-assigned numerical authority), and the port number is divided into 3 segments. 1, 0~1023, (10) These ports have IANA allocations and controls, and, if possible, the same port

Several ports (8005, 8080, 8009) required by Tomcat v8.0 Server at localhost are. The server may already is running in another process, or a system process may is using the port. To start this server you'll need to stop the other process or change the port number (s).I believe that we are all familiar with this paragraph of EnglishThis picture is also annoying. H

First, under the Liunx1. Find the PID for the specified target project (ATF Web Engineering) processPs-aux | grep ATFRoot 3582 0.1 11.2 382228 190588? Sl 09:31 0:19 Java-datf-jar Start.jar etc/jetty.xmlRoot 22121 0.0 0.0 1644 508 PTS/1 r+ 12:12 0:00 grep ATF2. Find information for the process number pid=3582 (the process number of the ATF project) in all portsNETSTAT-NAOP | grep 3582TCP6 0 0::: 8080:::* LIS

Executing npm run Dev is actually at the call of the root directory of the Package.jsonWhen you open Package.json, you can find a piece of code"Scripts": { "dev": "Node Build/dev-server.js", "Build": "Node Build/build.js", "lint": "Eslint--ext. js, . Vue src " } 　　We should look at the Dev-server.js file under the build directory.You can find it in the Dev-server.js file.The port here is what we're looking for, and in the beginning

Tags: sha comm name color app Gpo/usr Dev host1, the command lsof, to find occupy port 80 as an example, use the following:[Email protected] nginx]# lsof-i:The above is no process consuming 80 ports,[Email protected] sbin]# lsof-i:COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE namenginx 8246 root 6u IPv4 64233 0t0 TCP *: http (LISTEN) nginx 8247 Nobody 6u IPv4 64233 0t0 TCP *The above is an NGINX application with a p

As we all know, at any time multiple processes may use either of the 3 transport layer Protocols of TCP,UDP,SCTP, these 3 protocols use a 16-bit integer port number to differentiate these processes.When a customer wants to contact a server, it must identify the server that they want to communicate with. Tcp. UDP,SCTP defines a well-known set of port numbers to id

First, modify the listening port number in the/etc/httpd/conf/httpd.conf fileListen 80Change the 80 to the required number, such as 8000, i.e.Listen 8000Second, view the SELinux HTTP-related portsCheck if SELinux is enabled # sestatus-v |grep selinuxSELinux status:enabled #表示启用Check if Semanage installs # Rpm-qa |grep Policycoreutils-pythonIf not installed, pleas

Under Linux, if we need to know the port number No. 2809, we can do this, like the following command:$netstat-pan|grep 24800TCP 0 0 0.0.0.0:24800 0.0.0.0:* LISTEN 4496/synergysTCP 0 0 192.168.1.104:24800 192.168.1.106:49479 established 4496/synergysThe following are explanations of common parameters:NETSTAT [-A] [-b] [-e] [-n] [-O] [-P proto] [-r] [-S] [-v] [interval]-a displays all connections and listenin

　　Today to use Python to write a port detection applet to detect some specific service port is not occupied, suddenly found that they do not know how to query the Linux port is occupied, God, quickly learn.How Linux looks at ports1, Lsof-i: Port number is used to view the oc

Http://www.boofee.net/bigfee/read.php? 976Modify the Windows rras vpn pptp service default port number through the Registry The default port number used by the first-layer tunnel protocol PPtp of VPN (Virtual Private Network) is TCP 1723, which is a standard, that is to say, whether it is the VPN service provided by Mi

Number of Windows Scan Port links batch Because we have a problem with the disconnected development of a program here, there are often thousands of links in the established state, but in fact these links should have been disconnected, when the link piled up to a certain extent, the server can not access the situation. That's why the following script was generated. The purpose of the script is to make a st

it causes the TCP protocol to not meet the requirements of a reliable connection. Therefore, the client is not directly into the closed, but to maintain the time_wait, when again received fin, can ensure that the other side received an ACK, and finally close the connection correctly.Besides, 2nd, if the client closed directly and then initiates a new connection to the server, we cannot guarantee that the new connection will be different from the port

Common commands for Linux firewalls1. Permanent effect, no recovery after rebootOpen: Chkconfigiptables onOFF: Chkconfigiptables off2. Immediate effect, recovery after restartRestarting the firewallWay One:/etc/init.d/iptables restartMode two: Service iptables restartTo turn off the firewall:Mode one:/etc/init.d/iptables stopMode two: Service iptables stopStart the firewallMode one:/etc/init.d/iptables startMode two: Service iptables startOpen related interfaces1. Locate the firewall configurati

There was a problem before that you wanted to be able to reuse the port number of UDP, but it didn't work. Today happened to see a piece of code, unexpectedly can achieve the purpose, the Joy of note: IPAddress groupAddress = IPAddress.Parse( "239.0.84.11" ); Socket Listener = new Socket( AddressFamily.InterNetwork,SocketType.Dgram, ProtocolType.Udp ); Listener.SetSocketOption( SocketOptionLevel.Socket,