Often encounter situations usually occupied by the port, we do not know which port is enabled services.
In this paper, 80-port, for example.
1 [root@localhost jenkins]# netstat -tunlp | grep 80 2 tcp6 0 0 :::8089 :::* LISTEN 17195/docker-proxy 3 tcp6 0 0 :::8001 :::* LISTEN 22015/docker-proxy 4 tcp6 0 0 127.0.0.1:8005 :::* LISTEN 11823/java 5 tcp6 0 0 :::8009 :::* LISTEN 11823/java 6 tcp6 0 0 :::80 :::* LISTEN 11823/java 7 tcp6 0 0 :::8081 :::* LISTEN 22871/docker-proxy 8 [root@localhost jenkins]# ps -aux | grep 11823 9 root 2069 0.0 0.0 110292 900 pts/1 S+ 16:20 0:00 grep --color=auto 11823 10 root 11823 0.4 17.5 8961408 2676892 ? Sl 9月23 30:16 /home/jdk/jre/bin/java -Djava.util.logging.config.file=/home/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Dorg.apache.catalina.security.SecurityListener.UMASK=0027 -Dignore.endorsed.dirs= -classpath /home/tomcat/bin/bootstrap.jar:/home/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/home/tomcat -Dcatalina.home=/home/tomcat -Djava.io.tmpdir=/home/tomcat/temp org.apache.catalina.startup.Bootstrap start
First check process to enable a port 80
- netstat -tunlp | grep 80
We can see the process of port 80 to 11823
View 11823 What process
- ps aux | grep 11823
Found to be 80 port tomcat start