Various Linux small operations

1. View the routing table

Command: route-n; Netstat-r

Tracking Network address: Traceroute www.16 3.com

2. View a machine IP address and its corresponding domain name

Command: nslookup; Dig sina.com.cn; Dig sina.com.cn NS; Dig www.163.com + Trace

3. Query User Information

Command: Finger; W

4. List current system open files

Command: lsof-i: 22

5. View the process

Command: Ps-aux; Ps-qux|grep Nginx; Ps-ef |grep Nginx

6. Find the currently running process and list the process PID that matches the given criteria

Command: Pgrep nginx

7. Terminating a process

Command: kill-9 111

8. Kill all processes by program name

Command: Killall http

Adding static routes in a 9.windows environment

Command: Route add 192.168.1.0 Mask 255.255.255.0 192.168.2.3 (this command fails after reboot)

Route-p Add 192.168.1.0 mask 255.255.255.0 192.168.2.3 (write registry restart will not expire)

Registry Address Hkey_local_machsystem\currentcontrolset\services\tcpip\prameters\persistentroutes

Add static routes under 10.centos

Route add-net 192.168.1.0 netmask 255.255.255.0 GW 192.168.2.5 (reboot will fail)

Route Add-net is the network way to add routes, netmask is the subnet mask, GW next address.

Description 192.168.1.0/24 route through 192.168.2.5 out

Vi/etc/sysconfig/network-scripts/route-eth0

192.168.1.0/24 via 192.168.2.5 (restart will not expire after writing)

Various Linux small operations