Basic load commands to check server load

1) Top  check for the server load and watch for process

2) free –m
it will display the memory status

3)if  a perticular user is causing a high server laod then use "ps U username": it will display the process that are running by the user .

4) Then you can take action against that user.

4) netstat -an |grep :80 |wc -l :

Show how many active connections there are to apache (httpd runs on port 80)

netstat -ntu | awk '{print $5}' | cut -d: -f1 | sort | uniq -c | sort –n

it will display the no of connections form a certain ip

6)if there is MYSQL taking cpu usage then check for mysql status

mysqladmin -u root processlist
check for the databases and suspend that user if any database is using high resources.

7)check /tmp if there is any process taking high resources : chown to root for that process and chmod 000 also if .sh process is running then


chown it to root:root

8)if exim is taking high resources then check for exim logs : use this command :

replace :blackhole: : fail: -- /etc/valiases/*