"find" and "grep" command

"find" command is used to search for files. you can specify many options with it like files created today or having size greater then you specified. Normally we also combine find with xargs or exec to issue commands on files returned by find.

examples of find command:
* find top 10 largest files in /var:

$ find /var -type f -ls | sort -k 7 -r -n | head -10

* find all files having size more than 5 GB in /var/log/:

$ find /var/log/ -type f -size +5120M -exec ls -lh {} \;

* find all today’s files and copy them to another directory:

$ find /home/me/files -ctime 0  -print -exec cp {} /mnt/backup/{} \;

Squid Proxy Server

Squid Proxy Server

It's used to provide the internet connectivity to network connected system ny using single internet connection.

·         Package Required:- squid

·         Daemon name :--squid

·         Port Number:-- 3128

·         Path of config file:- /etc/squid/squid.conf

Key Point:--

1.    Install squid proxy

2.    on and start service by:- #service squid start

3.    Give two IPs one for internet and another for LAN