How to configure proxy for common linux apps

pear

to use a proxy with PEAR, you should use

 $ pear config-set http_proxy http://proxypc.localdomain 

yum

For yum to work you have to add these settings to /etc/yum.conf

 export http_proxy=http://192.168.65.253:8080
export ftp_proxy=http://192.168.65.253:8080 

wget

For wget to work add this to ~./bash_profile

 export http_proxy=http://192.168.65.253:8080
export ftp_proxy=http://192.168.65.253:8080 

then run command

 source ~./bash_profile