Hellow linux expert,

I have a squid working on my gateway machine.
In squid.conf file , i am using 3 variables of different groups(php,dotnet, seo, Admin). in each group i have given the usrname respectively.
i am using 4MB internet connection. now i want that :
1. the users in php group should not use bandwidth of > 256kbps.
2. The users in the Dotnet group should not use bandwidth > 256 kbps
3. The users in the SEO group should not use bandwidth > 512 kbps
4. The users in the admin group should able to browse internet with rest of the bandwidth left.

All the above i want to implement it on squid.conf file.
Please tell me the squid variable that i should use and can you plz explain its meaning and purpose.

i know that this can happen.
Please any Professional help me.