Re: [squid-users] Performance tips for squid 3 (config file included)?

On Mon, 20 Sep 2010 14:31:45 -0700, Andrei <funactivities_at_gmail.com>
wrote:
> Thank you so much! I'm not sure if I understood everything, but here
> is what I have so far.
>
> 1) 1GB of RAM in this machine (P4, 40GB IDE, 1GB RAM).
> 2) Running Squid 3.1.3 now :-)
> 3) Not sure what you meant with AUFS. Does this need to be changed?
> cache_dir ufs /var/spool/squid3 7000 16 256

Yes:
  cache_dir aufs /var/spool/squid3 7000 16 256

> 4) Random port for interception? Like this: http_port 3128 transparent

Nevermind. Irrelevant due to (5)

> 5) No NATing is done on this machine.

Ah, "transparent" flag does not means what you think then.

In Squid-3.2 and older it means "traffic arriving at this port has been
redirected here via NAT in the firewall".

What did you actually want?

> 6) Added Safe_Ports and SSL_Ports
>
> Here is a complete config file. Please let me know if missed anything
> and thank you again!
>
> acl manager proto cache_object
> acl localhost src 127.0.0.1/32
> acl to_localhost dst 127.0.0.0/8
> acl localnet src 176.16.0.0/21 #176.16.0.-176.16.3.254 range

/21 includes .255. if you want to exclude the final .255 you will need to
write these as:
  acl localnet src 176.16.0.0-176.16.3.254

> acl localnet2 src 192.168.11.0/24 #192.168.11.0-254 range
> acl localnet3 src 192.168.200.0/24 #192.168.200.0-254 range
> acl SSL_ports port 443
> acl Safe_ports port 80 # http
> acl Safe_ports port 21 # ftp
> acl Safe_ports port 443 # https
> acl Safe_ports port 70 # gopher
> acl Safe_ports port 210 # wais
> acl Safe_ports port 1025-65535 # unregistered ports
> acl Safe_ports port 280 # http-mgmt
> acl Safe_ports port 488 # gss-http
> acl Safe_ports port 591 # filemaker
> acl Safe_ports port 777 # multiling http
> acl CONNECT method CONNECT
> http_access allow manager localhost
> http_access deny manager
> http_access deny !Safe_ports
> http_access deny CONNECT !SSL_ports
> http_access allow localhost
> http_access allow localnet
> http_access allow localnet2
> http_access allow localnet3
> http_access allow all #not restricted because its behind the firewall
> and serving local LAN only. I'm just trying to get this working for
> now...

Testing with the right config is always better then changing things during
the "make live" step.

You can collapse all the localnet ranges down to a single allow, and leave
the "deny all" blocking unknown things. Such as multicast sourced requests
from the internal devices and/or people piggy-backing on your LAN without
your knowledge.

> icp_access allow all
> htcp_access allow all
> http_port 3128 transparent # ok, transparent proxy, no NATing. Not
> sure what WPAD/PAC is...

Enjoy:
 http://wiki.squid-cache.org/SquidFaq/ConfiguringBrowsers

<snip>
> refresh_pattern ^gopher: 1440 0% 1440
> refresh_pattern (cgi-bin|\?) 0 0% 0

The -i and slashes around /cgi-bin/ are important: -i (/cgi-bin/|\?)

> refresh_pattern . 0 40% 40320
> icp_port 3130

ICP is used between cache_peer. If you don't used that set this to '0'

Amos
Received on Tue Sep 21 2010 - 01:35:36 MDT