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I use squid as a private proxy server but when many users use it sometimes he gives the http 500 error

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Can you please show the relevant part of your squid log file? – Khaled Jan 19 '11 at 8:22
up vote 1 down vote accepted

Most probably your squid configuration file (probably /etc/squid/squid.conf) include acl for connection limit, something like

acl maxuserconnections maxconn 3

You can try to locate this using

grep maxconn /etc/squid/* -R

If you adjust relevant maxconn acl, remember to restart squid (/etc/init.d/squid restart or similar, depending on your installation).

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Thanks. To bad that I can't vote up – mazgalici Jan 28 '11 at 20:15
mazgalici: if this helped you, you should accept this answer by pressing accept answer button (…) – Olli Jan 31 '11 at 6:49

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