[SQU] Intermittent problem when running Squid...

Hi,

I'm running squid as an httpd-accelerator. My squid.conf file is as below :

http_port 81
icp_port 0
acl QUERY urlpath_regex cgi-bin \?
no_cache deny QUERY
cache_mem 32 MB
cache_dir ufs /home/squid 200 16 256
emulate_httpd_log on
redirect_rewrites_host_header off
replacement_policy GDSF
acl all src 0.0.0.0/0.0.0.0
http_access allow all
cache_mgr wongcs@mydomain.com
cache_effective_user squid
cache_effective_group squid
httpd_accel_host virtual
httpd_accel_port 80
httpd_accel_uses_host_header on
log_icp_queries off
cachemgr_passwd my-secret-pass all
buffered_logs on
cache_access_log /var/log/squid/access.log
cache_log /var/log/squid/cache.log
cache_store_log /var/log/squid/store.log

I'm running my servers using NAT behind a firewall. This means that on my servers themselves I use private IP addresses 192.168.1.X which are NAT'ed to public virtual addresses on the firewall. The flow is as below :

Browser <---> 66.140.140.X :80 (firewall) <--> 192.168.1.X :80 (squid; behind firewall) <---> 192.168.1.X : 81 (apache daemon)

My problem is that whenever I restart my computer and go to www.mydomain.com at 66.140.140.X :80, it will get redirected to http://192.168.1.X:81 resulting in an error. What I mean is the URL on the browser will change to http://192.168.1.X:81. This will always happen the first time I go to the page after restarting the PC or after a long time of not going to that page. After that all operations will return to normal until I restart the PC again.

This is a big problem as users frequently get a server not available error when I run squid. I don't mind if it gets redirected to http://www.mydomain.com:81 but this is not so...

Does anybody know what's happening here? Would appreciate any help on this... Thanks...

Wong

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