Proxy Server - slow internet

[wizzkid]

Hi

I have squid proxy server running on CentOS 5.5

This past few days, I found out that our internet become very slow when the squid server is connected to the network. Upon checking our bandwidth utilization, it max out the upstream of our internet. Nobody from our network is uploading data. This could be the server?

Here's my squid.conf

auth_param basic children 5
auth_param basic realm Squid proxy-caching web server
auth_param basic credentialsttl 2 hours
auth_param basic casesensitive off

acl blocksites url_regex "/etc/squid/block.sites.acl"
http_access deny blocksites

acl blockfiles urlpath_regex "/etc/squid/block.files.acl"
deny_info ERR_BLOCKED_FILES blockfiles
http_access deny blockfiles

acl all src 0.0.0.0/0.0.0.0
acl manager proto cache_object
acl localhost src 127.0.0.1/255.255.255.255
acl SSL_ports port 443 563
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
acl lan src 53.71.17.34 10.10.20.0/24
http_access deny all
icp_access allow all
http_port 3128 transparent
hierarchy_stoplist cgi-bin ?
cache_mem 128 MB
cache_dir ufs /var/spool/squid 10000 32 256
access_log /var/log/squid/access.log squid
acl QUERY urlpath_regex cgi-bin \?
refresh_pattern ^ftp:           1440    20%     10080
refresh_pattern ^gopher:        1440    0%      1440
refresh_pattern (cgi-bin|\?)    0       0%      0
refresh_pattern .               0       20%     4320
acl apache rep_header Server ^Apache
broken_vary_encoding allow apache

cache_mgr PROX-IT
cache_effective_user squid
cache_effective_group squid
visible_hostname PROX
icp_port 3130
always_direct   allow   all
forwarded_for off

coredump_dir /var/spool/squid

I've setup my IPTABLES for transparent proxy and working.

I know the upload thing is the issue, but I could not find out where to check.


Hope you can help.

[wizzkid]

I am also experiencing on this issue and looking for fix.

Hope anybody can help to fix this issue.

Thanks