<html><head></head><body><div class="yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div dir="ltr" data-setdir="false">Hi Team</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Can you please let us know what this error means - TAG_NONE/503 in the access logs.</div><div dir="ltr" data-setdir="false">Some times, I get the above error for all the URLs and no one is able to reach the internet and now I am facing the issue only for specific URLs.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">The concern is that the issue gets automatically solved without making any changes to any configuration and it comes back again and again and it gets resolved.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">The below is the configuration in the proxy server.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false"><div><div>###IP Ranges</div><div><br></div><div>acl localnet src "/etc/squid/linux_server.txt"</div><div>acl localnet src "/etc/squid/server_allowed.txt"</div><div><br></div><div><br></div><div>### URL - Allow / Deny</div><div><br></div><div>acl allowedurl dstdomain "/etc/squid/allowed_url.txt"</div><div>acl denylist dstdomain "/etc/squid/denylist.txt"</div><div><br></div><div>acl Safe_ports port 80 # http</div><div>acl Safe_ports port 443 # https</div><div>acl CONNECT method CONNECT</div><div><br></div><div>http_access deny denylist</div><div>http_access deny !Safe_ports</div><div>http_access allow allowedurl</div><div><br></div><div>http_access allow localhost manager</div><div>http_access deny manager</div><div><br></div><div>http_access allow localnet</div><div>http_access allow localhost</div><div>http_access deny all</div><div><br></div><div>http_port 8080</div><div><br></div><div>cache_dir ufs /var/spool/squid 10000 16 256</div><div>coredump_dir /var/spool/squid</div><div><br></div><div>refresh_pattern -i windowsupdate.com/.*\.(cab|exe|ms[i|u|f]|[ap]sf|wm[v|a]|dat|zip) 4320 80% 43200 reload-into-ims</div><div>refresh_pattern -i microsoft.com/.*\.(cab|exe|ms[i|u|f]|[ap]sf|wm[v|a]|dat|zip) 4320 80% 43200 reload-into-ims</div><div>refresh_pattern -i windows.com/.*\.(cab|exe|ms[i|u|f]|[ap]sf|wm[v|a]|dat|zip) 4320 80% 43200 reload-into-ims</div><div>refresh_pattern ^ftp: 1440 20% 10080</div><div>refresh_pattern ^gopher: 1440 0% 1440</div><div>refresh_pattern -i (/cgi-bin/|\?) 0 0% 0</div><div>refresh_pattern . 0 20% 4320</div></div><br></div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Could you please let me know what causes these issues and how to give a permanent fix.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Regards</div><div dir="ltr" data-setdir="false">Arjun K.</div></div></body></html>