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Re: slower connections using squid (squid is slowing down all connections)

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On Saturday 24 September 2005 21:15, Matus UHLAR - fantomas wrote:
> > > Okay... These look pretty good.  Hits are fast, misses are okay, DNS
> > > requests are about what I would expect...  I'm a bit perplexed.  What
> > > are the symptoms of slow connections?  Is it throughput on large
> > > downloads, pages with lots of connections (msn.com with it's thousands
> > > of images), does it just take forever for a connection to get started,
> > > or is it something else entirely?
>
> On 24.09 15:21, Alex wrote:
> > NO, the situation is very simple: not matter content of page. Even if
> > www.google.com is accesed, it take more then 20-30s to load/display it
> > correctly. Without squid, www.google.com is loaded instantly!
>
> ehm, this might be caused by:
>
> 1. clients connect from IP's not in DNS, and your squid checks for their
>    reverse (and probably direct) DNS informations

I don't think so...  Indeed, for our clients, i haven't configured 10.0.0.rev 
zone in our DNS (i am using split view dns configuration and all our clients 
queries are comming from: 10.0.x.0/24 subnets, where x = 1 up to 10), 
but .... If you are right, why in the morning or in the afternoon, squid is 
working ok?

> 2. you are requiring ident for them, they are firewalled and don't support
>    ident requests

no, we are in a vpn and for our internal IP address we are passing almost all 
traffic... What's the name of squid directive which enable/disable ident 
requests?

>
> for 99% it's the first case. turn off dns checking in squid, or better, fix
> your internal DNS.

HOW CAN I TURN OFF DNS CHECKING IN SQUID ... log_fqdn directive is turned off 
by default....

Here comes my squid.conf

http_port 3128
hierarchy_stoplist cgi-bin ?
acl QUERY urlpath_regex cgi-bin \?
no_cache deny QUERY
cache_mem 256 MB
maximum_object_size 32768 KB
maximum_object_size_in_memory 64 KB
cache_replacement_policy heap GDSF
memory_replacement_policy heap GDSF
cache_dir aufs /var/spool/squid 20480 16 256
cache_store_log none
ftp_user squid@xxxxxxxxx
auth_param basic children 100
auth_param basic realm Squid proxy-caching server
auth_param basic program /usr/lib/squid/pam_auth
auth_param basic credentialsttl 2 hours
auth_param basic casesensitive off
refresh_pattern ^ftp:           1440    20%     10080
refresh_pattern ^gopher:        1440    0%      1440
refresh_pattern .               0       20%     4320
half_closed_clients off
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 lanpass proxy_auth REQUIRED
acl to_localhost dst 127.0.0.0/8
acl SSL_ports port 443 563
acl Safe_ports port 80          # http
acl Safe_ports port 21          # ftp
acl Safe_ports port 443 563     # https, snews
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 lanpass
http_access deny all
http_reply_access allow all
icp_access allow all
cache_mgr admin@xxxxxxxxx
visible_hostname proxy.mydoom.ro
announce_period 0
log_icp_queries off
cachemgr_passwd *** all
buffered_logs on
coredump_dir /var/spool/squid
client_persistent_connections off

Alex

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