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Squid 3.1.0.17<--> Google/YouTube "(101) Network is unreachable",, error???

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Hi,

Squid has always been working fine. All websites, except Google, still
work fine! As far as i know nothing changed on my part, except the
weekly Fedora updates.

My internal users get this  "(101) Network is unreachable" error message
when they go through the proxy. My iptables allows ALL outgoing
connections.
When they hit "Reload" or ^R the page loads fine. But after a while when
they go to google again they get the same error. Hit ^R and it works again.
When bypassing the proxy, the connection also works fine!

Only with Google! Other websites work fine!

When i jump to the squid server and issue a wget to
http://www.google.com with and without the proxy i get following results:

WITH PROXY:
===========

[16:28:root@pegasus /var/log/squid]# http_proxy=http://localhost:3128
wget -O /dev/null -S http://www.google.com
--2010-03-09 16:28:38--  http://www.google.com/
Resolving localhost... ::1, 127.0.0.1
Connecting to localhost|::1|:3128... connected.
Proxy request sent, awaiting response...
  HTTP/1.0 503 Service Unavailable
  Server: squid/3.1.0.17
  Mime-Version: 1.0
  Date: Tue, 09 Mar 2010 15:28:38 GMT
  Content-Type: text/html
  Content-Length: 3103
  X-Squid-Error: ERR_CONNECT_FAIL 101
  Vary: Accept-Language
  Content-Language: en
  X-Cache: MISS from pegasus.houtsma.net
  X-Cache-Lookup: MISS from pegasus.houtsma.net:3128
  Via: 1.0 pegasus.houtsma.net (squid/3.1.0.17)
  Proxy-Connection: close
2010-03-09 16:28:38 ERROR 503: Service Unavailable.

WITHOUT PROXY (DIRECT):
======================

[16:28:root@pegasus /var/log/squid]#  wget -O /dev/null -S
http://www.google.com
--2010-03-09 16:29:04--  http://www.google.com/
Resolving www.google.com... 209.85.227.99, 209.85.227.103,
209.85.227.104, ...
Connecting to www.google.com|209.85.227.99|:80... connected.
HTTP request sent, awaiting response...
  HTTP/1.0 302 Found
  Location: http://www.google.nl/
  Cache-Control: private
  Content-Type: text/html; charset=UTF-8
  Set-Cookie:
PREF=ID=1bfd77348d3a379c:TM=1268148544:LM=1268148544:S=_nDFRJT7tp3qefl9;
expires=Thu, 08-Mar-2012 15:29:04 GMT; path=/; domain=.google.com
  Set-Cookie:
NID=32=fAAVBBp0z3d7aMi1hZkzW3VQyGznOU4d3zdyqSdImAbpj-Y4y00_itgmLmg6xUxTCkhIY7cxYTJL9S15aosMYDcFAj6xXCUnCizMTLQ0_ThrCpYf9gxfV7IjOH_NK_ZG;
expires=Wed, 08-Sep-2010 15:29:04 GMT; path=/; domain=.google.com; HttpOnly
  Date: Tue, 09 Mar 2010 15:29:04 GMT
  Server: gws
  Content-Length: 218
  X-XSS-Protection: 0
  Connection: Keep-Alive
 .....


I am out of ideas! Any help is appreciated!

-- Jan Houtsma PGP Key ID: 0x68D146B5 http://www.houtsma.net/key.asc PGP
Fingerprint: DF5C AE86 323D 8029 DF47 EEB8 FB71 080A 68D1 46B5 Config:
======= acl manager proto cache_object acl localhost src 127.0.0.1/32
acl localhost src ::1/128 acl to_localhost dst 127.0.0.0/8 0.0.0.0/32
acl to_localhost dst ::1/128 acl localnet src 10.0.0.0/8 # RFC1918
possible internal network acl localnet src 172.16.0.0/12 # RFC1918
possible internal network acl localnet src 192.168.0.0/16 # RFC1918
possible internal network acl localnet src fc00::/7 # RFC 4193 local
private network range acl localnet src fe80::/10 # RFC 4291 link-local
(directly plugged) machines acl Irc_ports port 6666-6669 # JHH -- Added
acl Msn_ports port 1863 # JHH -- Added acl SSL_ports port 6666-6669 #
JHH -- Added (IRC via http proxy) acl SSL_ports port 443 3511 1863 # JHH
-- Added acl Safe_ports port 80 81 # http -- JHH added port 81 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 http_access allow
localhost http_access allow localnet http_access deny all icp_access
allow localnet icp_access deny all htcp_access allow localnet
htcp_access deny all http_port 3128 hierarchy_stoplist cgi-bin ?
cache_dir ufs /var/spool/squid 1000 16 256 access_log
/var/log/squid/access.log squid refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern -i (/cgi-bin/|\?)
0 0% 0 refresh_pattern . 0 20% 4320 cache_mgr webmaster@xxxxxxxxxxx
visible_hostname pegasus.houtsma.net icp_port 3130 always_direct allow
all coredump_dir /var/spool/squid


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