problem with squid

Discussion in 'Server Operation' started by nuxia, Feb 21, 2008.

  1. nuxia

    nuxia New Member

    Hello everybody,
    I have a problem with squid server, in the morning at the same time, every machine on our local network can’t have access to Internet and I have therefore to manually restart the computer on which squid is installed to make Internet accessible again.
    I have found following in /var/log/daemon.log at the time when the connection is interrupted:

    Feb 18 06:25:58 localhost squid[3501]: storeDirWriteCleanLogs: Starting...
    Feb 18 06:25:58 localhost squid[3501]: Finished. Wrote 8952 entries.
    Feb 18 06:25:58 localhost squid[3501]: Took 0.1 seconds (171787.1 entries/sec).
    Feb 18 06:25:58 localhost squid[3501]: logfileRotate: /var/log/squid/store.log
    Feb 18 06:25:58 localhost squid[3501]: logfileRotate: /var/log/squid/access.log
    Feb 18 06:25:58 localhost squid[3501]: helperOpenServers: Starting 5 'ldap_auth' processes

    Excepting this trouble, squid seems running fine.
    Is there something in squid.conf I should be changing to avoid this problem?
    Thank you for giving me any suggestions.
    Bye!
     
  2. topdog

    topdog New Member HowtoForge Supporter

    That is just a log of squid starting, you need to go through the logs to see exactly why squid dies, it is usually something to do with the OS not squid itself but in your case it does not seem like its disks being full.
     
  3. nuxia

    nuxia New Member

    Thanks for your suggestion, but I have already looked at the contents of the store.log and access.log in /var/log/squid/ but I've found noline telling why squid die.
    I have found following in /var/log/squid/cache.log at the time when the connection is interrupted too:
    2008/02/18 06:25:57| storeDirWriteCleanLogs: Starting...
    2008/02/18 06:25:58| Finished. Wrote 8952 entries.
    2008/02/18 06:25:58| Took 0.1 seconds (171787.1 entries/sec).
    2008/02/18 06:25:58| logfileRotate: /var/log/squid/store.log
    2008/02/18 06:25:58| logfileRotate: /var/log/squid/access.log
    2008/02/18 06:25:58| helperOpenServers: Starting 5 'ldap_auth' processes
    In the other hand, I've looked at the processes and I found this:
    dansgua 18261 0.0 3.8 21556 19724 ? Ss 06:25 0:00 /usr/sbin/dansguardian
    dansgua 18262 0.0 3.8 21560 19724 ? S 06:25 0:00 /usr/sbin/dansguardian
    dansgua 18263 0.0 3.8 22536 19728 ? S 06:25 0:00 /usr/sbin/dansguardian
    dansgua 18264 0.0 3.8 21568 19860 ? S 06:25 0:00 /usr/sbin/dansguardian
    dansgua 18265 0.0 3.8 21556 19724 ? S 06:25 0:00 /usr/sbin/dansguardian
    dansgua 18266 0.0 3.8 21556 19724 ? S 06:25 0:00 /usr/sbin/dansguardian
    dansgua 18267 0.0 3.8 21556 19724 ? S 06:25 0:00 /usr/sbin/dansguardian
    dansgua 18268 0.0 3.8 21556 19724 ? S 06:25 0:00 /usr/sbin/dansguardian
    dansgua 18269 0.0 3.8 21556 19724 ? S 06:25 0:00 /usr/sbin/dansguardian
    dansgua 18270 0.0 3.8 21556 19724 ? S 06:25 0:00 /usr/sbin/dansguardian
    dansgua 18271 0.0 3.8 21556 19724 ? S 06:25 0:00 /usr/sbin/dansguardian
    Is it in relation with?
    Thank you for helping me.
     
  4. topdog

    topdog New Member HowtoForge Supporter

    If you are running on a redhat like system check /var/log/messages if a debian like one then /var/log/syslog, Yes the dansguardian processes are used by squid but are not capable of killing squid, unless of course they are taking up all the system memory.

    Next time the squid fails dont reboot the box check the conditions on the box at the time try restarting squid itself and see if it can start if there is a system problem it will not start but it will issue out an error message.

    Rebooting the whole box seems to clear the system problem which means you dont get to the bottom of the issue.
     
  5. nuxia

    nuxia New Member

    Thank you for your suggestion but I've already done that using:

    # crontab -e
    30 6 * * * /etc/init.d/squid restart

    This command makes squid restarting itself at 6h30 after the interruption at 6h25, but Internet is still inaccessible.

    And this morning I have found this following in the /var/log/syslog (debian) just after the interruption as first line:

    Feb 23 06:26:18 localhost syslogd 1.4.1#17 : restart
     
  6. nuxia

    nuxia New Member

    Here is my squid.conf's content:

    http_port 3128

    hierarchy_stoplist cgi-bin ?

    acl QUERY urlpath_regex cgi-bin \?
    no_cache deny QUERY

    cache_mem 8 MB
    cache_swap_low 90
    cache_swap_high 95

    maximum_object_size 4096 KB
    minimum_object_size 0 KB
    maximum_object_size_in_memory 8 KB

    fqdncache_size 1024

    emulate_httpd_log off

    hosts_file /etc/hosts

    auth_param basic program /usr/lib/squid/ldap_auth -h 127.0.0.1 -D "cn=admin,dc=univ-antsiranana,dc=mg" -w admin07die -b "dc=univ-antsiranana,dc=mg" -f (&(objectclass=posixAccount)(uid=%s))

    auth_param basic children 5
    auth_param basic realm Entrer votre identifiant et mot de passe
    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

    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 to_localhost dst 127.0.0.0/8

    acl clients src 192.168.82.0/255.255.255.0

    acl AUTH proxy_auth REQUIRED

    acl url_mp3 urlpath_regex -i \.mp3$
    acl url_avi urlpath_regex -i \.avi$
    acl url_mpeg urlpath_regex -i \.mpeg$

    acl SSL_ports port 443 563 # https, snews
    acl SSL_ports port 873 # rsync

    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 Safe_ports port 631 # cups
    acl Safe_ports port 873 # rsync
    acl Safe_ports port 901 # SWAT
    acl purge method PURGE
    acl CONNECT method CONNECT

    http_access allow manager localhost
    http_access deny manager
    http_access allow purge localhost
    http_access deny purge
    http_access deny !Safe_ports
    http_access deny CONNECT !SSL_ports
    http_access allow localhost
    http_access allow clients AUTH
    http_access deny url_mp3
    http_access deny url_avi
    http_access deny url_mpeg
    http_access deny all
    http_reply_access allow all

    icp_access allow all

    httpd_accel_host virtual
    httpd_accel_port 80
    httpd_accel_single_host off
    httpd_accel_with_proxy on
    httpd_accel_uses_host_header on

    client_db on

    coredump_dir /var/spool/squid
     

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