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Continously DNS connect to failed error log & Virus_sample_uploader

hasan bozkuty

2023:10:26-14:56:01 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-14:56:01 user /usr/sbin/cron[3877]: (httpproxy) CMD (/var/chroot-http/usr/bin/virus_sample_uploader -p /var/chroot-http)
2023:10:26-14:57:11 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-14:58:21 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-14:59:31 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-15:00:01 user /usr/sbin/cron[4524]: (root) CMD (/var/mdw/scripts/pmx-blocklist-update)
2023:10:26-15:00:01 user /usr/sbin/cron[4529]: (root) CMD ( /usr/local/bin/reporter/system-reporter.pl)
2023:10:26-15:00:01 user /usr/sbin/cron[4528]: (root) CMD ( /var/chroot-http/var/sandboxd/tools/clear_cache_data.plx)
2023:10:26-15:00:01 user /usr/sbin/cron[4531]: (root) CMD ( /var/chroot-httpd/var/webadmin/extra/httpd_session_cleanup)
2023:10:26-15:00:01 user /usr/sbin/cron[4533]: (root) CMD ( /usr/local/bin/rpmdb_backup )
2023:10:26-15:00:41 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-14:56:01 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-14:56:01 user /usr/sbin/cron[3877]: (httpproxy) CMD (/var/chroot-http/usr/bin/virus_sample_uploader -p /var/chroot-http)
2023:10:26-14:57:11 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-14:58:21 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-14:59:31 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-15:00:01 user /usr/sbin/cron[4524]: (root) CMD (/var/mdw/scripts/pmx-blocklist-update)
2023:10:26-15:00:01 user /usr/sbin/cron[4529]: (root) CMD ( /usr/local/bin/reporter/system-reporter.pl)
2023:10:26-15:00:01 user /usr/sbin/cron[4528]: (root) CMD ( /var/chroot-http/var/sandboxd/tools/clear_cache_data.plx)
2023:10:26-15:00:01 user /usr/sbin/cron[4531]: (root) CMD ( /var/chroot-httpd/var/webadmin/extra/httpd_session_cleanup)
2023:10:26-15:00:01 user /usr/sbin/cron[4533]: (root) CMD ( /usr/local/bin/rpmdb_backup )
2023:10:26-15:00:41 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-15:01:01 user /usr/sbin/cron[4713]: (root) CMD (/usr/local/bin/create_rrd_graphs.plx --mode daily,weekly,monthly,yearly --type sandstorm_combined,sandstorm_web,sandstorm_email)
2023:10:26-15:01:01 user /usr/sbin/cron[4714]: (root) CMD (/sbin/audld.plx --trigger)
2023:10:26-15:01:20 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-15:02:01 user /usr/sbin/cron[4935]: (root) CMD ( nice -n19 /usr/local/bin/gen_inline_reporting_data.plx)
2023:10:26-15:02:30 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-15:03:40 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-15:04:50 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-15:05:01 user /usr/sbin/cron[5123]: (root) CMD ( /usr/local/bin/reporter/system-reporter.pl)
2023:10:26-15:05:01 user /usr/sbin/cron[5128]: (root) CMD (/usr/local/bin/create_rrd_graphs.plx --mode daily,weekly,monthly,yearly --type sandstorm_combined,sandstorm_web,sandstorm_email)
2023:10:26-15:05:01 user /usr/sbin/cron[5130]: (httpproxy) CMD (/var/chroot-http/usr/bin/virus_feedback_uploader)
2023:10:26-15:06:01 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-15:06:01 user /usr/sbin/cron[5298]: (httpproxy) CMD (/var/chroot-http/usr/bin/virus_sample_uploader -p /var/chroot-http)
2023:10:26-15:07:01 user dns-resolver[5043]: Updating REF_NetDnsResolver1a :: resolver1.ast.ctmail.com
2023:10:26-15:07:11 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-15:07:21 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-15:08:31 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-15:09:42 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-15:09:42 user dns-resolver[5043]: Updating REF_NetDnsIPrep3t :: iprep3.t.ctmail.com
2023:10:26-15:09:52 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-15:10:01 user /usr/sbin/cron[5548]: (root) CMD (/var/mdw/scripts/pmx-blocklist-update)
2023:10:26-15:10:01 user /usr/sbin/cron[5547]: (root) CMD ( /usr/local/bin/reporter/system-reporter.pl)
2023:10:26-15:11:02 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-15:12:12 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-15:13:23 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-15:14:23 user dns-resolver[5043]: No change to REF_NetDnsResolver1a :: resolver1.ast.ctmail.com
2023:10:26-15:14:33 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-15:15:01 user /usr/sbin/cron[5973]: (root) CMD ( /usr/local/bin/reporter/system-reporter.pl)
2023:10:26-15:15:01 user /usr/sbin/cron[5972]: (root) CMD ( /usr/local/bin/rpmdb_backup )
2023:10:26-15:15:33 user dns-resolver[5043]: Updating REF_NetDnsResolver1a :: resolver1.ast.ctmail.com
2023:10:26-15:15:43 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-15:15:53 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-15:16:01 user /usr/sbin/cron[6140]: (root) CMD (/sbin/audld.plx --trigger)
2023:10:26-15:16:01 user /usr/sbin/cron[6141]: (httpproxy) CMD (/var/chroot-http/usr/bin/virus_sample_uploader -p /var/chroot-http)
2023:10:26-15:16:20 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-15:17:01 user /usr/sbin/cron[6321]: (root) CMD ( nice -n19 /usr/local/bin/gen_inline_reporting_data.plx)
2023:10:26-15:17:30 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-15:18:41 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-15:18:41 user dns-resolver[5043]: Updating REF_NetDnsResolver2a :: resolver2.ast.ctmail.com
2023:10:26-15:18:51 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-15:20:01 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-15:20:01 user /usr/sbin/cron[6536]: (root) CMD (/var/mdw/scripts/pmx-blocklist-update)
2023:10:26-15:20:01 user /usr/sbin/cron[6544]: (root) CMD ( /usr/local/bin/reporter/system-reporter.pl)
2023:10:26-15:20:01 user /usr/sbin/cron[6546]: (httpproxy) CMD (/var/chroot-http/usr/bin/virus_feedback_uploader)
2023:10:26-15:21:11 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-15:22:21 user dns-resolver[5043]: DNS server failed to contact!
2023:10:26-15:23:32 user dns-resolver[5043]: DNS server failed to contact!

Hello guys,

I am completely on Sophos products and firewall themes.

I am getting continously this error from our sophos firewall. 

I have two question here.

1- virus_sample_uploader is trusty ?

2- Why am I getting continously "DNS server failed to contact error " log?

Is there anyone who can help me?

Best regards,

Hasan



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Parents Reply
  • 0 in reply to Raphael Alganes

    Hello Raphael ,

    thanks for you replying to me.

    We are using UTM 9.

    I have just started to work this company and I did not experience these.

     

    in forwarders there are openvpncloud and google dns entries.

    static entries are empty

    request routing from local to our dc machine.

    ntp settings are so;

    please let me know if you need further information.

    btw virus_sample_uploader is a known thing?

    Best regards,

    Hasan

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