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My ubuntu server 14.04 stops working after week or so. If I reboot it, it starts working again and works for a while but in a week it stops responding to pings and I cannot ssh or anything. If I try to ping it, the server responds "Destination host unreachable.". I know this isn't much information to resolve this problem but I really don't know where to start looking for. Which log file might be recording failures what causes this kind of problem. This might be a HW issue or maybe temperatures cause my server did this same thing before I reinstalled ubuntu.

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  1. you might login locally and check if server got networking working properly
  2. you might check /var/log/syslog ( general messages about whats going on on a server )
  3. you check logs of applications running on a server ( maybe one of those crash and causes some damages )
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  • This found on syslog. Jun 13 07:10:00 Viped-server smbd[1248]: failed to retrieve printer list: NT_STATUS_UNSUCCESSFUL Jun 13 07:17:01 Viped-server CRON[17244]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly) Jun 13 07:23:00 Viped-server smbd[17508]: [2014/06/13 07:23:00.626663, 0] ../source3/printing/print_cups.c:151(cups_connect) Jun 13 07:23:00 Viped-server smbd[17508]: Unable to connect to CUPS server localhost:631 - Bad file descriptor Jun 13 07:23:00 Viped-server smbd[1248]: [2014/06/13 07:23:00.627053, 0] ../source3/printing/print_cups.c:528(cups_async_callback)
    – Viped
    Commented Jun 14, 2014 at 8:48
  • Sudo crontab -e is empty and on my own crontab there is only line that handles my domain update. And on my samba settings there is nothing about printers. I really don't know where to continue looking for this error. That line was like million times on syslog so thats probably the source of problem.
    – Viped
    Commented Jun 14, 2014 at 9:17

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