On 2016-10-29 23:37 -0700, Hadi Motamedi wrote: > I am using a debian server for cdr billing and mediation > device on a remote network. I am experiencing problem that I > am suspicious it comes from main supply power cut at the > remote site. The power supply to the remote site comes from > battery charger that will be automatically switched in circuit > under main supply power cut but cannot provide adequate power > for more than 2 hours . I am suspicious that the remote system > is suffering from many frequent main supply power cut. > > Can you please do me favor and let me know if there is any log > on my debian server that I can check to see if there would be > many frequent power cut there ?
If you mean reboots, you could try something like zgrep ' Command line: BOOT_IMAGE=' /var/log/syslog* Alternatively, look into commands such as last(1), uptime(1), utmpdump(1) or who(1). If you mean power outages short enough to not cause the computer to shut down or reboot, I suspect you'd need special hardware to monitor the mains voltage and report variations to the computer. I don't think your ordinary ATX power supply does that but lots of UPS do. -- André Majorel <http://www.teaser.fr/~amajorel/> bugs.debian.org, your one-stop shop for email addresses.
