Date: Thu, 23 Nov 2017 09:48:33 -0500 From: Ernie Luzar <luzar722@gmail.com> To: zep <zgreenfelder@gmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: Network interface status: command Message-ID: <5A16DFC1.6050406@gmail.com> In-Reply-To: <4244add0-e809-7de6-2438-62447e49ba4f@gmail.com> References: <5A16D9A8.3080303@gmail.com> <4244add0-e809-7de6-2438-62447e49ba4f@gmail.com>
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zep wrote: > On 11/23/2017 09:22 AM, Ernie Luzar wrote: >> In the daily run status report I see a "Network interface status:" >> display. >> >> What console command is generating it? >> > tl;dr -- netstat with a couple options i & d. > > I'd never really noticed it; it probably would be helpful to put the > output just to make sure things are lining up, and rather than just hand > you what I think is going on, this seems like a good time to teach > people what little I know of fishing. > if the email you're seeing is part of a daily run, it's set by the > system and not something you put in as root user (you can do crontab -l > as root to verify it's not there), then there's the system cron file in > /etc/crontab > > # Perform daily/weekly/monthly maintenance. > 1 3 * * * root periodic daily > 15 4 * * 6 root periodic weekly > 30 5 1 * * root periodic monthly > > that seems like a pretty good suspect, man on 'periodic' - > > If an argument is an absolute directory name it is used as is, > otherwise > it is searched for under /etc/periodic and any other directories speci- > fied by the local_periodic setting in periodic.conf(5) (see below). > > check the directories > > root@nexus:/etc/periodic/daily # ls > 100.clean-disks 330.news 440.status-mailq > 110.clean-tmps 400.status-disks 450.status-security > 120.clean-preserve 401.status-graid 460.status-mail-rejects > 130.clean-msgs 404.status-zfs 480.leapfile-ntpd > 140.clean-rwho 406.status-gmirror 480.status-ntpd > 150.clean-hoststat 407.status-graid3 500.queuerun > 200.backup-passwd 408.status-gstripe 510.status-world-kernel > 210.backup-aliases 409.status-gconcat 800.scrub-zfs > 300.calendar 420.status-network 999.local > 310.accounting 430.status-rwho > > that 420.status-network seems like a good candidate > > root@nexus:/etc/periodic/daily # sh -x 420.status-network > > ... > > + echo 'Network interface status:' > Network interface status: > + flags=-d > + netstat -i -d > Name Mtu Network Address Ipkts Ierrs Idrop > Opkts Oerrs Coll Drop > em0 1500 <Link#1> XXX 22874340 0 0 574773 0 > 0 0 > em0 - 192.168.XX.0/ nexus 1172609 - - > 540898 - - - > lo0 16384 <Link#2> 3749 0 0 > 3749 0 0 0 > lo0 - localhost ::1 0 - - > 0 - - - > lo0 - fe80::1%lo0 fe80::1%lo0 0 - - > 0 - - - > lo0 - your-net localhost 3749 - - > 3749 - - - > + rc=0 > > and I think you'd find that's a decent match for what you get in your email. > > ... > > Thank you for the info. netstat -i -d is what I was looking for.
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