Liebe Kollegen, Ein seltsames Phänomen:
zum wiederholten Mal kurz vor 12.00 Uhr im Unterricht (Raum 206) plötzlich kein Internet mehr -> Cache leeren im Ipfire brachte das Internet schnell wieder zurück. , dann kurz darauf keine Netzwerk mehr. Ein Rechtklick bei Win7 auf Netzwerk -> "Problem beheben" bringt das Netzwerk zurück. Leider können die Kollegen da nicht so schnell eingreifen. Kennt jemand die Ursache? Ich habe einmal einen Auszug aus der syslog vom 25.6. angehängt. Darin erscheint öfter ein named[1551]: error (network unreachable) resolving ... just auch zu diesem Zeitpunkt. Gibt es da einen Zusammenhang? Hat da jemand eine Idee? System (virtualisiert): linuxmuster.net 6.0 (Domain heißt aber noch paedml-linux.lokal) ipfire (core 88) t@school über belwue Danke für Hilfen Viele Grüße Heinrich
Jun 25 10:27:01 bsk1 CRON[4011]: (www-data) CMD (test -x /usr/bin/php && ! test -f /tmp/kronolith-cron.lock && touch /tmp/kronolith-cron.lock && /usr/bin/php -q /usr/share/horde3/kronolith/scripts/reminders.php > /dev/null 2>&1 && rm -f /tmp/kronolith-cron.lock) Jun 25 10:27:07 bsk1 dhcpd: DHCPINFORM from 10.16.208.16 via eth0 Jun 25 10:27:07 bsk1 dhcpd: DHCPACK to 10.16.208.16 (00:19:99:cd:b6:84) via eth0 Jun 25 10:27:38 bsk1 named[1551]: error (network unreachable) resolving './NS/IN': 2001:503:ba3e::2:30#53 Jun 25 10:27:51 bsk1 dhcpd: DHCPINFORM from 10.16.208.7 via eth0 Jun 25 10:27:51 bsk1 dhcpd: DHCPACK to 10.16.208.7 (00:19:99:cd:89:19) via eth0 Jun 25 10:28:01 bsk1 CRON[4428]: (www-data) CMD (test -x /usr/bin/php && ! test -f /tmp/kronolith-cron.lock && touch /tmp/kronolith-cron.lock && /usr/bin/php -q /usr/share/horde3/kronolith/scripts/reminders.php > /dev/null 2>&1 && rm -f /tmp/kronolith-cron.lock) Jun 25 10:40:01 bsk1 CRON[4870]: (www-data) CMD ( test -x /usr/bin/php && /usr/bin/php -q /usr/share/horde3/scripts/alarms.php > /dev/null 2>&1 || true) Jun 25 10:40:57 bsk1 named[1551]: error (network unreachable) resolving 'mep-de.sensic.net/A/IN': 2001:503:a83e::2:30#53 Jun 25 10:40:59 bsk1 named[1551]: error (network unreachable) resolving 'eqx.smartadserver.com/A/IN': 2001:503:a83e::2:30#53 Jun 25 10:41:01 bsk1 CRON[4903]: (www-data) CMD (test -x /usr/bin/php && ! test -f /tmp/kronolith-cron.lock && touch /tmp/kronolith-cron.lock && /usr/bin/php -q /usr/share/horde3/kronolith/scripts/reminders.php > /dev/null 2>&1 && rm -f /tmp/kronolith-cron.lock) Jun 25 10:41:58 bsk1 named[1551]: error (network unreachable) resolving 'cse.google.de/A/IN': 2001:678:2::53#53 Jun 25 10:42:01 bsk1 CRON[4921]: (www-data) CMD (test -x /usr/bin/php && ! test -f /tmp/kronolith-cron.lock && touch /tmp/kronolith-cron.lock && /usr/bin/php -q /usr/share/horde3/kronolith/scripts/reminders.php > /dev/null 2>&1 && rm -f /tmp/kronolith-cron.lock) Jun 25 10:42:08 bsk1 ntpd[1322]: peer 213.209.109.45 now invalid Jun 25 10:42:13 bsk1 dhcpd: DHCPREQUEST for 10.16.206.33 from 00:01:e6:27:0a:6e via eth0 Jun 25 10:42:13 bsk1 dhcpd: DHCPACK on 10.16.206.33 to 00:01:e6:27:0a:6e via eth0 Jun 25 10:42:29 bsk1 named[1551]: error (network unreachable) resolving 'www.gstatic.com/A/IN': 2001:503:231d::2:30#53 Jun 25 10:42:43 bsk1 master[4928]: about to exec /usr/sbin/ctl_cyrusdb Jun 25 10:42:43 bsk1 cyrus/ctl_cyrusdb[4928]: checkpointing cyrus databases Jun 25 10:42:43 bsk1 cyrus/ctl_cyrusdb[4928]: archiving database file: /var/lib/cyrus/mailboxes.db Jun 25 10:42:43 bsk1 cyrus/ctl_cyrusdb[4928]: archiving database file: /var/lib/cyrus/annotations.db Jun 25 10:42:43 bsk1 cyrus/ctl_cyrusdb[4928]: done checkpointing cyrus databases Jun 25 10:42:43 bsk1 master[2572]: process 4928 exited, status 0 Jun 25 10:42:54 bsk1 nagios3: Auto-save of retention data completed successfully. Jun 25 10:43:01 bsk1 CRON[4938]: (www-data) CMD (test -x /usr/bin/php && ! test -f /tmp/kronolith-cron.lock && touch /tmp/kronolith-cron.lock && /usr/bin/php -q /usr/share/horde3/kronolith/scripts/reminders.php > /dev/null 2>&1 && rm -f /tmp/kronolith-cron.lock) Jun 25 10:45:01 bsk1 CRON[4983]: (www-data) CMD ( test -x /usr/bin/php && /usr/bin/php -q /usr/share/horde3/scripts/alarms.php > /dev/null 2>&1 || true) Jun 25 10:45:04 bsk1 named[1551]: error (network unreachable) resolving 'www.kinofenster.de/A/IN': 2a02:568:0:2::53#53 Jun 25 10:45:39 bsk1 dhcpd: uid lease 10.16.1.104 for client 90:1b:0e:1f:cb:88 is duplicate on 10.16.0.0/12 Jun 25 10:45:39 bsk1 dhcpd: DHCPREQUEST for 10.16.98.1 from 90:1b:0e:1f:cb:88 via eth0 Jun 25 10:45:39 bsk1 dhcpd: DHCPACK on 10.16.98.1 to 90:1b:0e:1f:cb:88 via eth0 Jun 25 10:46:01 bsk1 CRON[5012]: (www-data) CMD (test -x /usr/bin/php && ! test -f /tmp/kronolith-cron.lock && touch /tmp/kronolith-cron.lock && /usr/bin/php -q /usr/share/horde3/kronolith/scripts/reminders.php > /dev/null 2>&1 && rm -f /tmp/kronolith-cron.lock) Jun 25 10:46:38 bsk1 named[1551]: error (network unreachable) resolving 'www.info.das-tierlexikon.de/A/IN': 2001:668:1f:11::105#53 Jun 25 10:47:02 bsk1 CRON[5037]: (www-data) CMD (test -x /usr/bin/php && ! test -f /tmp/kronolith-cron.lock && touch /tmp/kronolith-cron.lock && /usr/bin/php -q /usr/share/horde3/kronolith/scripts/reminders.php > /dev/null 2>&1 && rm -f /tmp/kronolith-cron.lock) Jun 25 11:47:01 bsk1 CRON[18808]: (www-data) CMD (test -x /usr/bin/php && ! test -f /tmp/kronolith-cron.lock && touch /tmp/kronolith-cron.lock && /usr/bin/php -q /usr/share/horde3/kronolith/scripts/reminders.php > /dev/null 2>&1 && rm -f /tmp/kronolith-cron.lock) Jun 25 11:47:21 bsk1 dhcpd: DHCPREQUEST for 10.16.208.22 from 00:0e:7f:d8:b2:9c via eth0 Jun 25 11:47:21 bsk1 dhcpd: DHCPACK on 10.16.208.22 to 00:0e:7f:d8:b2:9c via eth0 Jun 25 11:47:27 bsk1 dhcpd: DHCPREQUEST for 10.16.208.13 from 00:19:99:cd:89:1f via eth0 Jun 25 11:47:27 bsk1 dhcpd: DHCPACK on 10.16.208.13 to 00:19:99:cd:89:1f via eth0 Jun 25 11:47:30 bsk1 dhcpd: DHCPREQUEST for 10.16.208.12 from 00:19:99:cd:89:17 via eth0 Jun 25 11:47:30 bsk1 dhcpd: DHCPACK on 10.16.208.12 to 00:19:99:cd:89:17 via eth0 Jun 25 11:47:39 bsk1 dhcpd: DHCPREQUEST for 10.16.208.15 from 00:19:99:cd:b6:a6 via eth0 Jun 25 11:47:39 bsk1 dhcpd: DHCPACK on 10.16.208.15 to 00:19:99:cd:b6:a6 via eth0 Jun 25 11:48:01 bsk1 CRON[18837]: (www-data) CMD (test -x /usr/bin/php && ! test -f /tmp/kronolith-cron.lock && touch /tmp/kronolith-cron.lock && /usr/bin/php -q /usr/share/horde3/kronolith/scripts/reminders.php > /dev/null 2>&1 && rm -f /tmp/kronolith-cron.lock) Jun 25 11:48:48 bsk1 named[1551]: error (network unreachable) resolving 'tiles.cdn.mozilla.net/A/IN': 2001:503:a83e::2:30#53 Jun 25 11:49:01 bsk1 CRON[18913]: (www-data) CMD (test -x /usr/bin/php && ! test -f /tmp/kronolith-cron.lock && touch /tmp/kronolith-cron.lock && /usr/bin/php -q /usr/share/horde3/kronolith/scripts/reminders.php > /dev/null 2>&1 && rm -f /tmp/kronolith-cron.lock) Jun 25 11:49:17 bsk1 dhcpd: DHCPREQUEST for 10.16.208.14 from 00:19:99:cd:89:1d via eth0 Jun 25 11:49:17 bsk1 dhcpd: DHCPACK on 10.16.208.14 to 00:19:99:cd:89:1d via eth0 Jun 25 11:50:01 bsk1 CRON[18938]: (www-data) CMD ( test -x /usr/bin/php && /usr/bin/php -q /usr/share/horde3/scripts/alarms.php > /dev/null 2>&1 || true) Jun 25 11:50:01 bsk1 CRON[18939]: (www-data) CMD (test -x /usr/bin/php && ! test -f /tmp/kronolith-cron.lock && touch /tmp/kronolith-cron.lock && /usr/bin/php -q /usr/share/horde3/kronolith/scripts/reminders.php > /dev/null 2>&1 && rm -f /tmp/kronolith-cron.lock) Jun 25 11:53:33 bsk1 master[2572]: process 18997 exited, status 0 Jun 25 11:53:41 bsk1 cyrus/pop3s[19018]: counts: retr=<0> top=<0> dele=<0> Jun 25 11:53:41 bsk1 master[2572]: process 19018 exited, status 0 Jun 25 11:53:51 bsk1 named[1551]: error (network unreachable) resolving 'audownload.windowsupdate.nsatc.net/A/IN': 2001:503:231d::2:30#53 Jun 25 11:54:01 bsk1 CRON[19114]: (www-data) CMD (test -x /usr/bin/php && ! test -f /tmp/kronolith-cron.lock && touch /tmp/kronolith-cron.lock && /usr/bin/php -q /usr/share/horde3/kronolith/scripts/reminders.php > /dev/null 2>&1 && rm -f /tmp/kronolith-cron.lock) Jun 25 11:57:16 bsk1 named[1551]: error (network unreachable) resolving 'tools.l.google.com/A/IN': 2001:503:a83e::2:30#53 Jun 25 11:57:16 bsk1 named[1551]: error (network unreachable) resolving 'tools.l.google.com/A/IN': 2001:503:231d::2:30#53 Jun 25 11:57:17 bsk1 named[1551]: error (network unreachable) resolving 'www.booking.com/A/IN': 2001:503:a83e::2:30#53 Jun 25 11:57:17 bsk1 named[1551]: error (network unreachable) resolving 'www.booking.com/A/IN': 2001:503:231d::2:30#53 Jun 25 11:57:26 bsk1 named[1551]: success resolving 'www.booking.com/A' (in 'booking.com'?) after disabling EDNS Jun 25 11:57:26 bsk1 named[1551]: success resolving 'dns.msftncsi.com/A' (in 'msftncsi.com'?) after disabling EDNS Jun 25 11:58:01 bsk1 CRON[19663]: (www-data) CMD (test -x /usr/bin/php && ! test -f /tmp/kronolith-cron.lock && touch /tmp/kronolith-cron.lock && /usr/bin/php -q /usr/share/horde3/kronolith/scripts/reminders.php > /dev/null 2>&1 && rm -f /tmp/kronolith-cron.lock)
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