Bug#1065433: nagios4: Nagios sents wrong UP messages of hosts, that are NOT UP
Package: nagios4 Version: 4.4.6-4 Severity: important X-Debbugs-Cc: li...@christanell.info Dear Maintainer, *** Reporter, please consider answering these questions, where appropriate *** * What led up to the situation? - I installed nagios on a fresh debian12 vm, and everything seems to work fine. But when I'm checking the nagios logfile, I find multiple (~50/sec) entries, which report a Host UP that never went up. * What exactly did you do (or not do) that was effective (or ineffective)? - I tryied to install it on new VMs multiple times, but the result stays the same. The strange thing it works perfect on the same Hardware when I use 'debian11'. I even tryied to install it on new servers, because I thougt maybe the old ones are not powerfull enaugh(we have ~1 Hosts and services on this instance) * What was the outcome of this action? - Nothing, I was not able to solve the probelm. * What outcome did you expect instead? - I thougt it would work fine, as with debain11, because the new servers are much more powerfull. *** End of the template - remove these template lines *** -- System Information: Debian Release: 12.5 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 6.1.0-18-amd64 (SMP w/8 CPU threads; PREEMPT) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages nagios4 depends on: ii nagios4-cgi 4.4.6-4 ii nagios4-common 4.4.6-4 ii nagios4-core4.4.6-4 nagios4 recommends no packages. Versions of packages nagios4 suggests: pn nagios-nrpe-plugin -- no debconf information
Bug#1055978: mtr-tiny: traceroute does not stop on subnet router anycast addresses
Package: mtr-tiny Version: 0.94-1+deb11u1 Severity: normal Tags: ipv6 X-Debbugs-Cc: li...@christanell.info Dear Maintainer, When I'm trying to use mtr to an 'subnet router anycast address' which terminates on a linux router, the router answers with the IPv6 address configured on it's interface and not the anycast address, so the mtr does not stop. (For the example I use the IPv6 documentation address space) Let's say my linux router has the IPv6 2001:db8:0:1::1/64 and I want to make a traceroute to 2001:db8:0:1:: Example: mtr 2001:db8:0:1:: Host Loss% Snt Last Avg Best Wrst StDev 1. :::X:XX0.0% 30.7 1.4 0.7 2.6 1.1 2. :::X:XX0.0% 32.4 1.3 0.7 2.4 1.0 3. :::X:XX0.0% 33.4 4.5 3.4 5.5 1.1 4. 2001:db8:0:1::10.0% 33.7 3.6 3.5 3.7 0.1 5. 2001:db8:0:1::10.0% 33.7 3.6 3.5 3.7 0.1 6. 2001:db8:0:1::10.0% 33.7 3.6 3.5 3.7 0.1 7. 2001:db8:0:1::10.0% 33.7 3.6 3.5 3.7 0.1 8. 2001:db8:0:1::10.0% 33.7 3.6 3.5 3.7 0.1 9. 2001:db8:0:1::10.0% 33.7 3.6 3.5 3.7 0.1 10. ... In my opinion the mtr does not stop, because it does not get an answer from the requested address, but because it's an 'subnet router anycast address' the router answers anyway, which is correct. Maybe I'm wrong, but I would expect a result like this: Example: mtr 2001:db8:0:1:: Host Loss% Snt Last Avg Best Wrst StDev 1. :::X:XX0.0% 30.7 1.4 0.7 2.6 1.1 2. :::X:XX0.0% 32.4 1.3 0.7 2.4 1.0 3. :::X:XX0.0% 33.4 4.5 3.4 5.5 1.1 4. 2001:db8:0:1:: 0.0% 33.7 3.6 3.5 3.7 0.1 As far as I found out, it seems to only appear on linux routers, so I'm not 100% sure if it's a bug in mtr-tiny or a misconfiguration on the linux routers. -- System Information: Debian Release: 11.8 APT prefers oldstable-updates APT policy: (500, 'oldstable-updates'), (500, 'oldstable-security'), (500, 'oldstable') Architecture: amd64 (x86_64) Kernel: Linux 5.10.0-26-amd64 (SMP w/1 CPU thread) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages mtr-tiny depends on: ii libc62.31-13+deb11u7 ii libjansson4 2.13.1-1.1 ii libncurses6 6.2+20201114-2+deb11u2 ii libtinfo66.2+20201114-2+deb11u2 mtr-tiny recommends no packages. mtr-tiny suggests no packages. -- no debconf information
