One day I will need to enable repeating those messages: [WayBack] linux – Is there a way to remove “Last message repeated x times” from logs? – Server Fault
–jeroen
Archive for the ‘Linux’ Category
linux – Is there a way to remove “Last message repeated x times” from logs? – Server Fault
Posted by jpluimers on 2018/12/17
Posted in *nix, *nix-tools, Linux, Power User | Leave a Comment »
Links for Nagios openSuSE Tumbleweed monitoring (including Android devices)
Posted by jpluimers on 2018/12/13
For my link archive:
- opensuse zypper nagios tumbleweed – Google Search.
- [WayBack] openSUSE 12.2: Chapter 3. Monitoring with Nagios.
- [WayBack] check_zypper – Nagios Exchange.
- [WayBack] How to install Nagios NRPE client on openSuse | Blogs on Octopus.
- [WayBack] How-to : Nagios installation on openSUSE 11.4 “Celadon” | SK Tech Scratchpad.
- [WayBack] sakananote with English: Nagios with openSUSE 12.1.
- Icinga is a drop-in replacement for Nagios.
- I have used nagios in openSUSE from 12.1 upto 13.1 and worked great. I have just upgraded to 13.2 and Nagios will no longer start. Is there something missing from the openSUSE 13.2 install? Has the product being removed from the distro … I could not find any reference to this. Any help would be appreciated.Source: [WayBack] Nagios Wont start in 13.2
- Icinga nagios – Google Search.
- [WayBack] Bug and Feature Comparison – Development – Icinga Wiki archived at github.com/icinga/wiki-archive
- [WayBack] Icinga vs Nagios | Icinga.
- [WayBack] Icinga | Open Source Monitoring.
- [WayBack] Icinga – Wikipedia, the free encyclopedia.
- Icinga android app – Google Search.
- [WayBack] Mobile App | Icinga.
- [WayBack] TiNag Icinga Clients for Android | Icinga.
- [WayBack] Icinga on Android Thanks to aNag | Icinga.
- [WayBack] Icinga + Android = IcingaDroid | Icinga.
- [WayBack] uNagi Icinga Client for Android | Icinga
- [WayBack] uNagi – Nagios and Icinga client for android platform – Application overview.
- Nagios Android apps
- “No provider of ‘nagios’ found.” – Google Search.
- nagios site:forums.opensuse.org – Google Search.
- [defunct] Show server:monitoring / nagios – openSUSE Build Service.
- [WayBack] Users of nagios (Project server:monitoring) – openSUSE Build Service.
Non-stable repos:
- [defunct] software.opensuse.org: Install package home:gerritbeine / nagios-plugins-smart.
- [WayBack] software.opensuse.org: Install package server:monitoring / nagios-rpm-macros.
- [WayBack] software.opensuse.org: Install package server:monitoring / nagios.
–jeroen
Share this:
Posted in *nix, Linux, Monitoring, Nagios, openSuSE, Power User, SuSE Linux, Tumbleweed | Leave a Comment »
listing files with ISO 8601 time stamps on *n*x flavours
Posted by jpluimers on 2018/12/05
A (long!) while ago, I wrote about list date with seconds from ls command – Dev Shed that showed how to list the full ISO timestamp (including seconds) of files.
This is an update.
The previous post showed that you could use this statement to list all files with their full ISO timestamps (and therefore get both the seconds and milliseconds) on (open)SuSE Linux, Mac OS X and Cygwin:
ls -l --time-style=full-iso
What Linux and displaying dates in ISO 8601 format… : Little Green Delusions proposes are two solutions to make this more permanent:
alias ls='ls -l --time-style=long-iso'
or edit one of your profile files (he prefers /etc/profile.local, but that is system wide, so I usually prefer ~/.bash_profile) to add this line:
export TIME_STYLE=long-iso
The thing is: I do not always want to have ls -l show ISO 8601 dates. I like the way that ls-l lists timestamps for very old or future files: Read the rest of this entry »
Share this:
Posted in *nix, Linux, openSuSE, Power User, SuSE Linux | Leave a Comment »
how can I free up space on /boot as “openSUSE-2014-462” fails to install on openSUSE 12.3 x86_64
Posted by jpluimers on 2018/11/30
From a long time ago:
[WayBack] how can I free up space on /boot as “openSUSE-2014-462” fails to install on openSUSE 12.3 (x86_64):
Installation of kernel-desktop-3.7.10-1.40.1 failed: (with --nodeps --force) Error: Subprocess failed. Error: RPM failed: installing package kernel-desktop-3.7.10-1.40.1.x86_64 needs 16MB on the /boot filesystem
Based on that thread, I figured out the steps:
Share this:
Posted in *nix, Linux, openSuSE, Power User, SuSE Linux | Leave a Comment »
SSH: Connection Reset by Peer – Server Fault
Posted by jpluimers on 2018/11/22
One occasion I had SSH throw a Connection Reset by Peer on my when was the SD-card of a Raspberry Pi started failing and the ext4 filesystem got mounted in read-only mode.
Then sshd was still listening on port 22, but since it could not write to disk any more, it threw a Connection Reset by Peer to the client.
It was on OpenSuSE Tumbleweed, but would failed just as well using Raspbian.
Lessons learned:
- IoT hardware will fail.
ext4breaks when the hardware breaks.
–jeroen
Reference:
- solaris – SSH: Connection Reset by Peer – Server Fault
- ubuntu – ssh client problem: Connection reset by peer – Server Fault
Share this:
Posted in *nix, *nix-tools, Debian, Development, Hardware Development, IoT Internet of Things, Linux, Network-and-equipment, openSuSE, Power User, Raspberry Pi, Raspbian, SuSE Linux, Tumbleweed | Leave a Comment »
Install on openSUSE / SLES – Zabbix.org
Posted by jpluimers on 2018/10/29
Interesting: [Archive.is] Install on openSUSE / SLES – Zabbix.org is possible and there are packages for this on the OpenSuSE site itself for the various kinds of distributions.
For instance, Tumbleweed is at http://download.opensuse.org/repositories/server:/monitoring/openSUSE_Tumbleweed/
Good introductions on Zabbix are via [WayBack] Stephen Fritz on Systems Engineering: Installing and Configuring Basic Zabbix Functionality on Debian Wheezy who has a [Archive.is] zabbix tag.
Other links are at Welcome to workaround.org – tips around open source and Linux stuff.
And there is www.zabbix.com/documentation
–jeroen
Share this:
Posted in *nix, Linux, openSuSE, Power User, SuSE Linux, Tumbleweed | Leave a Comment »
MotionEyeOS on Odroid C1+ with Logitech USB web cameras
Posted by jpluimers on 2018/10/11
Hopefully I get this to work after fixing
The first part of the fix was to
- re-image the SD card.
- boot
- wait 5 minutes (there is no output on HDMI apart from some flickering and no output on TTY using 115200 bits/second despite trying [WayBack] en:c1_hardware_uart [ODROID Wiki])
The second part is getting the USB web cameras to work.
I’ve got two types, but the label on them doesn’t list their common name, only their P/N sometimes with M/N:
- P/N 860-000049 M/N V-UBC40 (really old USB cameras)
- P/N 860-000334 (new USB camera)
The MotionEyeOS web interface didn’t list any working cameras so I had to do some digging.
Luckily [WayBack] Webcam software and driver support for Windows has a table of part and model numbers combined with product names, so they got revealed them as these:
- P/N 860-000334 = M/N V-U0028 with name HD Pro Webcam C920
- P/N 861225 = M/N V-UBC40 with name Quick Cam Messenger
(which is funny as the P/N on the label is different)
Both are supported by motion according to [WayBack] Logitech < Motion < Foswiki though the Quick Cam Messenger needs [WayBack] Quickcam Messenger & Communicate driver for Linux which I should try to cross-compile one day.
The latter works fine. Below are some settings I used.
Share this:
Posted in *nix, Development, Hardware Development, Linux, Odroid, Power User | Leave a Comment »
Notes on recording audio calls from a Fritz!Box and playing back those captures calls
Posted by jpluimers on 2018/09/28
A while ago, I documented some links for In case I ever need to record calls on my Fritz!Box devices.
By now, I’ve done a bit more investigation: I’ve enabled the call monitor, did some port scans, installed domoticz and got deeper into fritzcap.
Oh and I got packet capturing to work too: Fritz!Box – capture network packets in Wireshark format or ISDN in dtrace format.
A small recap so I don’t forget what I did and what the effects were.
Enabling CallMonitor
[WayBack] Fritzbox – Domoticz showed how to enable the CallMonitor option in your Fritz!Box
- Dial
#96*5*to enable (response “CallMonitor On”) - Dial
#96*4*to disable (response “CallMonitor Off”) - It seems not possible to ask for the current state (enabled/disabled)
- After it is enabled, the TCP port 1012 on your Fritz!Box is available for tools like [WayBack] Domoticz and
fritzcap.
Share this:
Posted in *nix, Fritz!, Fritz!Box, Internet, Linux, openSuSE, Power User, SuSE Linux | Leave a Comment »
Not cool: openSuse Tumbleweed switched DHCP clientID algorithm on Raspberry Pi 3, so now all devices get a non-static DHCP address
Posted by jpluimers on 2018/09/15
Not sure in which changeset this happened, but here is one example:
- old DHCP client ID
1:b8:27:eb:1a:b1:ec - new DHCP client ID
ff:eb:78:a9:4:0:1:0:1:22:6:67:49:b8:27:eb:78:a9:4
The first one was marked static in the DHCP server, which means the Raspberry Pi now did get a different IP address.
This messes up a few places that cannot do proper address resolution.
Anyone who knows where this has changed / is configured?
These did not help finding the cause:
- [WayBack] dhcp – isc dhcpd: how to insert option 61 (client id) into dhcpoffer – Server Fault
- [WayBack] networking – Wrong IP address from DHCP client on Ubuntu 18.04 – Super User
Edit
As commented by Leen below, this is about
Wicked changed its defaults to use this DHCPv6 compatible RFC4361 client-id in favour of the older RFC2132 client-id. However, this has caused some issues with older DHCPv4 servers and existing setups where the client-id stored by the server is used to assign a (static) address. It is recommended to fix this server-side, but still, wicked provides several ways of addressing this issue
So here are some links:
- [WayBack] RFC 4361 – Node-specific Client Identifiers for Dynamic Host Configuration Protocol Version Four (DHCPv4)
- [WayBack] RFC 2132 – DHCP Options and BOOTP Vendor Extensions
- [WayBack] wicked-0.6.47-lp150.1.1.x86_64.rpm 15.0 Download (note “mt” is “Marius Tomaschewski” – Google Search)
2018-02-02 - mt@suse.de - version 0.6.44 - dhcp4: use rfc4361 client-id as new default for ethernet on sle15 (fate#323576). It can be also enabled/disabled in wicked-config(5). - client: fixed broken wicked arp utility command (bsc#1078245) - cleanup: add mising/explicit designated field initializers - pkgconfig: fix to request libnl3 instead of libnl1 - dbus: add missing DBUS_ERROR_FAILED type to a dbus_set_error call and enforce formatting input as string when an extension did not returned any error message. - Removed patch included in the source archive [- 0001-wickedd-explicitly-unbind-slaves-on-deletion.patch]
- [WayBack] Release version-0.6.44: version 0.6.44 · openSUSE/wicked · GitHub
- [WayBack] Commits · openSUSE/wicked · GitHub: version-0.6.44
- [WayBack] FAQ · openSUSE/wicked Wiki · GitHub
- [WayBack] Merge pull request #753 from rtorrero/man-config-rfc4361 · openSUSE/wicked@521d348 · GitHub
- [WayBack] Update man to match new DHCPv4 rfc4361 client-id · openSUSE/wicked@35d913a · GitHub
- [WayBack] Release Notes | SUSE Linux Enterprise Server 15 GA: Wicked: Using RFC 4361 DHCPv4 client-id on Ethernet REPORT BUG#, in which the description of the new RFC 4361 client-id does not match my above observations.
The traditionally used RFC 2132 DHCPv4
client-idon Ethernet is constructed from the hardware type (01for Ethernet) and followed by the hardware address (the MAC address), for example:01:52:54:00:02:c2:67
The RFC 4361
client-idstarts with0xff(instead of the hardware type), followed by the DHCPv6 IAID (the interface-address association ID that describes the interface on the machine), followed by the DHCPv6 DUID (client-idwhich identifies the machine).Using the above hardware type-based and hardware address-based DUID (LLT type used by default), the new RFC 4361 DHCPv4
client-idwould be:- Using the last bytes of the MAC address as the IAID:
ff:00:02:c2:67:00:01:xx:xx:xx:xx:52:54:00:02:c2:67 - When the IAID is a simple incremented number:
ff:00:00:00:01:00:01:xx:xx:xx:xx:52:54:00:02:c2:67
- Using the last bytes of the MAC address as the IAID:
- [WayBack] [Bug 1095111] Release notes should mention Wicked switching to RFC4361
–jeroen
Share this:
Posted in *nix, Hardware Development, Linux, openSuSE, Power User, Raspberry Pi, SuSE Linux, Tumbleweed | 6 Comments »
Some Linux mail solutions
Posted by jpluimers on 2018/09/07
Too bad most of them are very picky to the Linux distributions they run on.
- [WayBack] 3 Awesome Complete Open Source Mail Servers Solutions For Linux and UNIX servers – nixCraft
- [WayBack] Install Modoboa Webmail Python on OpenSUSE 12.3
–jeroen
Share this:
Posted in *nix, Linux, openSuSE, Power User, SuSE Linux | Leave a Comment »
The Wiert Corner - irregular stream of stuff 