Software :: Nagios Not Finding Plugin In Fedora Core 13?
Oct 12, 2010
I am trying to set up Nagios to monitor four machines in my local network. I set up one of the remote machines to use the check_nrpe plugin. When trying to start Nagios it says it cannot find the plugin. I have included a locate for check_nrpe and check_ping (a plugin that IS found). I do not know if the problem is in Fedora, Nagios, or ELBKS (error lies between keyboard and seat). I have checked permissions on the two check_ plugins and they are identical. Here is the terminal log: [root@Linux04 wegemer]# nagios /etc/nagios/nagios.cfg
Nagios Core 3.2.2
Copyright (c) 2009-2010 Nagios Core Development Team and Community Contributors
Copyright (c) 1999-2009 Ethan Galstad
Last Modified: 09-01-2010
License: GPL
How to see the code behind the nagios plugin: Nagios Checker? I opened the folder which i have downloaded. After that where do i have to go to see the codes? Is it in App_Codes?
Obviously Nagios will page out once for each host and service goes down. But, is there a way to configure it to page out once, kind of like "Hey, LOTS of stuff just went down." Rather than 200+ individual pages?
if i would know the terms i could search for it, so bare with my words: i got an old PC, and my ethernet-cables don't fit into its plug (port?). its a little smaller than the usual one. how is it called and what am i looking for (whats the name of the plugs which need to fit, whats the measure. all i could see is male/male and some voodoo stuff like RJ333 <-wrong.
I have created a virtual machine of a system running Fedora Core 4 and I need to upgrade it to Fedora Core 10. Based on what I have read, it iis possible so I started theupgrade process. I get an error message saying that /dev/hda6 (my root paritition does not exist) even though it does.
Does the installer need to read a label from /etc/fstab? I executed tune2fs -L / /dev/hda6 amd ,and added LABEL=/ for the corresponding entry for fstab. but the FEDORA CORE 10 is still giving the same problems for the installation process. Should I upgrade to an intermediate verson like Fedora Core 7 first?
I am in school for my CIS degree and the book I am using this session covers Windows XP and Fedora Core 4. I am having trouble finding & downloading Fedora Core 4. My question is: Is there a big enough difference between Fedora Core 4 and Fedora Core 14 that I would not be able to use 14 instead of 4?
I',m having trouble running the zotero openoffice integration plugin in F13 under the openjdk plugin.It's known top be not working as per The problem lies in some permissions as reported here -fedora-linux/However i want to know if there's any progress on it, since i dont have privilege to install it in my lab computer. Also i found this old bug reportwhich seems to have something done.If anypone has any idea please post, else i think i need to file a new bug report.EDIT: I'd be glad even if someone can guide me to write local policy (.java.policy) to enable the plugin
So we monitor all of our disk space, but only get pages for critical. What we would like to do is have one email sent to our team every month with all the "Warnings" for our disk. I have been searching and haven't found a way to do this. Any suggestions?
i am running gigabyte GA-M68M-S2P and AMD sempron 2.7. the problem is when i try to run dual core. it will boot and run for 2mins then it crashes. single core runs perfect.
I have a command line OCR program called OCR Shop XTR (Vividata corp) that I am using on a system with a 6-core AMD chip. I changed the bios so that the 6-cores were activated, but htop shows me that while the program is running, I am only getting activity on one core (the program maxes out the one core with consistent usage between 97% and 100%).
I have read that many programs are not written to take advantage of multiple core cpu's. However, I am just hoping that there is some way to get this program to take advantage of the extra cores. Does anyone know of a way to invoke programs from the command line which would spread the workload out among additional cores?
Here is the output of uname -a:Linux linux 2.6.37.1-1.2-desktop #1 SMP PREEMPT 2011-02-21 10:34:10 +0100 i686 athlon i386 GNU/LinuxAnd here is the output for one of the cores from cat /proc/cpuinfo:processor : 5
vendor_id : AuthenticAMD cpu family : 16 model : 10 model name : AMD Phenom(tm) II X6 1100T Processor stepping : 0
I have now installed Wheezy on two different hard drives and in each case it seems only one CPU of my dual core CPU computer is recognized. System Monitor, Gkrellm and lscpu show just one when prior to the new install the old Wheezy showed both CPU's. I have put the hard drive into two other computers with dual core CPU's and all show just one CPU.
Interestingly System Profiler and Benchmark (hardinfo?) > Devices > Processors now show a large amount of processor infomation when with the old Wheezy I would only see both CPU's listed and nothing else.
I recently read in a forum that by default the Linux kernel only activates one of two cores in a dual core processor. Searching online gave one option to find out and that was the mpstat command. I therefore ran the command and got the following output.As the result says, it shows only 1 cpu. I was wondering what I could do to activate both cores in my machine, and whether doing so was going to cause me any problems.
Assume someone bind a particular process to a particular CPU core(In multi core machine) by using sched_setaffinity() like functions. Then how we can get that process running core id and CPU core utilisation of that process on that running CPU core(Pragmatically or by a Linux command)?.
I've a program that launches new processes, and wait for them to die before it exits. So, for example, my program is a process, and it launches 3 more processes, and when the 3 child processes end, it will exit.
As you see, at end of the example, the program used a total number of 4 processes.
1 - Now, I'm running this program in a CPU with 4 cores. This means that the program used each core for each process?
I have installed nagios 3.2.2. I want to check the cpu and disk temperature. I have installed check_lm_sensors y check_sensors. If I execute check_lm_sensors -v and then I ask for sda it works. The problem is that if I want to ask for the temperature of cpu or revolutions of fans. I have tried to put "cpu Temp', cpu cpu0 but neither of them works. What are the correct names? With check_sensors I only obtain a message "sensor ok".
I'm trying to setup nagios, and I've looked at several guides but none of them seem to address my problem.Here's the clearest guide that I followed URl...I followed all the instructions on that basica guide, except disabling SELinux. I changed SELinux rules based on URL...I'm not getting any AVC Denials, so that's not the problem. Nagios and Apache both start fine. If I go to my local IP, I get the standard Apache test page. URl...(address from all the guides I read) doesn't resolve.I know that Nagios is at least running from "service nagios status," and I have gotten two alerts emailed to me: swap alert (I don't have swap configured) and disk space.
I want to generate core dump files from my program when it crashes. Its a pretty big process and has about 10-11 threads in it.I have followed the documentation to enable core dump by setting ulimit to unlimited etc. I quickly tried "A demo program creating a core dump" from the following webpage, which succeeds in Segfault and dumping a core file in the directory that I configured.However, I tried running my original program and caused it to crash. I did this by making calls to kill(), raise() or the same null pointer access as shown in the webpage above. In each case, my program crashed but did not generate a core dump file. Am I missing something?My program is in C++ and my environment is Redhat 9.0 (kernel 2.4.20)
Going through the "Why do I NOT get a core dump?" section on the same webpage as above, I can see two potential problems. One - there are issues with the suid/sgid (bullet # 6). I am not able to change any settings with suid because my system does not contain either /proc/sys/fs/suid_dumpable or /proc/sys/kernel/suid_dumpableTwo, my program has threads in it and the bullet # 8 is the problem.
We have a small cluster of 20 HP systems, all running CentOS 5.3 in an NFS-root environment. Half are quad-socket, quad-core Xeon E7340 @ 2.40GHz (total 16 cores), the other half are 8-socket, quad-core Opteron 8354 (total 32 cores). All systems have a Mellanox Infiniband adapter ("Mellanox Technologies MT25418 [ConnectX VPI PCIe 2.0 2.5GT/s - IB DDR / 10GigE] (rev a0)")
With kernel 2.6.18-128.1.6.el5, infiniband works fine on all systems.
With the update to kernel 2.6.18-164.11.1.el5 (and both types of node running the same NFS-root image), the 16-core Xeons still work fine. Infiniband no longer works on the 32-core Opterons. Specifically, either the ib0 interface fails to appear, or it does appear but when configured with an IP address, doesn't actually work. In either case, loading the IB kernel modules takes a long time, but I haven't instrumented the load script yet to see which module, if any, is at fault. More errors listed below.
However, if I tweak the BIOS of the 32-core systems to reduce the per-socket core count to 2 (so effectively 8-socket, dual-core, down to a total of 16 available cores), Infiniband starts working again. Putting it back to 32-cores makes it fail. Booting the older kernel makes it work again. In summary: old kernel, IB works on all systems. Newer kernel, IB only works on 16-core systems.
Updating the IB firmware from 2.5.0 to 2.7.0 (latest available) doesn't help. I also did a full 'yum update' to make sure that libmlx4, openibd all other associated packages were up-to-date. Doesn't help either.
Some errors that appear on 32-core nodes:
ib_query_port failed (-16) for mlx4_0 ib_query_port failed (-16) for mlx4_0 mlx4_core 0000:04:00.0: SW2HW_MPT failed (-16) mlx4_core 0000:04:00.0: SW2HW_MPT failed (-16)
I don't have permission to access [URL]. I can access [URL] only local. I configured local and network access in /etc/httpd/conf.d/nagios.conf. My access_log: "GET /nagios HTTP/1.1" 403 334 "-" "Mozilla/5.0 (X11;U;Linux i686; en-US; en -US; rv:1.9.1.9) Gecko/2010100330 Fedora/3.5.9-1 fc11 Firefox/3.5.9" "GET /vavicon.ico HTTP/1.1" 404 335 "-" "Mozilla/5.0 X11;U;Linux i686; en-US; en -US; rv:1.9.1.9) Gecko/2010100330 Fedora/3.5.9-1 fc11 Firefox/3.5.9" My error_log: suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
Digest: genarating secret for digest authentication done mod_python: Creating 4 session mutexes based o 150 max processes and 0 max threads mod_python: using mutex_directory /tmp Apache/2.2.15 (Unix) DAV/2 PHP/5.2.13 mod_python/3.3.1 Python/2.6 mod_ssl/2.2.15 OpenSSL/0.9.8n-fips mod_perl/2.0.4 Perl/v5.10.0 configured -- resuming normal operations Permission denied: access to /nagios denied File does not exist: /var/www/html/favicon.ico Directory index forbidden by Option directive: /var/www/html
I did a horrible mistake due to lapse in my concentration. Here is the 80 GB IDE disk geometry:
=> C: Windows XP SP2 15 GB partition => D: NTFS parition - 10 GB => E:F:G:H: NTFS partitions on the Windows Extended partition. => On the same Extended partition, there exists Linux /swap and /root partitions.
What happened was:
a) I wanted to delete the H: parition which was residing adjacent to Linux partition b) By mistake I opened the Explorer and clicked the Mouse on H: partition and left it like that (forgot) c) I opened Add/Remove program list but did nothing, to do few uninstalls after partition deletion. d) Now I opened compmgmt.msc for Disk Management then deleted the H: partition!
Then XP reacted strangely and got almost hung
e) Then I switched OFF and ON the PC. f) Most shocking was GRUB screen vanished (crash console appears) which means that Linux partition got deleted instead of H: partition!!
It's important to share with you that Fedora Core 12 possess the default BOOT flag. I thought that it's nothing big deal, only a case of Boot flag toggle with DOS bootable CD but am shell shocked to find after hitting the fdisk from DOS it says Error reading the disk!!! I felt like collapsed for a while, don't know how I did such a mistake. how to boot into my Windows XP. I can't afford to loose data or bear the expense on Data recovery
