Nagios Installation in CentOS is having "Error #2 "

Linux and Unix-Like Linux
1

Hello All,

I was trying to install Nagios on CentOS 6.2 by following the below link and having few errors at the "Install Nagios" section in the website, could you please let me know how to get rid of it and successfully install.

Install Nagios in CentOS CENTREON 6 | Linux Tutorial

I have pasted the link as well as system specifications along with error messages.

[root@nagiospoc nagios-3.2.0]# uname -a
Linux nagiospoc 2.6.32-220.2.1.el6.x86_64 #1 SMP Fri Dec 23 02:21:33 CST 2011 x86_64 x86_64 x86_64 GNU/Linux
[root@nagiospoc nagios-3.2.0]# cat /etc/redhat-release
CentOS release 6.2 (Final)

[root@nagiospoc nagios-3.2.0]# make all
cd ./base && make
make[1]: Entering directory `/root/nagios-3.2.0/base'
gcc -g -O2 -DHAVE_CONFIG_H -DNSCORE -c -o checks.o checks.c
In file included from checks.c:40:
../include/epn_nagios.h:11:20: error: EXTERN.h: No such file or directory
../include/epn_nagios.h:12:18: error: perl.h: No such file or directory
In file included from checks.c:40:
../include/epn_nagios.h:31: error: expected �=�, �,�, �;�, �asm� or �__attribute__� before �void�
checks.c: In function �run_async_service_check�:
checks.c:356: error: �SV� undeclared (first use in this function)
checks.c:356: error: (Each undeclared identifier is reported only once
checks.c:356: error: for each function it appears in.)
checks.c:356: error: �plugin_hndlr_cr� undeclared (first use in this function)
checks.c:357: error: �STRLEN� undeclared (first use in this function)
checks.c:357: error: expected �;� before �n_a�
checks.c:363: error: �dSP� undeclared (first use in this function)
checks.c:557: error: �ENTER� undeclared (first use in this function)
checks.c:558: error: �SAVETMPS� undeclared (first use in this function)
checks.c:559: error: �SP� undeclared (first use in this function)
checks.c:564: error: �PUTBACK� undeclared (first use in this function)
checks.c:568: error: �G_SCALAR� undeclared (first use in this function)
checks.c:568: error: �G_EVAL� undeclared (first use in this function)
checks.c:570: error: �SPAGAIN� undeclared (first use in this function)
checks.c:572: error: �ERRSV� undeclared (first use in this function)
checks.c:581: error: �POPs� undeclared (first use in this function)
checks.c:634: error: �FREETMPS� undeclared (first use in this function)
checks.c:635: error: �LEAVE� undeclared (first use in this function)
checks.c:713: error: �G_ARRAY� undeclared (first use in this function)
checks.c:717: error: �POPpx� undeclared (first use in this function)
checks.c:718: error: �POPi� undeclared (first use in this function)
make[1]: *** [checks.o] Error 1
make[1]: Leaving directory `/root/nagios-3.2.0/base'
make: *** [all] Error 2

Thanks
Saikrishna

2 
rpm -q kernel-smp
rpm -q kernel-source
uname -r

Make sure they have the same version numbers and are installed.

Credit where due: Really, really Weird trouble with make (make error 2)

3

Hey Mark,

Both the rpms are not installed on my machine and will do it right away and get back to you in case of any problems.

[root@nagiospoc nagios-3.2.0]# rpm -q kernel-smp
package kernel-smp is not installed
[root@nagiospoc nagios-3.2.0]# rpm -q kernel-source
package kernel-source is not installed
[root@nagiospoc nagios-3.2.0]# uname -r
2.6.32-220.2.1.el6.x86_64

---------- Post updated at 10:54 AM ---------- Previous update was at 10:00 AM ----------

Hello All,

Tried to look for the rpm from below link and did not find compatible version, please let me know if any of these rpms work?

RPM resource kernel-smp...

4

You should mount the DVD or ISO that you installed from as a yum repository and not do this from random packages (I have not and cannot view your link from work).

Then you can use yum to install the kernel headers that you need.

5

Hi Mark,

Those rpms were not found in the yum repository as well as centOS cd, could you please let me know if there is any similar packages that I can use.

[root@nagiospoc Packages]# yum list | grep kernel
abrt-addon-kerneloops.x86_64 1.1.13-4.el6 @anaconda-CentOS-201106060106.x86_64/6.0
dracut-kernel.noarch 004-32.el6 @anaconda-CentOS-201106060106.x86_64/6.0
kernel.x86_64 2.6.32-71.el6 @anaconda-CentOS-201106060106.x86_64/6.0
kernel-firmware.noarch 2.6.32-71.el6 @anaconda-CentOS-201106060106.x86_64/6.0
kernel-headers.x86_64 2.6.32-220.2.1.el6 @updates
abrt-addon-kerneloops.x86_64 2.0.4-14.el6.centos base
dracut-kernel.noarch 004-256.el6 base
kernel.x86_64 2.6.32-220.2.1.el6 updates
kernel-debug.x86_64 2.6.32-220.2.1.el6 updates
kernel-debug-devel.x86_64 2.6.32-220.2.1.el6 updates
kernel-devel.x86_64 2.6.32-220.2.1.el6 updates
kernel-doc.noarch 2.6.32-220.2.1.el6 updates
kernel-firmware.noarch 2.6.32-220.2.1.el6 updates
libreport-plugin-kerneloops.x86_64 2.0.5-20.el6 base

[root@nagiospoc Packages]# pwd
/mnt/Packages
[root@nagiospoc Packages]# ls -ltr | grep kernel
-rw-r--r-- 2 deploy deploy 61352 Jul 3 2011 abrt-addon-kerneloops-1.1.13-4.el6.x86_64.rpm
-rw-r--r-- 2 deploy deploy 14936 Jul 3 2011 dracut-kernel-004-32.el6.noarch.rpm
-rw-r--r-- 2 deploy deploy 8807112 Jul 3 2011 kernel-doc-2.6.32-71.el6.noarch.rpm
-rw-r--r-- 2 deploy deploy 1181760 Jul 3 2011 kernel-firmware-2.6.32-71.el6.noarch.rpm
-rw-r--r-- 2 deploy deploy 23430964 Jul 3 2011 kernel-2.6.32-71.el6.x86_64.rpm
-rw-r--r-- 2 deploy deploy 23459212 Jul 3 2011 kernel-debug-2.6.32-71.el6.x86_64.rpm
-rw-r--r-- 2 deploy deploy 6769584 Jul 3 2011 kernel-debug-devel-2.6.32-71.el6.x86_64.rpm
-rw-r--r-- 2 deploy deploy 6731308 Jul 3 2011 kernel-devel-2.6.32-71.el6.x86_64.rpm
-rw-r--r-- 2 deploy deploy 988588 Jul 3 2011 kernel-headers-2.6.32-71.el6.x86_64.rpm

6

You should use:

kernel-2.6.32-71.el6.x86_64.rpm
kernel-devel-2.6.32-71.el6.x86_64.rpm
kernel-headers-2.6.32-71.el6.x86_64.rpm

7

hey Mark,

Tried to install the rpms but having below errors. Even after installation of rpm it says rpm not installed.

Only "kernel-devel-2.6.32-71.el6.x86_64.rpm" was successful, I have copied the iso image and mounted on host and installed from there.

[root@nagiospoc Packages]# yum install /mnt/Packages/kernel-2.6.32-71.el6.x86_64.rpm
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile

  • base: mirror.raystedman.net
  • extras: centos.mirror.lstn.net
  • updates: mirror.team-cymru.org
    Setting up Install Process
    Examining /mnt/Packages/kernel-2.6.32-71.el6.x86_64.rpm: kernel-2.6.32-71.el6.x86_64
    /mnt/Packages/kernel-2.6.32-71.el6.x86_64.rpm: does not update installed package.
    Error: Nothing to do
    [root@nagiospoc Packages]# rpm -ivh /mnt/Packages/kernel-2.6.32-71.el6.x86_64.rpm
    Preparing... ########################################### [100%]
    package kernel-2.6.32-71.el6.x86_64 is already installed
    [root@nagiospoc Packages]# hostname
    nagiospoc
    [root@nagiospoc Packages]# yum install /mnt/Packages/kernel-devel-2.6.32-71.el6.x86_64.rpm
    Loaded plugins: fastestmirror
    Loading mirror speeds from cached hostfile
  • base: mirror.raystedman.net
  • extras: centos.mirror.lstn.net
  • updates: mirror.team-cymru.org
    Setting up Install Process
    Examining /mnt/Packages/kernel-devel-2.6.32-71.el6.x86_64.rpm: kernel-devel-2.6.32-71.el6.x86_64
    Marking /mnt/Packages/kernel-devel-2.6.32-71.el6.x86_64.rpm to be installed
    Resolving Dependencies
    --> Running transaction check
    ---> Package kernel-devel.x86_64 0:2.6.32-71.el6 set to be installed
    --> Finished Dependency Resolution

Dependencies Resolved

================================================================================================
Package Arch Version Repository Size

Installing:
kernel-devel x86_64 2.6.32-71.el6 /kernel-devel-2.6.32-71.el6.x86_64 22 M

Transaction Summary

Install 1 Package(s)
Upgrade 0 Package(s)

Total size: 22 M
Installed size: 22 M
Is this ok [y/N]: y
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : kernel-devel-2.6.32-71.el6.x86_64 1/1

Installed:
kernel-devel.x86_64 0:2.6.32-71.el6

Complete!
[root@nagiospoc Packages]# yum install /mnt/Packages/kernel-headers-2.6.32-71.el6.x86_64.rpm
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile

  • base: mirror.raystedman.net
  • extras: centos.mirror.lstn.net
  • updates: mirror.team-cymru.org
    Setting up Install Process
    Examining /mnt/Packages/kernel-headers-2.6.32-71.el6.x86_64.rpm: kernel-headers-2.6.32-71.el6.x86_64
    /mnt/Packages/kernel-headers-2.6.32-71.el6.x86_64.rpm: does not update installed package.
    Error: Nothing to do
    [root@nagiospoc Packages]# yum install /mnt/Packages/kernel-2.6.32-71.el6.x86_64.rpm
    Loaded plugins: fastestmirror
    Loading mirror speeds from cached hostfile
  • base: mirror.raystedman.net
  • extras: centos.mirror.lstn.net
  • updates: mirror.team-cymru.org
    Setting up Install Process
    Examining /mnt/Packages/kernel-2.6.32-71.el6.x86_64.rpm: kernel-2.6.32-71.el6.x86_64
    /mnt/Packages/kernel-2.6.32-71.el6.x86_64.rpm: does not update installed package.
    Error: Nothing to do
    [root@nagiospoc Packages]# rpm -ivh /mnt/Packages/kernel-headers-2.6.32-71.el6.x86_64.rpm
    Preparing... ########################################### [100%]
    package kernel-headers-2.6.32-220.2.1.el6.x86_64 (which is newer than kernel-headers-2.6.32-71.el6.x86_64) is already installed
    file /usr/include/asm-generic/errno.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/fcntl.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/asm-generic/statfs.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/termios.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/asm-generic/unistd.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/asm/e820.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/asm/kvm.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/kvm.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/asm/msr-index.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/asm/processor-flags.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/asm/unistd_32.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/asm/unistd_64.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/drm/drm.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/drm/drm_mode.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/drm/i915_drm.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/drm/mga_drm.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/drm/nouveau_drm.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/drm/radeon_drm.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/drm/savage_drm.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/drm/via_drm.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/audit.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/auto_fs4.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/blktrace_api.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/netlink.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/dcbnl.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/dlm.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/dlm_plock.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/dm-ioctl.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/dm-log-userspace.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/dqblk_xfs.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/dvb/frontend.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/net.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/dvb/version.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/version.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/elf.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/ethtool.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/fb.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/fs.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/gfs2_ondisk.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/if.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/if_bonding.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/if_ether.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/if_link.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/if_packet.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/if_tun.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/in6.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/input.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/ivtvfb.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/kernel.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/magic.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/mempolicy.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/netfilter.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/netfilter/nfnetlink.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/netfilter/xt_TPROXY.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/nfs4.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/nfs_fs.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/nfs_mount.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/oom.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/pci_regs.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/perf_event.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/random.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/rtnetlink.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/signalfd.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/tcp.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/usb/ch9.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/videodev2.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/virtio_blk.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/virtio_net.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64
    file /usr/include/linux/virtio_ring.h from install of kernel-headers-2.6.32-71.el6.x86_64 conflicts with file from package kernel-headers-2.6.32-220.2.1.el6.x86_64

[root@nagiospoc Packages]# rpm -q kernel-2.6.32-71.el6.x86_64.rpm
package kernel-2.6.32-71.el6.x86_64.rpm is not installed
[root@nagiospoc Packages]# rpm -q kernel-devel-2.6.32-71.el6.x86_64.rpm
package kernel-devel-2.6.32-71.el6.x86_64.rpm is not installed
[root@nagiospoc Packages]# rpm -q kernel-headers-2.6.32-71.el6.x86_64.rpm
package kernel-headers-2.6.32-71.el6.x86_64.rpm is not installed

8

The kernel you have is not the one from the DVD. If you have updated via an online repository then you should just use yum to install it from that repository. Don't specify a version

yum install kernel-headers
yum install kernel-devel

You still don't have the required RPMs.

9

Hey Mark,

I finally did install Nagios 3.2.3 on CentOS release 5.7 (Final) with the default config files and added 1 host to it and it is sending "Service Alert: CentOS 5/HTTP is WARNING" frequently, how do you fix this one? what are the additional files that need to be added so that I can monitor the diskspace, desired processes, network interfaces, users, load, cpu usage etc. Are there any additional files that need to be edited?

Thanks
Saikrishna

10

At this point, you are no longer asking how to install Nagios, but how to use it. Perhaps a class or a book would be better. Implementing a monitoring system you know nothing about does you no good.

11

This a POC Mark and an entirely new build completely isolated from existing network and we have just the DEV machines at the moment, eventually we will get to SIT/STAGING & PROD I haven't built Nagios prior to this and need to know what are the files that need to be taken care of.

Thanks
Saikrishna

12

Hello Mark,

I have installed nagios and added 12 hosts as a start and monitoring few details on them, how do I send false alerts and check if they are being reported through nagios server?

Also, Nagios seems to be sending false alerts about few hosts, (ex: There were no users on one host and still Nagios was reporting a critical alert and says 6 users are logged in.

Thanks
Saikrishna

13

I can repeat myself, but I do not think that will do any good. Please go find a book on Nagios. I do not run Nagios. Your original question was regarding how to install an application.

Find more information on Nagios from their website or one of dozens of good books on amazon.

This tool is way too large and encompassing for you to come ask every possible question in this thread.