------------------
Download OP5
------------------
op5-monitor-6.2.0.1-20131024.tar.gz
[http://www.op5.com/download-op5-monitor/]
------------------
Query RPM Package
------------------
Det finns två rpm i denna tar boll
# ll *nrpe*
-rw-rw-r--. 1 500 500 23068 Oct 24 10:17 nrpe-2.13.3-op5.1.x86_64.rpm
-rw-rw-r--. 1 500 500 11992 Oct 24 10:17 nrpe-client-2.13.3-op5.1.x86_64.rpm
Filer som RPM innehåller
# rpm -qpl nrpe-2.13.3-op5.1.x86_64.rpm
warning: nrpe-2.13.3-op5.1.x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID f6e3ade7: NOKEY
/etc/init.d/nrpe
/etc/nrpe.conf
/etc/nrpe.d
/etc/nrpe.d/op5_commands.cfg
/usr/sbin/nrpe
RPM Dependency/Requires [-R,--requires]
# rpm -qpR nrpe-2.13.3-op5.1.x86_64.rpm
warning: nrpe-2.13.3-op5.1.x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID f6e3ade7: NOKEY
/bin/sh
/bin/sh
config(nrpe) = 2.13.3-op5.1
libc.so.6()(64bit)
libc.so.6(GLIBC_2.2.5)(64bit)
libc.so.6(GLIBC_2.3)(64bit)
libc.so.6(GLIBC_2.3.4)(64bit)
libc.so.6(GLIBC_2.4)(64bit)
libcrypto.so.10()(64bit)
libnsl.so.1()(64bit)
libssl.so.10()(64bit)
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
rpmlib(VersionedDependencies) <= 3.0.3-1
rtld(GNU_HASH)
rpmlib(PayloadIsXz) <= 5.2-1
RPM installation scripts
# rpm -qp --scripts nrpe-2.13.3-op5.1.x86_64.rpm
warning: nrpe-2.13.3-op5.1.x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID f6e3ade7: NOKEY
postinstall scriptlet (using /bin/sh):
/sbin/chkconfig --add nrpe || :
/sbin/service nrpe stop || :
/sbin/service nrpe start || :
# Move command definitions to 'include_dir' if upgrading
if [ $1 -eq 2 ]; then
grep -q '^command\[' /etc/nrpe.conf || :
if [ $? -eq 0 ]; then
echo "" >> /etc/nrpe.d/op5_commands.cfg
echo "# Imported from /etc/nrpe.cfg" >> /etc/nrpe.d/op5_commands.cfg
grep '^command\[' /etc/nrpe.conf >> /etc/nrpe.d/op5_commands.cfg || :
sed '/^[\#]\?[ tab]\?command\[\[*/d' -i /etc/nrpe.conf || :
echo "" >> /etc/nrpe.conf
echo "# NOTE!" >> /etc/nrpe.conf
echo "# Command definitions have meed moved to 'include_dir'." >> /etc/nrpe.conf
echo "# Any commands defined in this file will be moved by future upgrades." >> /etc/nrpe.conf
echo "" >> /etc/nrpe.conf
fi
grep -q '^include_dir' /etc/nrpe.conf || :
if [ $? -ne 0 ]; then
echo "# In order to make remote config with conf_nrpe work, you need to" >> /etc/nrpe.conf
echo "# create the following directory. It needs to be read/writeable by" >> /etc/nrpe.conf
echo "# nrpe_user specified above. " >> /etc/nrpe.conf
echo "# All command definitions should be placed in the 'include_dir'" >> /etc/nrpe.conf
echo "# NOTE: files in 'include_dir' must have a '.cfg' suffix." >> /etc/nrpe.conf
echo "include_dir=/etc/nrpe.d" >> /etc/nrpe.conf
fi
fi
------------------
NRPE RPM Installation
------------------
# rpm -ipvh nrpe-2.13.3-op5.1.x86_64.rpm
warning: nrpe-2.13.3-op5.1.x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID f6e3ade7: NOKEY
Preparing... ########################################### [100%]
1:nrpe ########################################### [100%]
nrpe doesn't seem to be running.
Starting nrpe in daemon mode ... done
Check process
# ps auxZ | grep nrpe
unconfined_u:system_r:nrpe_t:s0 nobody 1271 0.0 0.0 39364 1364 ? Ss 13:27 0:00 /usr/sbin/nrpe -c /etc/nrpe.conf -d
unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 root 1274 0.0 0.0 103244 832 pts/0 S+ 13:27 0:00 grep nrpe
------------------
NRPE RPM Configuration
------------------
# vi /etc/nrpe.conf
...
allowed_hosts=127.0.0.1,192.168.122.93
...
Restart NRPE to let configuration changes take effect
# service nrpe restart
------------------
Test NRPE Installation
------------------
From server
# /usr/lib64/nagios/plugins/check_nrpe -H 192.168.122.12
NRPE v2.13
------------------
Plugin RPM Installation
------------------
# cat /etc/nrpe.d/op5_commands.cfg
################################################################################
#
# op5-nrpe command configuration file
#
# COMMAND DEFINITIONS
# Syntax:
# command[<command_name>]=<command_line>
#
command[users]=/opt/plugins/check_users -w 5 -c 10
...
# ll *plugins*
-rw-rw-r--. 1 500 500 417248 Oct 24 10:17 plugins-community-2.8.5-op5.1.x86_64.rpm
-rw-rw-r--. 1 500 500 47920 Oct 24 10:17 plugins-metadata-2.8.7-op5.1.x86_64.rpm
-rw-rw-r--. 1 500 500 594020 Oct 24 10:17 plugins-nagios-2.6.5.1-op5.1.x86_64.rpm
-rw-rw-r--. 1 500 500 94088 Oct 24 10:17 plugins-nagios-local-2.6.5.1-op5.1.x86_64.rpm
-rw-rw-r--. 1 500 500 3160 Oct 24 10:17 plugins-op5-3.0.0-op5.1.el6.x86_64.rpm
# rpm -qpl plugins-community-2.8.5-op5.1.x86_64.rpm | grep check_users
warning: plugins-community-2.8.5-op5.1.x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID f6e3ade7: NOKEY
# rpm -qpl plugins-nagios-2.6.5.1-op5.1.x86_64.rpm | grep check_users
warning: plugins-nagios-2.6.5.1-op5.1.x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID f6e3ade7: NOKEY
# rpm -qpl plugins-nagios-local-2.6.5.1-op5.1.x86_64.rpm | grep check_users
warning: plugins-nagios-local-2.6.5.1-op5.1.x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID f6e3ade7: NOKEY
/opt/plugins/check_users
# rpm -qpl plugins-op5-3.0.0-op5.1.el6.x86_64.rpm | grep check_users
warning: plugins-op5-3.0.0-op5.1.el6.x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID f6e3ade7: NOKEY
# rpm -ipvh plugins-nagios-local-2.6.5.1-op5.1.x86_64.rpm
warning: plugins-nagios-local-2.6.5.1-op5.1.x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID f6e3ade7: NOKEY
error: Failed dependencies:
perl(Exporter) is needed by plugins-nagios-local-2.6.5.1-op5.1.x86_64
# rpm -qpR plugins-nagios-local-2.6.5.1-op5.1.x86_64.rpm
warning: plugins-nagios-local-2.6.5.1-op5.1.x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID f6e3ade7: NOKEY
/bin/sh
libc.so.6()(64bit)
libc.so.6(GLIBC_2.2.5)(64bit)
libc.so.6(GLIBC_2.3)(64bit)
libc.so.6(GLIBC_2.3.4)(64bit)
libc.so.6(GLIBC_2.4)(64bit)
libc.so.6(GLIBC_2.8)(64bit)
libdl.so.2()(64bit)
libm.so.6()(64bit)
libm.so.6(GLIBC_2.2.5)(64bit)
libpthread.so.0()(64bit)
libpthread.so.0(GLIBC_2.2.5)(64bit)
perl(Exporter)
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
rtld(GNU_HASH)
rpmlib(PayloadIsXz) <= 5.2-1
Måste installera perl
# rpm -q --provides perl | grep Exporter
perl(Exporter) = 5.63
perl(Exporter::Heavy)
-----------------------
Troubleshooting
-----------------------
# less /var/log/messages
...
nrpe[2703]: Error: Could not complete SSL handshake. 1
...
Från server enbart testa NRPE kommunikationen, genom att anropa NRPE utan kommando
# /usr/lib64/nagios/plugins/check_nrpe -H 192.168.122.12
NRPE v2.13
------------------
Plugin SELinux Problems
------------------
plugins does not seem to work with SELinux
On client set SELinux to Permissive
# setenforce 0
Double check that audit deamon is installed and running
# service auditd status
auditd (pid 983) is running...
sealert:
yum install setroubleshoot-server
semanage:
audit2allow:
yum install policycoreutils-python
December 8, 2017
op5
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