Please help me in configuring Nagios

[rags]

Hi Teams,

I had followed the below steps to configure nagios

1) Prerequisites
After installing your CentOS/RHEL server, you have to install dependent packages to make nagios work.
yum install httpd php gcc glibc glibc-common gd gd-devel openssl-devel
2) Create nagios user and group by which we will be installing nagios
useradd -m nagios
passwd nagios
groupadd nagcmd
usermod -a -G nagcmd nagios
usermod -a -G nagcmd apache
3) Installation
a) Create a directory where you would download nagios software:

mkdir /opt/nagios
cd /opt/nagios
b) Download nagios-core package/Untar/Compile and Install all necessary files for Nagios:

wget http://sourceforge.net/projects/nagios/ ... ta1.tar.gz
tar -xzvf nagios-4.0.0-beta1.tar.gz
cd nagios
./configure --with-command-group=nagcmd --with-httpd-conf=/etc/httpd/conf.d --with-init-dir=/etc/init.d/
make all
make install
make install-init
make install-commandmode
make install-config
make install-webconf
make install-exfoliation
Note: By default nagios install itself in /usr/local/nagios
c) Create a password to log into the web interface:

htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin
d) Restart the httpd server:

service httpd restart
e) Now we have to make nagios service to start automatically on boot using chkconfig:

chkconfig --add nagios
chkconfig nagios on
f) Verify if you have a good config of nagios with the command:

/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
g) Check if there are no errors displayed; then start nagios with command:

service nagios start
h) Now, we have to Download/Untar/Compile and Install all necessary files for Nagios-Plugin:

cd /opt/nagios
wget http://prdownloads.sourceforge.net/sour ... .16.tar.gz
cd nagios-plugins-1.4.16
./configure --with-nagios-user=nagios --with-nagios-group=nagios
make
make install

i) service iptables stop


But when i try to open the ngios via the browser, i am getting 404 error. Please help me in resolving the issue.
Thanks in advance.

Please let me know if you require more details.

[slansing]

Can you try to access the web interface while running:

Code: Select all

tail -f /var/log/httpd/error_log

And share the output here?

Do you have any other web based applications running on this server?