{"id":10,"date":"2010-07-17T14:15:58","date_gmt":"2010-07-17T08:45:58","guid":{"rendered":"http:\/\/atuljha.com\/blog\/?p=10"},"modified":"2010-07-18T01:56:51","modified_gmt":"2010-07-17T20:26:51","slug":"installingcompiling-nagios03-on-rhel5","status":"publish","type":"post","link":"https:\/\/atuljha.com\/blog\/2010\/07\/17\/installingcompiling-nagios03-on-rhel5\/","title":{"rendered":"Installing\/Compiling Nagios03 on rhel5"},"content":{"rendered":"
Okey i been planning to do this long back.on rhel5 box here is a simple<\/strong><\/div>\n
guide i have made which lets you compile nagio3 from source and install<\/strong><\/div>\n
in RHEL5 box.<\/strong><\/div>\n
Make sure you have these packages installed:–<\/div>\n
1.Apache<\/div>\n
2. GCC compiler<\/div>\n
3.GD development libraries<\/div>\n
You can use “yum” to install these packages by running the following<\/div>\n
commands (as root<\/strong>):<\/div>\n
yum install httpd gcc glibc glibc-common gd gd-devel<\/em><\/div>\n
Create a new nagios user account and give it a password.<\/div>\n
\/usr\/sbin\/useradd -m nagios<\/em><\/div>\n
passwd nagios<\/em><\/div>\n
Create a new nagcmd group for allowing external commands to be submitted<\/div>\n
through the web interface.<\/div>\n
Add both the nagios user and the apache user to the group.<\/div>\n
\/usr\/sbin\/groupadd nagcmd<\/em><\/div>\n
\/usr\/sbin\/usermod -a -G nagcmd nagios<\/em><\/div>\n
\/usr\/sbin\/usermod -a -G nagcmd apache<\/em><\/div>\n
2) Download Nagios and the Plugins Create a directory for storing the\u00a0downloads.<\/div>\n
mkdir ~\/downloads<\/div>\n
cd ~\/downloads<\/div>\n
Download the source code tarballs of both Nagios and the Nagios plugins\u00a0(visit http:\/\/www.nagios.org\/download\/ for links to the latest\u00a0versions).<\/div>\n
wget\u00a0http:\/\/sourceforge.net\/projects\/nagios\/files\/nagios-3.x\/nagios-3.2.1\/nagios-3.2.1.tar.gz\/download<\/em><\/div>\n
wget\u00a0http:\/\/sourceforge.net\/projects\/nagiosplug\/files\/nagiosplug\/1.4.14\/nagios-plugins-1.4.14.tar.gz\/download<\/em><\/div>\n
3) Compile and Install Nagios Extract the Nagios source code tarball.<\/div>\n
cd ~\/downloads tar xzf nagios-3.2.1tar.gz <\/em><\/div>\n
cd nagios-3.2.1<\/em><\/div>\n
Run the Nagios configure script, passing the name of the group you\u00a0created earlier like so:<\/div>\n
.\/configure –with-command-group=nagcmd<\/em><\/div>\n

\n<\/em><\/div>\n
Compile the Nagios source code. make all Install binaries, init script,\u00a0sample config files and set permissions on the external command\u00a0directory.<\/div>\n
make install<\/em><\/div>\n
make install-init<\/em><\/div>\n
make install-config<\/em><\/div>\n
make install-commandmode<\/em><\/div>\n
Don’t start Nagios yet – there’s still more that needs to be done…<\/div>\n
4) Customize Configuration Sample configuration files have now been\u00a0installed in the \/usr\/local\/nagios\/etc directory. These sample files\u00a0should work fine for getting started with Nagios. You’ll need to make\u00a0just one change before you proceed…<\/div>\n
Edit the \/usr\/local\/nagios\/etc\/objects\/contacts.cfg config<\/em> file with\u00a0your favorite editor and change the email address associated with the\u00a0nagiosadmin contact definition to the address you’d like to use for\u00a0receiving alerts.<\/div>\n
vi \/usr\/local\/nagios\/etc\/objects\/contacts.cfg<\/em><\/div>\n
5) Configure the Web Interface Install the Nagios web config file in the\u00a0Apache conf.d directory. make install-webconf<\/div>\n
Create a nagiosadmin\u00a0account for logging into the Nagios web interface.\u00a0Remember the password you assign to this account – you’ll need it later.<\/div>\n
htpasswd -c \/usr\/local\/nagios\/etc\/htpasswd<\/em><\/div>\n
users nagiosadmin Restart Apache to make the new settings take effect.<\/div>\n
service httpd restart<\/em><\/div>\n
Implementing Digest Authentication <\/strong><\/div>\n
The implementation of Digest\u00a0Authentication is simple. You will have to create the new type of\u00a0password file using the ‘htdigest’ tool, then modify the Apache\u00a0configuration for nagios (typically \/etc\/httpd\/conf.d\/nagios.conf).<\/div>\n
Create a new passwords file using the ‘htdigest’ tool.\u00a0The difference that you will notice if you are familiar with ‘htpasswd’<\/div>\n
tools is the requirement to supply a ‘realm’ argument. Where ‘realm’ in\u00a0this case refers to the value of the ‘AuthName’ directive in the Apache\u00a0configuration.<\/div>\n
htdigest -c \/usr\/local\/nagios\/etc\/.digest_pw “Nagios<\/em><\/div>\n
Access” nagiosadmin Next, edit the Apache configuration file for Nagios(typically \/etc\/httpd\/conf.d\/nagios.conf) using the following example.<\/div>\n
## BEGIN APACHE CONFIG SNIPPET – NAGIOS.CONF ScriptAlias \/nagios\/cgi-bin<\/div>\n
“\/usr\/local\/nagios\/sbin”<\/div>\n
Options ExecCGI AllowOverride None Order allow,deny Allow from all<\/div>\n
AuthType Digest AuthName “Nagios Access” AuthUserFile<\/div>\n
\/usr\/local\/nagios\/etc\/.digest_pw Require valid-user Alias \/nagios<\/div>\n
“\/usr\/local\/nagios\/share” Options None AllowOverride None Order<\/div>\n
allow,deny Allow from all AuthType Digest AuthName “Nagios Access”<\/div>\n
AuthUserFile \/usr\/local\/nagios\/etc\/.digest_pw Require valid-user<\/div>\n
## END APACHE CONFIG SNIPPETS<\/div>\n
Then, restart the Apache service so the new settings can take effect.<\/div>\n
\/etc\/init.d\/httpd restart<\/em><\/div>\n
6) Compile and Install the Nagios Plugins Extract the Nagios plugins\u00a0source code tarball.<\/div>\n
cd ~\/downloads tar xzf nagios-plugins-1.4.14.tar.gz<\/em><\/div>\n
cd nagios-plugins-1.4.14<\/em><\/div>\n
Compile and install the plugins.<\/em><\/div>\n
.\/configure –with-nagios-user=nagios –with-nagios-group=nagios<\/em><\/div>\n
make<\/em><\/div>\n
make install<\/em><\/div>\n
7) Start Nagios Add Nagios to the list of system services and have it\u00a0automatically start when the system boots.<\/div>\n
chkconfig –add nagios<\/em><\/div>\n
chkconfig nagios on<\/em><\/div>\n
Verify the sample Nagios configuration files.<\/div>\n
\/usr\/local\/nagios\/bin\/nagios -v \/usr\/local\/nagios\/etc\/nagios.cfg<\/em><\/div>\n
If there are no errors, start Nagios.<\/div>\n
service nagios start<\/em><\/div>\n
9) Login to the Web Interface You should now be able to access the \u00a0Nagios web interface at the URL below. You’ll be prompted for the\u00a0username (nagiosadmin) and password you specified earlier.<\/div>\n
http:\/\/localhost\/nagios\/<\/em><\/div>\n
Click on the “Service Detail” navbar link to see details of what’s being\u00a0monitored on your local machine.<\/div>\n
It will take a few minutes for Nagios to check all the services \u00a0associated with your machine, as the checks are spread out over time.<\/div>\n
refernce :– nagios manual<\/div>\n","protected":false},"excerpt":{"rendered":"

Okey i been planning to do this long back.on rhel5 box here is a simple guide i have made which lets you compile nagio3 from source and install in RHEL5 box. Make sure you have these packages installed:– 1.Apache 2. GCC compiler 3.GD development libraries You can use “yum” to install these packages by running … <\/p>\n

Continue reading “Installing\/Compiling Nagios03 on rhel5”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"_links":{"self":[{"href":"https:\/\/atuljha.com\/blog\/wp-json\/wp\/v2\/posts\/10"}],"collection":[{"href":"https:\/\/atuljha.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/atuljha.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/atuljha.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/atuljha.com\/blog\/wp-json\/wp\/v2\/comments?post=10"}],"version-history":[{"count":8,"href":"https:\/\/atuljha.com\/blog\/wp-json\/wp\/v2\/posts\/10\/revisions"}],"predecessor-version":[{"id":33,"href":"https:\/\/atuljha.com\/blog\/wp-json\/wp\/v2\/posts\/10\/revisions\/33"}],"wp:attachment":[{"href":"https:\/\/atuljha.com\/blog\/wp-json\/wp\/v2\/media?parent=10"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/atuljha.com\/blog\/wp-json\/wp\/v2\/categories?post=10"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/atuljha.com\/blog\/wp-json\/wp\/v2\/tags?post=10"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}