How To Install “Log.io” Monitoring Tool in Linux

To Install Node.js and NPM Packages

Node.js is a Javascript that creates network applications with backend functionality. NPM is the package manager for Node.js. Run the following command to install Node.js and NPM.

[root@linuxhelp Desktop]# yum install npm nodejs
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
* base: centos.excellmedia.net
* epel: epel.mirror.net.in
* extras: centos.excellmedia.net
* updates: centos.excellmedia.net
Resolving Dependencies
-->  Running transaction check
--->  Package nodejs.x86_64 0:0.10.42-4.el7 will be installed
--->  Package npm.noarch 0:1.3.6-5.el7 will be installed
.
.
.
nodejs-slide.noarch 0:1.1.5-1.el7
nodejs-sntp.noarch 0:0.2.4-1.el7
nodejs-tar.noarch 0:0.1.18-1.el7
nodejs-tunnel-agent.noarch 0:0.3.0-1.el7
nodejs-uid-number.noarch 0:0.0.3-7.el7
nodejs-which.noarch 0:1.0.5-8.el7

Complete!

To Install and Configure Log.io Application

Login with root account and install Log.io application by using the following command.

[root@linuxhelp Desktop]# npm install -g log.io --user " root" 
npm http GET https://registry.npmjs.org/log.io
npm http 304 https://registry.npmjs.org/log.io
npm http GET https://registry.npmjs.org/backbone
npm http GET https://registry.npmjs.org/jquery-browserify
npm http GET https://registry.npmjs.org/socket.io
npm http GET https://registry.npmjs.org/socket.io-client
.
.
.
.
log.io@0.3.4 /usr/lib/node_modules/log.io
??? backbone@0.9.10
??? underscore@1.4.4
??? coffee-script@1.4.0
??? jquery-browserify@1.8.1
??? winston@0.6.2 (cycle@1.0.3, stack-trace@0.0.9, eyes@0.1.8, colors@0.6.2, pkginfo@0.2.3, async@0.1.22, request@2.9.203)
??? express@3.0.6 (methods@0.0.1, fresh@0.1.0, range-parser@0.0.4, cookie-signature@0.0.1, buffer-crc32@0.1.1, cookie@0.0.5, commander@0.6.1, mkdirp@0.3.3, debug@2.2.0, send@0.1.0, connect@2.7.2)
??? jquery@1.8.3 (navigator@1.0.1, location@0.0.1, xmlhttprequest@1.4.2, contextify@0.1.15, htmlparser@1.7.6, jsdom@0.2.19)
??? socket.io-client@0.9.17 (xmlhttprequest@1.4.2, ws@0.4.32, uglify-js@1.2.5, active-x-obfuscator@0.0.1)
??? socket.io@0.9.17 (base64id@0.1.0, policyfile@0.0.4, redis@0.7.3, socket.io-client@0.9.16)

Now change the working directory to Log.io folder and list the directory to visualize folder content in order to configure the application for further process.

[root@linuxhelp Desktop]# pwd
[root@linuxhelp Desktop]# cd .log.io/
[root@linuxhelp Desktop]# ls

To Configure the Log.io

Open the harvester.conf file located in " ~/.log.io/" for editing. Check theApache log files path and replace nodeName to match your hostname and the IP address of the server.

[root@linuxhelp Desktop]# vi ~/.log.io/harvester.conf 
Define the log Streams statements with the internal log files to monitor. Follow the below file excerpt as a guide.
exports.config = {
  nodeName: " linuxhelp_server" ,
  logStreams: {
    apache: [
      " /var/log/httpd/access_log" ,
      " /var/log/httpd/error_log" 
    ],
message:
[
" /var/log/messages" 
],
  },
  server: {
    host: ' 192.168.7.125' ,     
    port: 28777
  }
}

Open the log_server.conf and web_server.conf file to check the host and port number.

[root@linuxhelp Desktop]# vi ~/.log.io/log_server.conf 
exports.config = {
  host: ' 0.0.0.0' ,
  port: 28777
}
[root@linuxhelp Desktop]# vi ~/.log.io/web_server.conf
exports.config = {
  host: ' 0.0.0.0' ,
  port: 28778,

[root@linuxhelp Desktop]# firewall-cmd --add-port=28778/tcp --permanent
success
[root@linuxhelp Desktop]# firewall-cmd --add-port=28777/tcp --permanent
success
[root@linuxhelp Desktop]# firewall-cmd &ndash reload
success

[root@linuxhelp Desktop]#  log.io-server &  
[root@linuxhelp Desktop]#  log.io-harvester &