Mrtg: example cfg for memory, cpu, disk etc. Rumi, September 5, 2011 CPU Usage /etc/mrtg/cpu.cfg WorkDir: /var/www/mrtg LoadMIBs: /usr/share/snmp/mibs/UCD-SNMP-MIB.txt Target[localhost.cpu]:ssCpuRawUser.0&ssCpuRawUser.0:public@127.0.0.1+ ssCpuRawSystem.0&ssCpuRawSystem.0:public@127.0.0.1+ ssCpuRawNice.0&ssCpuRawNice.0:public@127.0.0.1 RouterUptime[localhost.cpu]: public@127.0.0.1 MaxBytes[localhost.cpu]: 100 Title[localhost.cpu]: CPU Load PageTop[localhost.cpu]: Active CPU Load % Unscaled[localhost.cpu]: ymwd ShortLegend[localhost.cpu]: % YLegend[localhost.cpu]: CPU Utilization Legend1[localhost.cpu]: Active CPU in % (Load) Legend2[localhost.cpu]: Legend3[localhost.cpu]: Legend4[localhost.cpu]: LegendI[localhost.cpu]: Active LegendO[localhost.cpu]: Options[localhost.cpu]: growright,nopercent Memory Usage /etc/mrtg/mem.cfg LoadMIBs: /usr/share/snmp/mibs/HOST-RESOURCES-MIB.txt Target[localhost.mem]: .1.3.6.1.4.1.2021.4.6.0&.1.3.6.1.4.1.2021.4.6.0:public@localhost… Continue Reading
MRTG Indexmaker Rumi, September 5, 2011September 5, 2011 Regular shorcut way: #indexmaker /etc/mrtg.cfg > /var/www/mrtg/index.html Now you need to reboot your system wait for five minutes or so and then take a look at your summary home page. If your Debian,ubuntu,kubuntu system’s IP address is 192.168.0.1 then you’d type in the following in the address bar of a… Continue Reading
Powerdns: init.d and mrtg Rumi, September 4, 2011 As mentioned before, the init.d commands dump, show and mrtg fetch data from a running PDNS process. Especially mrtg is powerful – it outputs data in a format that is ready for processing by the MRTG graphing tool. MRTG can make insightful graphics on the performance of your nameserver, enabling… Continue Reading
Powerdns: rec_control command Rumi, September 4, 2011 The rec_control get command can be used to query the following statistics, either single keys or multiple statistics at once: all-outqueries counts the number of outgoing UDP queries since starting answers0-1 counts the number of queries answered within 1 milisecond answers100-1000 counts the number of queries answered within 1 second… Continue Reading
Insall cache only powerdns server Rumi, September 4, 2011 I decided to install another caching dns server , after some research I found PowerDNS. it uses MySQL for storing its zones , but hopefully its caching component doesnt need mysql , so great , lets go and install it. My favourite OS is debian lenny , so I ran… Continue Reading
Upgrading Cacti Rumi, September 4, 2011 Backup the old Cacti database. shell> mysqldump -l –add-drop-table cacti > mysql.cacti Note: You will probably have to specify the -u and -p flags for the MySQL username and password. This user must have permission to read from Cacti's database or you will end up with an empty backup. Backup… Continue Reading
Connecting openvpn server using openvpn gui client for windows Rumi, August 31, 2011August 31, 2011 Assuming that you have a openVPN server ready to allow vpn connectivity from its clients. It is also assumed that CA Certificate (.pem) is also obtained from a valid CA and signed with the openVPN server. Because the large number of parameters you can define either in the configuration file… Continue Reading
Install GUI ins Ubuntu Server Rumi, August 25, 2011 First you nee to make sure you have enabled Universe and multiverse repositories in /etc/apt/sources.list file once you have enable you need to use the following command to install GUI sudo apt-get update sudo apt-get install ubuntu-desktop The above command will install GNOME desktop If you wan to install a… Continue Reading
Generating CSR using openssl Rumi, August 19, 2011 It's just a single line of code to execute- openssl req -new -newkey rsa:2048 -nodes -keyout /tmp/csr/csr.mangoca.com.key -out /tmp/csr/csr.mangoca.com.csr Continue Reading
SCP in linux Rumi, July 27, 2011 In Unix, you can use the scp command to copy files and directories securely between remote hosts without starting an FTP session or logging into the remote systems explicitly. The scp command uses SSH to transfer data, so it requires a password or passphrase for authentication. Unlike rcp or FTP,… Continue Reading