HostOnNet Blog

Benchmarking Web Server with ab

ab is a tool for benchmarking web servers. It generate large amount of concurrent requests to a web site, simulating high traffic. This helps you identify how many visitors your web server able to handle. Here we generate 30 concurrent


Convert Putty PPK file to Linux

ppk is format used to store private key by popular windows ssh client Putty. This do not work on Linux, if you want to use .ppk file to connect to remote server from Linux machine, you need to convert it


rpm – Package Manager for RedHat Linux

rpm manage software packages in distros like Fedora, RedHat, CentOS. To list all installed software packages, run To see if a package is installed, run Example root@server2 [~]# rpm -qa | grep exim exim-4.89-3.cp1162.x86_64 root@server2 [~]# List all Files in


Ubuntu 16.04 PhpMyAdmin root login problem

On Ubuntu 16.04 when i login to PhpMyAdmin with user root, i get error This is because MySQL by default use local system account to login as user root. This is done with plugin “unix_socket”. To allow MySQL user root


Disable Alerts in NetData

Netdata have several health checks. This can be found in folder You can configure alarm notify options in file If you want to disable all alerts from netdata, edit Find Replace with Restart netdata netdata Server Monitoring Tools


R1Soft Could Not Authenticate Agent

When you test connection to protected machine (agent) on R1Soft Server Backup Manager, if you get error Could not authenticate agent x.x.x.x This is because you don’t add server key in agent. To list server keys, run Example root@localhost:~# serverbackup-setup


Adding New Server to R1Soft Backup

Before you can backup a machine using R1Soft.com Backup, you need to add the Machine to Server Backup Manager. Login to R1Soft Server Backup Manager SE > Protected Machines > New Machine On Next page, you need to enter server


Install r1Soft Backup Agent on Ubuntu

To install r1soft backup agent on Ubuntu, add r1soft repo Install Agent Once installed, verified software can connect to r1soft.com with Install linux-headers for your running kernal Install required kernel modules Restart r1soft agent Now you have Backup agent installed