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Category Archives: Linux

Install Zabbix Agent on CentOS/RHEL Server

To configure Zabbix Agent on on CentOS/RHEL, enable the repo On CentOS/RHEL 7, run On CentOS/RHEL 6, run Update yum Install Zabbix Agent Configure Zabbix Agent Edit /etc/zabbix/zabbix_agentd.conf Set following values ServerActive and Server = IP of server where you


Install VNC Server on Ubuntu Server

We will be installing xfce4 desktop on remote Ubuntu server to run it as a Virtual Desktop. This instruction will work on Ubuntu and Debian servers. Lets install xfce, chromium browser and vncserver. Now we need to create a user


Install netdata on Linux (Debian/Ubuntu/CentOS)

netdata is an open source server monitoring software available at https://my-netdata.io/ One problem with this type of server monitoring is if the server go down, your minoring server too went down. If you use solution that you install on a


filesystem

Mounting Windows File System on Linux Encrypt folder before storing on Cloud with EncFS GlusterFS – Storage for your Cloud Mounting KVM qcow2 image


Mounting Windows File System on Linux

To mount a windows file system (CIFS/Samba) on Linux, run Example To auto mount file system on boot, add following to /etc/fstab Now run You will see the network drive mounted Common Errors failed: Key has expired error is due


ssh tunnel with autossh

autossh is a program to start a copy of ssh and monitor it, restarting it as necessary should it die or stop passing traffic. To install autossh on Ubuntu, run To start SSH tunnel using autossh, run Example autossh -M


rtorrent

rtorrent is a command line torrent client for Linux. https://github.com/rakshasa/rtorrent You can install rtorrent on CentOS/RHEL/Fedora with On Debian/Ubuntu Using rtorrent CTRL+S Start a torrent. CTRL+Q Quit rtorrent. CTRL+D Delete a torrent, you need to highlight it with arrow key


CoreOS disable Consistent Network Device Naming

To disable Consistent Network Device naming in CoreOS, run Then reboot the server Now network interface will look like core@localhost ~ $ ip a 1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00


DNS

DNS convert human readable domain name to IP address. To find IP of a web site, you can use commands like nslookup, dig, ping etc.. How to verify name server IP address Check DNS Propagation Flush Cache with Google Public


How to verify name server IP address

Name servers are more than just an A record. You need to create a name server record with Domain Registrar. Verifying name servers are not easy for many TLD, you have to trust your domain registrar. Only they can verify