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Generate a GRUB configuration file It is sometimes needed to create a new, modify og recreate the grub configuration file. One easy tool to regenerate the config file is the command grub2-mkconfig. This command...
cdp by using tcpdump If you do not have a cdp command available on your linux server, then tcpdump can be used instead. $ sudo tcpdump -nn -v -s 1500 -c 1 'ether[20:2] == 0x2000' -i eth0 tcpdump:...
Using xpra to run remote X applications This post describes how you can run a X application on a host and view it on another. Xpra is a tool which allows you to run X programs — usually on a remote host — and then...
Replace firewalld with iptables in CentOS 7 This is a short HOWTO replace or disable firewalld with iptables in CentOS 7. Install iptables service # yum -y install iptables-services If you would like to save the...