dnsmasq HowTo - Linux / Unix Q & A from nixCraft

KVM libvirt assign static guest IP addresses using DHCP on the virtual machine

last updated March 16, 2016 in CentOS, Debian / Ubuntu, Linux, Linux KVM, RedHat and Friends, Virtualization

I am using KVM/libvirt on Linux operating system and how do I assign static IP address using dnsmasq dhcpd server for my default virtual network switch?

How To Set Caching DNS Server

last updated June 16, 2008 in Bind dns, CentOS, Debian / Ubuntu, FreeBSD, Linux, Monitoring, Networking, OpenBSD, Package Management, RedHat and Friends, Solaris-Unix, Suse, Ubuntu Linux, UNIX

How do I set caching dns server to speed up dns lookup for my LAN (500 PC)? The DNS lookups creating a lot of network activity. There are a few times when this causes performance issues. How do I configure caching dns under Debian Linux?

How To Flush Linux / UNIX DNS Cache

last updated June 2, 2012 in BASH Shell, CentOS, Debian / Ubuntu, FreeBSD, Linux, Networking, RedHat and Friends, Troubleshooting, Ubuntu Linux, UNIX

I‘m on a Dial UP Internet connection under Linux and frequent dial up disconnection causing dns problems. How do I flush DNS cache under UNIX / Linux distribution using a shell prompt?