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Changing the IPs of DNS servers used to resolve domains does not require reboot.<br />
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Changing the IPs of DNS servers used to resolve domains does not require reboot.



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You may need to restart the network service.
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You may need to restart the network service.

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Changing the DNS has an immediate effect.
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Changing the DNS has an immediate effect.

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I have a Centos 5 Linux server (clone of RedHat) that has incorrect DNS settings. I can ping IP addresses but not any domain names from this server. I need to set the new DNS servers without rebooting the server as it is in the middle of a batch job that will take several hours.<br />
<br />
I believe DNS servers should be set in/etc/resolv.conf and that file is empty. <br />
My DNS servers are 64.207.238.250 and 64.207.238.251<br />
<br />
How do I set the correct DNS servers and get them working without a reboot? I can not reboot as the server is doing some batch processing that will take several hours.<br />
<br />
Thank you<br />

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I have a Centos 5 Linux server (clone of RedHat) that has incorrect DNS settings. I can ping IP addresses but not any domain names from this server. I need to set the new DNS servers without rebooting the server as it is in the middle of a batch job that will take several hours.

I believe DNS servers should be set in/etc/resolv.conf and that file is empty. 
My DNS servers are 64.207.238.250 and 64.207.238.251

How do I set the correct DNS servers and get them working without a reboot? I can not reboot as the server is doing some batch processing that will take several hours.

Thank you


Change DNS servers for Linux without a reboot

Linux is a UNIX-like open source operating system with hundreds of distinct distributions, including: Fedora, openSUSE, Ubuntu, Debian, Slackware, Gentoo, CentOS, and Arch Linux. Linux is generally associated with web and database servers, but has become popular in many niche industries and applications.

Linux

A Linux distribution is an operating system made as a software collection based on the Linux kernel and, often, on a package management system and are available for a variety of systems. A typical Linux distribution comprises a Linux kernel, GNU tools and libraries, additional software, documentation, a window system (the most common being the X Window System), a window manager, and a desktop environment. Most Linux systems are open-source software made available both as compiled binaries and in source code form, allowing modifications to the original software. Over three hundred distributions are in active development, including commercially backed distributions (such as Fedora, openSUSE and Ubuntu) and community-driven distributions (such as Debian, Slackware, Gentoo and Arch Linux).