How to Check the glibc Version on CentOS

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Pre-Flight Check
  • These instructions are intended specifically for checking the installed version of glibc.
  • I’ll be working from a Liquid Web Core Managed CentOS 6 and CentOS 7 server, and I’ll be logged in as root.
Using ldd
ldd --version This should return a result similar to: ldd (GNU libc) 2.17 Copyright (C) 2012 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Written by Roland McGrath and Ulrich Drepper. In this case, version 2.17 is installed.
Using yum
yum list glibc This should return a result similar to: Loaded plugins: fastestmirror, langpacks, priorities Loading mirror speeds from cached hostfile 3 packages excluded due to repository priority protections Installed Packages glibc.x86_64        2.17-55.el7_0.3          @system-updates-released Available Packages glibc.i686          2.17-55.el7_0.3          system-updates-released In this case, 2.17-55.el7_0.3 is the package installed.
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