Linux Find Out GNU gcc Compiler Version Used To Compile Running Kernel

in Categories last updated December 11, 2017

I have multiple version of gcc installed on my Linux based system as follows:

ls -l /usr/bin/gcc*
lrwxrwxrwx 1 root root 7 Jan 11 05:20 /usr/bin/gcc -> gcc-4.4
-rwxr-xr-x 1 root root 239528 Sep 21 2010 /usr/bin/gcc-4.3
-rwxr-xr-x 1 root root 255536 Nov 15 2010 /usr/bin/gcc-4.4

I need to build a nvidia device driver using the same version of GNU compiler as was used to compile the currently running kernel. How do I find out the version of my GNU gcc compiler that was used by upstream Linux distribution to compile and pack my binary Linux kernel?

Linux /boot: Out of Disk Space While Installing Package kernel-2.6.32-131.2.1.el6.x86_64

in Categories last updated June 8, 2011

I‘m trying to install RHEL 6 kernel updates and patches using the yum command and getting the following error:

Transaction Check Error:
  installing package kernel-2.6.32-131.2.1.el6.x86_64 needs 8MB on the /boot filesystem

Error Summary
Disk Requirements:
  At least 8MB more space needed on the /boot filesystem.

How do I fix this error and install RHEL kernel without increasing /boot size or reinstalling the operating system?

Linux Iptables Open LDAP Server TCP Ports 389 and 636

in Categories , , , , , , , last updated August 16, 2009

The default Iptables configuration under CentOS / Red Hat / RHEL / Fedora Linux does not allow inbound access to LDAP service. How do I update iptables settings to allow access to the LDAP primary TCP #389 and encrypted-only TCP # 636 ports, while keeping all other ports on the server in their default protected state?