VMware virtualization software is an excllent choice for x86-compatible computers. They have both commercial and free version. I received few email regarding VMWARE on 64 bit Linux. Installing VMWARE server on CentOS 5 or Red hat enterprise Linux 64 bit version is a tricky business. In this small howto I will explain vmware installation on 64 bit Linux server without facing any dependencies problem.
Following instructions are tested on both RHEL 5 and CentOS 5 running 64 bit Intel / AMD hardware and software. My kernel:
$ uname -mrs
Linux 2.6.18-8.1.6.el5 x86_64
My RHEL 5 release (same kernel for CentOS):
$ cat /etc/redhat-release
Red Hat Enterprise Linux Server release 5 (Tikanga)
Make sure you have following software installed:
- Full gcc compiler and development environment
- Kernel headers and devel packages for current kernel (i.e. kernel-headers and kernel-devel)
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One of our regular reader hall sends an interesting question:
I work for a small company and most user login to centralized Linux server. Iâ€™d like to
automatically log out all inactive users from server for various reasons. How do I disconnect inactive user sessions?
To be frank, I donâ€™t have any clear cut answer to question. There are at least 4-5 shells installed on a typical Linux installation. Also most user have has control over their own environment and user can switch to a different shell.
I hope our reader or seasoned UNIX admin can help to answer this question. Please share the experiences and advice in the comments.
Update: Checkout answer below in comments!
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PHP4 or PHP5 do not have any problem to execute php3 files. The only problem is you need to force PHP4 or PHP5 to understand .php3 file extension as a php script.
You need to use the sudo command to grant a permission to other users to shutdown your server. The sudo command allows a permitted user to execute a command as the superuser or another user, as specified in the /etc/sudoers file. Login as a root user and type the visudo command to edit the sudoers file.
Inodes are associated with precisely one directory entry at a time. However, with hard links, it is possible to associate multiple directory entries with a single inode. Each file on Linux or Unix comes with an inode containing metadata about the file. To create a hard link use the ln command as follows:
Have you ever wondered why shutdown account exists on Linux server, especially under Red Hat Enterprise Linux distribution?
The answer is quite simple – shutdown account can shutdown server. Here is how you can enable the shutdown account: