How Do I Use the top Command?
The Linux top command is a useful tool for monitoring system performance and resource usage. It shows a table of processes and their CPU, memory, …
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Is Your System Displaying Signal 11 Errors?
A signal 11 error, commonly know as a segmentation fault, means that the program accessed a memory location that was not assigned. If you receive …
What is the recommended partitioning scheme?
A swap partition (at least 256 MB) — swap partitions are used to support virtual memory. In other words, data is written to a swap …
What Is the /proc File System?
The /proc file system is a special file system that provides information about processes and other system information in a hierarchical file-like structure. Unlike regular …
What Is Swap Space?
Swap Space and Types of Swap Swap space is a memory virtualization concept that allows Linux to use disk space as an extension of RAM …
Redhat / CentOS / Fedora Linux Open Port
Red Hat Enterprise Linux 3 / 4 / 5 and above => Old Red hat Linux version => CentOS 4 and above => Fedora Linux …
How to Determine What Hardware Is In a Linux Server
Computer hardware is the term for the physical components that make up a computer system. These include the case, CPU, RAM, monitor, mouse, keyboard, storage …
Change the default kernel that boots from GRUB
The GRUB configuration file can be found in /boot/grub/. [root@root /boot/grub]# ls -la grub.conf menu.lst -rw——- 1 root root 1037 Oct 28 11:41 grub.conf lrwxr-xr-x …
What to check, if you are unable to publish with Frontpage ?
First, you must make sure that your domain name is live and pointing to the server that your hosting account is on. You will NOT …
Basics of installing CGI & Perl scripts
1) Be sure the file permissions are set correctly on the cgi that you are trying to run start with 755. 2) Always upload and …
Quick check for a ddos via number of connections
A quick and usefull command for checking if a server is under ddos is: netstat -anp |grep ‘tcp\|udp’ | awk ‘{print $5}’ | cut -d: …
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