How do I read a list of ip address (subnets) using a text file and block all of them using Linux iptables command?
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egrep command
How do I create a bootable USB pen drive to start my CentOS / Fedora Linux? How do I create a bootable USB flash pen for installation of Linux, and for creation of rescue and other special-purpose boot disks using command line options?
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I’m using portmaster to manage my ports without external databases. However, when I run the try to run pkg_version -l ‘< ‘, I’m getting the following error: pkg_version: corrupted record (pkgdep line without argument), ignoring How do I fix this problem?
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My CentOS Apache 2 (httpd) webserver will not start. It was working fine, but I made few changes to httpd.conf and it is not restarting. What are some things to check in order to solve my Apache server restart issues?
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Q. My SATA drive is being displayed as /dev/hda instead of /dev/sda. How do I fix this problem and make sure I get /dev/sda and speed of SATA under Linux operating systems?
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How do I check the existing Linux / UNIX users and groups under Linux / UNIX operating system?
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