Ubuntu Linux: Turn On Exec-Shield Buffer Overflow Protection

msrxp linux, training January 6, 2018
I am trying to set exec-shield protection on Linux as described here but getting the following error on Ubuntu Linux server version 12.04 LTS: sysctl -w kernel.exec-shield=1 error: “kernel.exec-shield” is an unknown key How do…
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Ubuntu Linux LTS: Force Kernel Package Updates Which Have Been Kept Back

msrxp linux, training January 6, 2018
I am using Ubuntu 12.04.2 LTS (“precise”). I am trying to upgrade all packages using kernel via apt-get upgrade method. But, I am getting the following message: apt-get upgrade Reading package lists… Done Building dependency…
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Ubuntu: Stat / Stop / Restart Iptables Firewall Service

msrxp linux, training January 6, 2018
I am a new Ubuntu Linux version 12.04 LTS user. How do I stop or start iptables based firewall service on Ubuntu Linux using bash command line options?   You can type the following commands…
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Ubuntu Copy File Command

omid linux, training January 6, 2018
I ‘m a new Ubuntu Linux user. This seems like a newbie question, but I can not seem to find examples to copy files on Ubuntu. How do I copy file to another directory on…
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HowTo: Uninstall MySQL Server in Ubuntu Linux

omid linux, training January 6, 2018
I ‘m a new Ubuntu Linux user and my cloud hosting company installed MySQL server by default. I need to remove it and delete it from my server as I have no use of MySQL…
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HowTo: Upgrade To a Newer Version of Ubuntu 14.04 LTS

msrxp linux, training January 6, 2018
U buntu Linux version 14.04 LTS has been released. How do I upgrade to a newer version of Ubuntu 14.04 LTS from Ubuntu 13.10 or 12.04 LTS?   You can upgrade from minor or major…
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Linux / Unix logtop: Realtime Log Line Rate Analyser

msrxp linux, training January 5, 2018
H ow can I analyze line rate taking log file as input on a Linux system? How do I find the IP flooding my Apache/Nginx/Lighttpd web-server on a Debian or Ubuntu Linux?   You need…
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Ubuntu Linux Create and Add Swap File Tutorial

msrxp linux, training January 5, 2018
I ‘m a new Ubuntu Linux version 14.04 LTS user. I need additional swap space to improve my Ubuntu server performance. How can I add a swap space on Ubuntu Linux 14.04 LTS using command…
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Install LEMP (Linux, Nginx, MySQL and PHP) Stack on Ubuntu Linux 14.04 LTS

omid linux, training January 5, 2018
I ‘m a new Ubuntu Linux user. How do I install the LEMP stack on an Ubuntu Linux 14.04 LTS server using command line options to serve dynamic web apps?   As one of the…
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How To Patch and Protect Linux Server Against the VENOM Vulnerability # CVE-2015-3456

msrxp linux, training January 5, 2018
A very serious security problem has been found in the virtual floppy drive QEMU’s code used by many computer virtualization platforms including Xen, KVM, VirtualBox, and the native QEMU client. It is called VENOM vulnerability.…
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