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How To Patch and Protect OpenSSH Client Vulnerability CVE-0216-0777 and...
A serious security problem has been found and patched in the OpenSSH software. Two vulnerabilities have been discovered in OpenSSH on 14/Jan/2016. The OpenSSH project released an ssh client bug info...
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How to use curl command with proxy username and password on Linux or Unix
My sysadmin provided me the following proxy details: IP: 202.54.1.1 Port: 3128 Username: foo Password: bar The settings worked perfectly with Google Chrome and Firefox...
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Ubuntu Linux check cron log file error or messages in /var/log/cron.log file
I am trying to find errors or message for my cron job on Ubuntu Linux server. Where is the cron log in Ubuntu Linux 12.04/14.04 LTS server? How do I check cron logs in Ubuntu server? How to check if...
View ArticleHow to block an IP address with ufw on Ubuntu Linux server
I am using UFW to manage firewall on my Ubuntu Linux 12.04/14.04 LTS server. I need to block a specific IP address from accessing my server. How do I block an IP address using ufw? UFW (Uncomplicated...
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How to enable colorized output for the ls command in Mac OS X Terminal
I am new to Apple OS X. How do I enable colorized output for my ls command on Apple Mac OS X just like the ones that shown on my Ubuntu Linux server? How do I configure Mac OS X Terminal app to have...
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How To Patch and Protect Linux Kernel Zero Day Vulnerability CVE-2016-0728 [...
A very serious security problem has been found in the Linux kernel. A 0-day local privilege escalation vulnerability has existed since 2012. This bug affects millions of Android or Linux applications...
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Linux Check Disk Space Command
I recently switched from a Windows server to a Linux server operating system. I am using Ubuntu LTS server. How do I find out disk space utilization information using command line option?
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FreeBSD find the chmod numerical value for a file or directory
I need to find out the numerical value of a file on a FreeBSD system. For example, get 644 instead of -rw-r--r-- for the /etc/resolv.conf file. Is there is a way to get this value in my bash shell...
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How to Install Zend and Ioncube Loader on Vestacp (Ubuntu)
Installing Zend Guard Loader and ionCube Loader on latest Ubuntu server can be so tricky but here’s the tutorial you can follow to get it installed correctly on your Ubuntu server with Vestacp software...
View ArticleHow to install KVM on Ubuntu 14.04 LTS Headless Server
Kernel-based Virtual Machine (KVM) is a virtualization module for the Linux kernel that turns it into a hypervisor. How can I install KVM, setup guest operating system as the back-end virtualization...
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Ubuntu Linux Change Hostname (computer name)
I am a new Ubuntu Linux laptop user. I setup my computer name to 'tom' during installation but now I would like to change the computer name to 'jerry'. How can I remove tom and set it to jerry on...
View ArticleOS X install Amazon AWS command-line interface (CLI) tool
How do I setup and install the official Amazon AWS Command Line Interface (cli) on an Apple Mac OS X system? The official or universal command line interface for Amazon Web Services recommended the...
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How to create unprivileged LXC container on Ubuntu Linux 14.04 LTS
How do I install, create and manage unprivileged LXC containers on Ubuntu Linux version 14.04 LTS server?
View ArticleUbuntu sudo: add-apt-repository: command not found error and solution
I'm trying to run a command 'sudo add-apt-repository ppa:foo/bar' but getting the following error: sudo: add-apt-repository: command not found How do I fix this problem on Ubuntu Linux 14.04 LTS...
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How to install PHP 7 on Ubuntu Linux 14.04 LTS
PHP 7 provides 2x faster performance and 50% better memory consumption than PHP version 5.6. How do I install PHP 7 on Ubuntu Linux version 14.04 LTS server? How do I install PHP 7 with PHP-FPM in...
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How to reload sysctl.conf variables on Linux
I am new Linux system user. How do I reload all sysctl variables without rebooting my server?
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How To Patch and Protect Linux Glibc Getaddrinfo Stack-based Buffer Overflow...
A stack-based critical buffer overflow was found in the way the libresolv library (glibc) performed dual A/AAAA DNS queries. A remote attacker could crash or, potentially, execute code running the...
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How to run a command or script after running apt-get command on a Debian or...
How do I run custom command after 'apt-get upgrade' or 'apt-get dist-upgrade' on a Debian or Ubuntu Linux based system? How do I hook a script to apt-get command on my Ubuntu Linux server?
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How to Install VestaCP with Nginx + PHP-fpm
VestaCP is known nowadays as the best free and easy to use hosting control panel (according on me). Well, as you may know that by default Vestacp implements Nginx as frontend webserver while makes use...
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How to upgrade OpenSSH 7.0 to 7.2 on a OpenBSD Unix
OpenSSH version 7.2 has been released. How do I install or upgrade my existing OpenSSH version to 7.2 on a OpenBSD unix operating system?
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