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{PHP} PHP 7.0.13 released {Debian} Debian 9 drops support for powerpc {Security} A fake SSH server that lets everyone in and logs their activity {Docker} Docker in production: A history of failure {Editor} Buttery smooth Emacs {Kernel} The status of Linux kernel hardening {Hardware} Warning: 2016 MacBook Pro is not compatible with Linux. You should […] Read More

Touch ID Support for sudo in MacOS Terminal for MacBook Pro

Well, that was fast. Touch ID is a fingerprint recognition security feature, designed and released by Apple. It is currently available on the iPhone 5s/6/7 and Macbook pro-2016 editions. Many consider it as a huge security win for the MacBook Pro's. This sounds amazing feature for command line users. sudo-touchid is a fork of sudo […] Read More

Find the oldest file in Unix or Linux file system

So I wanted to know the oldest file on my Debian Linux box. find / -type f -printf '%T+ %p\n' | sort | head -n 1 Here is an another example for /etc/ find /etc/ -type f -printf '%T+ %p\n' | sort | head -n 10 So find command finds all files in / and […] Read More

Forcefully mark down pfSense wan gateway as down

From the article: I have two internet connections (fiber and 4G LTE) configured in load balanced mode using pfSense FreeBSD based firewall. One of my wan connection is running out of bandwidth quota. How can I force and turn off this interface to save bandwidth until month end and enable it again from next billing […] Read More

virsh destroy && virsh undefine = Delete a guest VM on Linux KVM after creating it with virt-install

If you created a KVM guest from the command line with first install. Say, after sometimes you do not need a guest VM. However, how do you I delete this KVM guest from the command line? The answer is simple: virsh destroy VM_NAME && virsh undefine VM_NAME Of course as usual stuff in IT may […] Read More

Get 2x faster performance & 50% better memory consumption than PHP 5.6 by using PHP 7 on Debian and Ubuntu Linux

So PHP 7 provides 2x faster performance and 50% better memory consumption than PHP version 5.6. How do you install PHP 7 on Ubuntu Linux version 14.04 LTS server? How do I install PHP 7 with PHP-FPM in along with Nginx web server or Lighttpd or Apache 2 server? How can I install PHP 7 […] Read More

Dyn a cloud-based DNS service under DDoS attack and took down major sites such as Twitter/Reddit/Spotify/Paypal and others

A massive DDoS (distributed denial-of-service) attack against a popular cloud-based DNS provider Dyn.COM took down major websites. The DYN.COM confirmed it on twitter: We are aware of the ongoing service interruption of our Managed DNS network. For more information visit our status page. — Dyn (@Dyn) October 21, 2016 Following sites are having issues due […] Read More

Dirty COW (CVE-2016-5195) is a local privilege escalation vulnerability. Do not ignore this bug.

A race condition was found in the way the Linux kernel’s memory subsystem handled the copy-on-write (COW) breakage of private read-only memory mappings. A local unprivileged user could use this flaw to gain write access to otherwise read-only memory mappings and thus increase their privileges on the system. In other words, the normal user can […] Read More

How To Set Up SSH Keys

SSH keys provide a better and secure way of logging into a server with SSH than using a password. If you are a sysadmin or programmer, you may need to use SSH to fix server or update code. This guide explains how to setup SSH keys securely between your server and client computer. Read more […] Read More

You can now live patch Ubuntu Linux Kernel without rebooting the box

Kernel live patching enables runtime correction of critical security issues in running kernel without rebooting. Try new service from Canonical the company behind Ubuntu Linux operating system. It uses upstream Linux kernel 4.x kpatch technology. This guide explains how to enable or patch your Ubuntu Linux 16.04 LTS server without rebooting the box. Read more […] Read More