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16 February, 2015
Newsletter issue 11

It’s the month of love and we’re showing some network-maintenance love with two great articles on troubleshooting using mtr and telnet. In this issue, you can also catch up on the latest Linux vulnerability called Ghost. Lastly, we’d like to tell you more about our backup service and why it’s the backup solution you need.

Have a great week!

Your account manager,

In this issue

Back It Up!

Preparing for worst-case scenarios and being ten steps ahead of any crisis is the core of what you do. Data is the currency your company relies and trades on. And data is precious. System crashes, hacking, hardware failures, and human errors are events that should not touch the strength of that currency. Backing up data is never a luxury. It is a must.

Talk to us today and we will walk you through our easy-to-use, secure, and reliable off-site solution for your backup needs.

Easy to use
The Alnitech Backup service requires no additional tools or applications.

Each account gets its own individual container with its own IP address and login credentials.

Alnitech uses enterprise-grade hardware with industry standard open-source software. We guarantee speed, reliability, and high availability 24/7/365.

Go here to know more about our COST-EFFECTIVE backup solutions.

“Ghost” Vulnerability Discovered in Linux

Last January 27, 2015, a buffer overflow flaw—dubbed “Ghost”—was discovered in the Linux GNU C Library (glibc) versions 2.2 and other 2.x versions before 2.18. It allows remote code execution via the gethostbyname*() function. Researchers have initially identified clockdiff, procmail, pppd, and the Exim mail server software as attack vectors.

To learn more about the vulnerability and to download patches follow the link.

Advanced Network Troubleshooting: Using My Traceroute (MTR)

MTR stands for My Traceroute but it was originally called Matt’s traceroute. It is a diagnostic tool that combines the functionality of the commands traceroute and ping so you can do repeated network traces in real time. MTR can show the round-trip time it takes to reach each hop along the path, which gives you at-a-glance data on which hops are problematic and at what times they are slow.

Find out how to verify packet loss and read network latency in MTR reports here.

Advanced Network Troubleshooting: Using Telnet

Telnet is a terminal emulation application that lets you remotely access networks on TCP/IP. Telnet clients are available for almost all computer platforms (For CentOS, Debian/Ubuntu, Windows).

To install a telnet client and to learn how to test network connectivity via Telnet go here.
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Funny facts about Google users: 50% of people use Google well as a search engine. The rest 50% of them use it to check if their internet is connected.
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Basic Network Troubleshooting
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Advanced Network Troubleshooting: Using traceroute
Basic Performance Analysis

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