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Category Archives for "Networking"

New Wi-Fi features in Windows 10 Anniversary Update

Last month Microsoft debuted its first major update to Windows 10, technically called version 1607 but generally known as the Anniversary Update. You may have seen stories around the web delving into the update's general improvements including a smarter Cortana, Edge extensions and Windows Ink, but rarely have the Anniversary Update's new Wi-Fi and networking features and interfaces been discussed.To read this article in full or to leave a comment, please click here(Insider Story)

Ubuntu 16.04 kisses the cloud, disses the desktop

With Ubuntu 16.04LTS (Xenial Xerus), Canonical has introduced incremental improvements to the popular server and cloud versions of its operating system, but if you were looking for exciting changes to desktop Ubuntu, this version isn’t it. The 16.04 release is an iterative, not necessarily massive improvement. But this is an Long Term Service (LTS) version, which means that there’s a team working on keeping it solid for five years. So, into the next decade, 16.04 gets patched and fixed, as other versions continue to be released on a regular basis. In this new release, Ubuntu further strays from the RedHat/SUSE/CentOS/Oracle school of software packaging by officially supporting an important new tool: Snap, a package manager.To read this article in full or to leave a comment, please click here

Obama aims to avoid a ‘cycle of escalation’ in cyberattacks by countries

U.S. President Barack Obama said his country has had problems with cyber intrusions from Russia and other countries in the past, but aims to establish some norms of behavior rather than let the issue escalate as happened in arms races in the past.Obama’s statement on the sidelines of the G20 summit in China, after he met with Russian President Vladimir Putin, did not refer specifically to a recent hack of the Democratic National Committee of the Democratic Party that the U.S. Federal Bureau of Investigation is probing.Politically embarrassing emails from the breach were leaked ahead of the convention of the party, with many security experts holding that the hack had the backing of Russian intelligence services. Whistleblowing website WikiLeaks released the emails but did not disclose their source. The U.S. government hasn’t blamed Russia for the incident.To read this article in full or to leave a comment, please click here

Obama aims to avoid a ‘cycle of escalation’ in cyberattacks by countries

U.S. President Barack Obama said his country has had problems with cyber intrusions from Russia and other countries in the past, but aims to establish some norms of behavior rather than let the issue escalate as happened in arms races in the past.Obama’s statement on the sidelines of the G20 summit in China, after he met with Russian President Vladimir Putin, did not refer specifically to a recent hack of the Democratic National Committee of the Democratic Party that the U.S. Federal Bureau of Investigation is probing.Politically embarrassing emails from the breach were leaked ahead of the convention of the party, with many security experts holding that the hack had the backing of Russian intelligence services. Whistleblowing website WikiLeaks released the emails but did not disclose their source. The U.S. government hasn’t blamed Russia for the incident.To read this article in full or to leave a comment, please click here

SSH Agent on OS X

There's a lot of information on the intertoobs about getting ssh-agent “working” in OS X and even more articles about when and how the stock behavior of ssh-agent changed (mostly with respect to how ssh-agent interacted with the Keychain).

This article doesn't cover or care about any of that.

This article is concerned with:

  • Enabling ssh-agent in such a way that I can “ssh-add” in one terminal window and that same agent (and the loaded keys) is available in all of my other terminal windows.
  • Enabling use of ssh-agent from MacPorts and/or Homebrew and not the older ssh-agent that OS X ships with in /usr/bin.
  • To avoid having to put my keys in the Keychain (just a matter of preference).

On Definitions: Whatever is Forwarding Information?

After last week’s, a reader left a comment noting “I2RS doesn’t manipulate forwarding data.” If I2RS isn’t “manipulating forwarding data,” then what, precisely, is it doing? I thought it’s worth a post to try and help folks understand the definitions in this space—except, as you’ll soon discover, there are no definitions here. In fact, it’s almost impossible to create a single set of definitions that will clarify the issues involved in understanding the various sorts of state in a network device. The following illustration might be helpful in trying to understand the vagaries of the various kinds of state, and the confusion that results from the various names used in different places.

device-model-definitions

It would be “nice” to say something like: information held in the forwarding table, that’s actually used to forward traffic through the router, is the only real “forwarding data.” This makes for a nice clean definition that clearly separates, say, what the RIB does and what the FIB does in most of the hardware based switching devices produced today. There are two problems with this clean definition, however.

First, there are, and always will be, devices produced that simply don’t have a forwarding table. Instead of Continue reading

OpenOffice coders debate retiring the project

Concerns at the Apache Software Foundation that the Apache OpenOffice project it hosts might be failing have prompted a debate about retiring the project, and triggered the resignation of at least one member of the project's management committee. The office productivity suite was once a key element of efforts to build an open source alternative to Microsoft's dominance of the desktop.Now its remaining developers struggle to keep on top of security issues in the code, and the ASF Board  has asked the project's management committee to explain itself and propose a remedy, committee chair Dennis E. Hamilton said in an email to project contributors last week.To read this article in full or to leave a comment, please click here

OpenOffice coders debate retiring the project

Concerns at the Apache Software Foundation that the Apache OpenOffice project it hosts might be failing have prompted a debate about retiring the project, and triggered the resignation of at least one member of the project's management committee. The office productivity suite was once a key element of efforts to build an open source alternative to Microsoft's dominance of the desktop.Now its remaining developers struggle to keep on top of security issues in the code, and the ASF Board  has asked the project's management committee to explain itself and propose a remedy, committee chair Dennis E. Hamilton said in an email to project contributors last week.To read this article in full or to leave a comment, please click here

Vacations of the future

Not everyone gets Labor Day off as a holiday, but that doesn’t mean the majority of people not working have literally gone on vacation. In the future, people scheduled to work on holidays and those with the days off but not the means to go on an exotic vacation, they can pick any day to explore wonders such as the Amazon rainforest or white beaches of the Caribbean. At least, that is what Expedia claimed; by using virtual and augmented reality, people won’t even need to leave home to explore some of the world’s wonders.If you really are not into the idea of a stay-at-home vacation, then VR and AR could also be used in a “try before you buy” vacation scenario. That tech might also be the answer to long-distance love affairs. Some futurists, such as Google’s Dr. Ray Kurweil, have predicted, “We will spend considerable time in virtual and augmented realities allowing us to visit with each other even if hundreds of miles apart. We’ll even be able to touch each other.”To read this article in full or to leave a comment, please click here

Vacations of the future

Not everyone gets Labor Day off as a holiday, but that doesn’t mean the majority of people not working have literally gone on vacation. In the future, people scheduled to work on holidays and those with the days off but not the means to go on an exotic vacation, they can pick any day to explore wonders such as the Amazon rainforest or white beaches of the Caribbean. At least, that is what Expedia claimed; by using virtual and augmented reality, people won’t even need to leave home to explore some of the world’s wonders.If you really are not into the idea of a stay-at-home vacation, then VR and AR could also be used in a “try before you buy” vacation scenario. That tech might also be the answer to long-distance love affairs. Some futurists, such as Google’s Dr. Ray Kurweil, have predicted, “We will spend considerable time in virtual and augmented realities allowing us to visit with each other even if hundreds of miles apart. We’ll even be able to touch each other.”To read this article in full or to leave a comment, please click here

Sophos false positive detection ruins weekend for some Windows users

A bad malware signature caused Sophos antivirus products to detect a critical Windows file as malicious on Sunday, preventing some users from accessing their computers.The false positive detection flagged winlogon.exe, an important component of the Windows Login subsystem, as a Trojan program called Troj/FarFli-CT. Because the file was blocked, some users who attempted to log into their computers were greeted by a black screen.Sophos issued an update to fix the problem within a few hours and said that the issue only affected a specific 32-bit version of Windows 7 SP1 and not Windows XP, Vista, 8 or 10."Based on current case volume and customer feedback, we believe the number of impacted systems to be minimal and confined to a small number of cases," the company said in a support article.To read this article in full or to leave a comment, please click here

Sophos false positive detection ruins weekend for some Windows users

A bad malware signature caused Sophos antivirus products to detect a critical Windows file as malicious on Sunday, preventing some users from accessing their computers.The false positive detection flagged winlogon.exe, an important component of the Windows Login subsystem, as a Trojan program called Troj/FarFli-CT. Because the file was blocked, some users who attempted to log into their computers were greeted by a black screen.Sophos issued an update to fix the problem within a few hours and said that the issue only affected a specific 32-bit version of Windows 7 SP1 and not Windows XP, Vista, 8 or 10."Based on current case volume and customer feedback, we believe the number of impacted systems to be minimal and confined to a small number of cases," the company said in a support article.To read this article in full or to leave a comment, please click here

Four of my students passed the CCDE Practical exam in August 2016

Hi everyone, I am glad to announce that below 4 of my students passed the CCDE Practical exam in August 2016 after attending my CCDE Training Program and got their CCDE numbers yesterday. Hashiru Aminu – CCIE (R&S,SP,SEC) & CCDE 2016::14 Anders C. Pedersen – CCIE #42544 (SP) & CCDE 2016::15 Muhammad Abubakar Sidduque – CCIE (SP,DC) & JNCIE & […]

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