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The 4.0 Kernel Has Been Released

Linus has released the 4.0 kernel right on schedule. “Feature-wise, 4.0 doesn’t have all that much special. Much have been made of the new kernel patching infrastructure, but realistically, that not only wasn’t the reason for the version number chang…

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Not So Dynamic Updates

Typically when a network is under my control, I like my servers to have
static IPs. Whether the IPs are truly static (hard-coded into network
configuration files on the host) or whether I configure a DHCP server to make static
assignments, it’s far more convenient when you know a server always will have
the same IP. more>>

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Researchers Demonstrate Hack by Heat

Malware could pass data and commands between disconnected computers without leaving a trace on the network. 

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Flexible Access Control with Squid Proxy

Large enterprises and nuclear laboratories aren’t the only organizations
that need an Internet access policy and a means of enforcing it. My
household has an Internet access policy, and the technique I’ve used to
enforce it is applicable to almost any organization. In our case, I’m not
too concerned about outside security threats. more>>

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Security in Three Ds: Detect, Decide and Deny

Whenever a server is accessible via the Internet, it’s a safe bet that
hackers will be trying to access it. Just look at the SSH logs
for any server you use, and you’ll surely find lots of “authentication
failure” lines, originating from IPs that have nothing to do with you
or your business. more>>

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High-Availability Storage with HA-LVM

In recent years, there has been a trend in which data centers have been
opting for commodity hardware and software over proprietary solutions. Why
shouldn’t they? It offers extremely low costs and the flexibility to
build an ecosystem the way it is preferred. The only limitation is the extent
of the administrator’s imagination. more>>

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DNSMasq, the Pint-Sized Super Dæmon!

I’ve always been a fan of putting aftermarket firmware on consumer-grade
routers. Whether it’s DD-WRT, Tomato, OpenWRT or whatever your favorite
flavor of “better than stock” firmware might be, it just makes economic
sense. Unfortunately, my routing needs have surpassed my trusty Linksys
router. more>>

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Localhost DNS Cache

Is it weird to say that DNS is my favorite protocol? Because DNS
is my
favorite protocol. There’s something about the simplicity of UDP packets
combined with the power of a service that the entire Internet relies on
that grabs my interest. Through the years, I’ve been impressed with just how
few resources you need to run a modest DNS infrastructure for an internal
network. more>>

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Microsoft Frees CoreCLR

.NET Core execution engine is the basis for cross-platform .NET implementations.

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New Trojan Attacks Linux Servers

The Xnote trojan hides itself on the target system and will launch a variety of attacks on command.

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Real-Time Rogue Wireless Access Point Detection with the Raspberry Pi

Years ago, I worked for an automotive IT provider, and occasionally we went
out to the plants to search for rogue Wireless Access Points (WAPs). A
rogue WAP is one that the company hasn’t approved to be there. So if
someone were to go and buy a wireless router, and plug it in to the
network, that would be a rogue WAP. more>>

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