Articles
Nagios Passive Checks
Why spam yourself with useless notifications every time a script completes successfully? You can use Nagios to screen the notices and just send the ones that need action.
Save and Restore Linux Processes with CRIU
With CRIU, you can freeze the current state of a process and save it, then bring it back to life and continue from the point at which it was frozen.
Disaster recovery for Windows servers
Need to fix a Windows server? We'll discuss some techniques for getting your system back. You'll also learn some tricks for Active Directory and Exchange.
Hardware MFA: Death to the password!
Around since the 1960s, passwords are still the mainstay for authentication. The good news is you have alternatives in hardware multifactor authentication.
Security after Heartbleed – OpenSSL and its alternatives
The Heartbleed bug shocked the security community and seriously damaged the reputation of OpenSSL. Luckily, alternatives such as LibreSSL, PolarSSL, and GnuTLS are waiting in the wings.
Distributed storage with Sheepdog
The Sheepdog distributed storage tool exhibits pronounced doggedness and deserves appropriate attention, benefiting projects such as QEMU and OpenStack.
Comparing Ceph and GlusterFS
Many shared storage solutions are currently vying for users’ favor; however, Ceph and GlusterFS generate the most press. We compare the two competitors and reveal the strengths and weaknesses of each solution.
Coordinating distributed systems with ZooKeeper
Anyone who manages many clusters should be meticulous in ensuring that organized processes prevail in the distributed server zoo. We describe how Apache ZooKeeper fulfills this task.
Port Knocking
To ensure that the data on your computers remains accessible only by you and those with whom you want to share, we look at the advantages of combining TCP Wrappers and port knocking.
Multifactor authentication from FIDO
The FIDO Alliance is working to build open solutions for the future of authentication.
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