Security

Server Hardening

Server hardening. The very words conjure up images of tempering soft steel into an unbreakable blade, or taking soft clay and firing it in a kiln, producing a hardened vessel that will last many years. Indeed, server hardening is very much like that. more>>

Securi-Pi: Using the Raspberry Pi as a Secure Landing Point

Like many LJ readers these days, I've been leading a bit of a techno-nomadic lifestyle as of the past few years—jumping from network to network, access point to access point, as I bounce around the real world while maintaining my connection to the Internet and other networks I use on a daily basis. more>>

Take Control of Your PC with UEFI Secure Boot

UEFI (Unified Extensible Firmware Interface) is the open, multi-vendor replacement for the aging BIOS standard, which first appeared in IBM computers in 1976. The UEFI standard is extensive, covering the full boot architecture. This article focuses on a single useful but typically overlooked feature of UEFI: secure boot. more>>

Cipher Security: How to harden TLS and SSH

Encryption and secure communications are critical to our life on the Internet. Without the ability to authenticate and preserve secrecy, we cannot engage in commerce, nor can we trust the words of our friends and colleagues. more>>

Web Stores Held Hostage

Last week has seen an explosion of e-commerce sites infected with the Linux.Encoder.1 ransomware. For those not familiar with the term, ransomware is a particularly vicious type of malware that aims to extort money from the owners of compromised systems. more>>

Firefox's New Feature for Tighter Security

Freedom and privacy go hand in hand. In an ideal world, we wouldn't have to worry about who was looking over our shoulders. None of us would have anything to hide, and we would have ulterior motives. As citizens of the real world though, we have to take measures to protect ourselves. more>>

Protection, Privacy and Playoffs

I'm not generally a privacy nut when it comes to my digital life. That's not really a good thing, as I think privacy is important, but it often can be very inconvenient. For example, if you strolled into my home office, you'd find I don't password-protect my screensaver. more>>

Vigilante Malware

Vigilante. The word itself conjures up images of a man in a mask, leaping across rooftops as he chases wrongdoers, dancing with the devil in the pale moonlight. In films and on TV, the vigilante is usually the character we support. But would you welcome a vigilante into your home in real life? more>>

Debian Project Aims to Keep the CIA Off Our Computers

Debian Project Aims to Keep the CIA Off Our Computers

Lunar, one of the lead developers on the Debian ReproducibleBuilds project, has recently outlined a serious security hole that could impact all open-source software, including most Linux distributions. It potentially exposes users to unwanted scrutiny from third parties, including security agencies. His project is designed to close this hole.

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Using tshark to Watch and Inspect Network Traffic

Most of you probably have heard of Wireshark, a very popular and capable network protocol analyzer. What you may not know is that there exists a console version of Wireshark called tshark. The two main advantages of tshark are that it can be used in scripts and on a remote computer through an SSH connection. more>>

A Project to Guarantee Better Security for Open-Source Projects

With many open-source projects built on top of others, a security weakness in a common piece of infrastructure can have far-reaching consequences. As OpenSSL's Heartbleed security hole demonstrated, these vulnerabilities can appear in even the most trusted packages. more>>

Firefox Security Exploit Targets Linux Users and Web Developers

Through the years, Firefox has enjoyed a reputation as one of the most secure Web browsers on any platform, and it's the default browser for many Linux distros. However, a security exploit appeared this week that has shown users they can't afford to be complacent about security. more>>

Secure Server Deployments in Hostile Territory, Part II

In my last article, I started a series on some of the challenges related to spawning secure servers on Amazon EC2. In that column, I discussed some of the overall challenges EC2 presents for security compared to a traditional infrastructure and elaborated on how I configure security groups and manage secrets. more>>

Hacking a Safe with Bash

Through the years, I have settled on maintaining my sensitive data in plain-text files that I then encrypt asymmetrically. Although I take care to harden my system and encrypt partitions with LUKS wherever possible, I want to secure my most important data using higher-level tools, thereby lessening dependence on the underlying system configuration. more>>

One Port to Rule Them All!

I was chatting with Fred Richards on IRC the other day (flrichar on freenode) about sneaking around hotel firewalls. Occasionally, hotels will block things like the SSH port, hoping people don't abuse their network. Although I can respect their rationale, blocking an SSH port for a Linux user is like taking a mouse away from a Windows user! more>>

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