Linux Tutorials on the topic “security”
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How To Test Your Dansguardian, Safesquid, POESIA, Parental Internet Filter Or We-Blocker Keyword Filter Anytime Anywhere
Author: Webmaestro • Tags: linux, security • Comments: 4How To Test Your Dansguardian, Safesquid, POESIA, Parental Internet Filter Or We-Blocker Keyword Filter Anytime Anywhere Keyword filters block unwanted web pages on the basis of potentially fallen words found in them. However, to be sure that a page is indeed offensive, keyword filters nowadays are not designed to block sites on the basis of just about any potentially offensive word. Instead they measure the number of potentially offensive phrases and often the number of times they occur so as to allow a limited number of occurrences in pages such as those on anatomy, forms requiring gender information, crime reports, statistical reports, administrative information, art etc. The leading keyword blockers like Dansguardian which is extremely popular on Linux or SafeSquid which is popular on Linux and Windows use this method known as a weighed keyword score.
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Setting Up KeePass For Centos 6
Author: mrnuxi •
Tags: centos, security •
Comments: 9 Setting Up KeePass For Centos 6 This mini-howto describes how to set up KeePass on Centos 6. It requires building mono from source and installing the "portable" version of KeePass. Finally there are a few tweaks that need to be done so that it can execute properly.
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Encrypt Your Data With EncFS (Ubuntu 13.04)
Author: Falko Timme •
Tags: security, ubuntu •
Comments: 1 EncFS provides an encrypted filesystem in user-space. It runs without any special permissions and uses the FUSE library and Linux kernel module to provide the filesystem interface. It is a pass-through filesystem, not an encrypted block device, which means it is created on top of an existing filesystem. This tutorial shows how you can use EncFS on Ubuntu 13.04 to encrypt your data.
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Encrypt Your Data With EncFS on Debian 7 (Wheezy)
Author: Falko Timme •
Tags: debian, security •
Comments: 2 EncFS provides an encrypted filesystem in user-space. It runs without any special permissions and uses the FUSE library and Linux kernel module to provide the filesystem interface. It is a pass-through filesystem, not an encrypted block device, which means it is created on top of an existing filesystem. This tutorial shows how you can use EncFS on Debian Wheezy to encrypt your data.
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Removing Signatures From Various Packages
Author: MaddinXx •
Tags: security, debian •
Comments: 0 Removing Signatures From Various Packages This tutorial shows you how to remove the Debian signature/version info from packages such as Apache, Postfix or SSH. There are various reasons to remove the signature (and therefore hide that you are using Debian/a specific version). The most important one is about security. When a hacker knows the distro you are using, he can search for well-known security issues and start an attack against them. If he doesn't know the distro in use, chances to not find any security holes are much larger.
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How To Add WiKID Two-Factor Authentication To OpenVPN Community On Ubuntu 13.04
Author: nowen •
Tags: linux, security, storage, ubuntu •
Comments: 0 How To Add WiKID Two-Factor Authentication To OpenVPN Community On Ubuntu 13.04 These instructions describe setting up two-factor authentication with WiKID Strong Authentication, which is a commercial/open source two-factor authentication system and OpenVPN, an SSL-encrypted VPN, on an Ubuntu 13.04 Linux server using the Radius Pluggable Authentication Module. First, we will configure PAM to use Radius, then we will configure OpenVPN to use PAM and one-time passwords, then we will create a network client on the WiKID server for OpenVPN. We won't go into specifics about installing these services, rather we will focus on configuring them to all work together.
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Secure ISPConfig 3 And Services With GoDaddy Signed Certificate On CentOS
Author: Hairy •
Tags: security, centos, control panels, ispconfig •
Comments: 2 Secure ISPConfig 3 And Services With GoDaddy Signed Certificate On CentOS Let's set up a signed certificate from GoDaddy for the ISPConfig control panel, Pure-FTPD, Postfix, Dovecot, phpMyAdmin, and Squirrelmail. Don't forget to replace pluto.example.com with your own FQDN throughout this entire section!
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How To Configure Apache To Use Radius For WiKID Two-Factor Authentication On Ubuntu
Author: nowen •
Tags: apache, linux, security, ubuntu, web server •
Comments: 0 How To Configure Apache To Use Radius For WiKID Two-Factor Authentication On Ubuntu This document describes how to add WiKID two-factor authentication to Apache 2.x using mod_auth_radius on Ubuntu 12.04 Precise. It is recommended that you consider using mutual https authentication for web applications that are worthy of two-factor authentication. Strong mutual authentication means that the targeted website is authenticated to the user in some cryptographically secure manner, thwarting most man-in-the-middle attacks. The use of cryptography is key. While some sites use an image in an attempt to validate a server, it should be noted that any man-in-the-middle could simply replay such an image.
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Increasing the security of PPTP by adding two-factor authentication to poptop
Author: nowen • Tags: linux, security • Comments: 0Security Issues and Poptop PPTP does not have the best history in terms of security. The original Microsoft implementation for PPTP faired very poorly. MS-CHAPV2 solved these weaknesses - for wired networks. Unfortunately, back in 2004, Joshua Wright released a version of ASLEAP capable of brute-force attacking PPTP passwords in a wireless environment. As a systems administrator for the VPN, you can't tell if a user is connecting via some public WiFi service where someone might be running a tool like ASLEAP. Yet, the presense of PPTP client software on Windows machines makes using PPTP very tempting. The best answer to this problem is to utilize two-factor authentication. If a one-time passcode is brute-forced, it won't matter as it can't be used again.
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Setting Up ProFTPd + TLS On Ubuntu 12.10
Author: Falko Timme •
Tags: ftp, security, ubuntu •
Comments: 1 Setting Up ProFTPd + TLS On Ubuntu 12.10 FTP is a very insecure protocol because all passwords and all data are transferred in clear text. By using TLS, the whole communication can be encrypted, thus making FTP much more secure. This article explains how to set up ProFTPd with TLS on an Ubuntu 12.10 server.
