Linux Tutorials on the topic “security”
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Increase your IPv4 security with Fail2Ban and Tinyhoneypot on Debian Jessie
Author: nagyorgy •
Tags: debian, linux, security •
Comments: 9 It is a five minutes' exercise to increase security on an IPv4 addressed machine. The purpose of the setup described in this tutorial is to lock out port scanners and malicious port openers for a period of time.
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How to reset the root password on Linux and FreeBSD
Author: Manh.Luong •
Tags: centos, debian, linux, security, ubuntu •
Comments: 2 Listed below are the step by step procedures to reset the root password in different versions of CentOS, CoreOS, Debian, Ubuntu and FreeBSD. Begin this procedure by booting your server into single user mode.
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Getting started with Let's Encrypt SSL Certificates on Ubuntu
Author: Patrik Habdak •
Tags: linux, security, ubuntu •
Comments: 5 This tutorial will guide you through your very first configuration of an SSL website with Lets Encrypt certification. Let's Encrypt is a new SSL authority that provides free SSL certificates.
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Thoughts on intermediate compatibile SSL with Let's Encrypt certificates
Author: Patrik Habdak •
Tags: linux, security •
Comments: 2 Many people have decided to implement Let's Encrypt into their production sites. I find this still a very bad idea to be done without being very (but really very) careful. Let's Encrypt brings you freedom but also limits you in using the certificate with SHA-256 RSA Encryption. Support for SHA-256 has improved over the last few years. Most browsers, platforms, mail clients and mobile devices already support SHA-256. However, some older operating systems such as Windows XP pre-SP3 do not support SHA-256 encryption. Many organizations will be able to convert to SHA-256 without running into user experience issues, and many may want to encourage users running older, less secure systems to upgrade. In this tutorial, we are going to deal with this incompatibility in a simple, but still nasty way.
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SSL Certificates For PostgreSQL
Author: thebrain.ca •
Tags: linux, other, security •
Comments: 14 SSL Certificates For PostgreSQL This describes how to set up ssl certificates to enable encrypted connections from PgAdmin on some client machine to postgresql on a server machine. The assumption is that postgresql (compiled with ssl support) and openssl are already installed and functional on the server (Linux). PgAdmin is already installed on the client (either Windows or Linux).
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How to install and configure vsftpd with TLS on Debian 8 (Jessie)
Author: Till Brehm •
Tags: debian, ftp, security •
Comments: 8 This article explains how to set up a TLS enabled vsftpd server on a Debian 8 server. FTP is a very insecure protocol by default 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.
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How to Encrypt your Data with EncFS on Debian 8 (Jessie)
Author: Till Brehm •
Tags: debian, security •
Comments: 4 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 Jessie to encrypt your data.
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How to install ProFTPd with TLS support on Ubuntu 15.10
Author: Till Brehm •
Tags: ftp, linux, security, server, ubuntu •
Comments: 0 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 15.10 server, how to add an FTP user and to use FileZilla to connect securely with TLS.
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How To Get LTS updates for Debian 6 (Squeeze)
Author: Till Brehm •
Tags: debian, linux, security •
Comments: 3 Debian Squeeze (6.0) is the so named "Old Stable" branch of Debian, the official support for this version ended in april 2014. Squeze is still used on many servers, so a group of Debian developers decided to provide security patches for a longer timespan for this release. These so called LTS updates (LTS = Long Term Support) are not available on the normal Debian update repository and not every user might be aware that he wont get these updates automatically. The following short guide explains how to enable the LTS repository and install the updates.
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How to Encrypt Directories/Partitions with eCryptfs on Debian 8 (Jessie)
Author: Falko Timme •
Tags: debian, security, storage •
Comments: 5 eCryptfs is a POSIX-compliant enterprise-class stacked cryptographic filesystem for Linux. You can use it to encrypt partitions and also directories that don't use a partition of their own, no matter the underlying filesystem, partition type, etc. This tutorial shows how to use eCryptfs to encrypt a directory on Debian Jessie
