November 19, 2017

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How to Secure Apache With a Free SSL Certificate From StartSSL on CentOS

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Your own web server with an SSL certificate from an approved certificate authority so that the browser also does not cause any warning, that would be a good thing. But only the cost of a certificate from Verisign & Co let you forget those mind games quickly. The provider StartSSL does offer free SSL server certificates that are valid for one year after all. How great is that! In this tutorial we will show you the process of securing your Apache webserver with this free SSL certificate.

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How to Prevent Users From Seeing Processes That run Under Another UID on FreeBSD

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An important step to harden you FreeBSD system is to to disallow users to see processes that are being run under another UID. For this we need to set some kernel states to avoid others from fetching these information with commands like ps, top, sockstat and many more. This changes also applies to jailed systems.

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How to Copy a File From One Server to Another With SCP

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Copying files from one server to another is an often-repeated activity. You’ve set up a SSH service on the server you want to copy a file and a SSH client from where you want to copy a file. For this purpose you can use SCP. It is really easy.

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How to Setup a Git Repository on FreeBSD

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The open source distributed version control and source code management system Git is designed to handle projects with speed and efficiency. Git is not dependent on network access or a central server. Every Git working directory is a full-fledged repository with complete history and full version tracking capabilities. Git is free distributed under the terms of the GNU General Public License version 2. In this tutorial you will learn how to setup a Git repository on FreeBSD. SSH will be used for commits.

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How to Rename a Jail Using ezjail on FreeBSD

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This tutorial covers the steps to rename a jail using ezjail on FreeBSD. Instead of deleting and creating a new jail, you can rename an existing jail. This can safe you some time. If you do not use ezjail you can probably adjust the steps that it will work with your jail administration framework.

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How to Install PPTP VPN Server on FreeBSD

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This tutorial will cover the steps to set up a virtual private network on FreeBSD. We are using the PPTP VPN server to establish a VPN of 2 and more users. For the clients there is no need to install any VPN application as the built-in VPN client of Windows, Linux or Mac can be used.
This VPN server is using mpd4 and NAT of the VPN users and can be extended to any amount of users and interfaces.

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How to Install and Use the PF Firewall on FreeBSD

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PF or Packet Filter is the in-build firewall software of FreeBSD.
This firewall was originally developed for OpenBSD and has been ported to other operating systems like FreeBSD, NetBSD, Mac and Debian.
In this tutorial we will show you the PF installation and configuration steps on FreeBSD to keep your network secure.

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How to Install ElasticSearch on Windows

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In this tutorial we show you the ElasticSearch installation process on Windows. ElasticSearch is a distributed, RESTful, open source search server, based on Apache Lucene and developed in Java. We are using the Unix-like environment and command-line interface Cygwin to execute ElasticSearch commands on Windows.

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How to Update FreeBSD Source Files, Ports and Docs With CVSup

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With CVSup you can update FreeBSD source files, ports and docs.
CVSup efficiently updates all types of files, including sources, binaries, hard links, symbolic links, and even device nodes. Read more at the CVSup handbook page.

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How To Migrate or Backup IMAP Accounts With imapsync on CentOS

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imapsync allows incremental and recursive IMAP transfers from one mailbox to another over the internet or in your local network.
As imapsync is incremental you can stop the transfer at any time and restart it later. The complete folder hierarchy will be copied recursively. Feel free to use this tool for your next IMAP migration or backup.

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