Nowadays implementing Spam Prevention on a mail server is vital. Whilst Postfix has many directives that can be set, it is advisable to implement some type of filtering system to keep the spammers at bay. SpamAssassin uses a variety of spam-detection techniques, including DNS and fuzzy checksum techniques, Bayesian …

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ABackup Postfix MX ensures that you won’t lose any emails that are received if your primary mail server experiences downtime. If your mail server becomes unavailable, the Backup Postfix MX server will accept and hold your emails. Once your primary mail server becomes available again, the Backup Postfix MX will push …

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Continiung from my earlier post on Postfix Virtual Domain Hosting, I will complete the Cyrus IMAPD configuration here. In a sense this completes the earier post, however if you want a reliable, secure mail server, there is still more to do and I will cover topics such as Mail Relays & Spam Prevention in future …

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Over the last few weeks I have been consolidating some mail servers that I look after onto one systetm. I had been using Sendmail and Postfix but have decided on setting them all up under Postfix using Virtual Domain Hosting. Virtual Domain Hosting works in effect like Virtual Hosts in NGINX but then again not the …

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Snoop is designed to capture and inspect network packets and is included on OmniOS. Snoop has the ability to display current details of what is happening on the network or to be able to save this data to a file, which can be later analysed, either again from the snoop command, or the data can also be displayed in a …

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Gitea - Git with a cup of tea - is the fastest, easiest, most hassle-free way of setting up a self-hosted Git service. Gitea includes collaborative features like bug tracking, wikis and code review. One other cool feature is that it has support for two factor authentication.

Gitea was originally forked from the Gogs …

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zrepl is a one-stop, integrated solution for ZFS replication. zrepl is open source and is written in GO and uses Go modules to manage dependencies. It is available on FreeBSD, Linux and OmniOS, among others. The goal of this guide is to give a quick overview of zrepl, and to demonstrate implementing zrepl to provide …

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OmniOS can be used for OpenLDAP Client Authentication, both as a server and a client. The server stores the Directory Information Tree(DIT), that contains authentication details used by the client server. This guide will demonstrate how to configure both the server and the client.

This guide is a continuation of the …

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OpenLDAP is a free, open-source implementation of the Lightweight Directory Access Protocol (LDAP) developed by the OpenLDAP Project. The following is a quick start guide to OpenLDAP Software 2.4, including the Standalone LDAP Daemon, slapd(8).

It is meant to walk you through the basic steps needed to install and …

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Internet Systems Consortium (ISC) DHCP offers a complete open source solution for implementing DHCP servers, relay agents, and clients. ISC DHCP supports both IPv4 and IPv6, and is suitable for use in high-volume and high-reliability applications. ISC DHCP is available in base OmniOS system.

The following is an …

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