Configure
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Email
Postfix DKIM Records and Postfix SPF Records
Now we have our Postfix server sending and receiving emails it’s time to do some tidying up. You should configure…
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Email
Install Postfix Email Server on Ubuntu
Postfix, created by Wietse Venema, emerged as an alternative to the venerable Sendmail program. Its journey began at IBM Research, and after…
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Control Panels
Configure an ISPConfig Firewall to protect your server
In its default form, ISPConfig comes packaged with a software firewall. A software firewall is better than no firewall but…
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Proxmox
How To Configure Bridged Proxmox Networking
Unlike a Promox Routed Networking setup, Proxmox Bridged networking requires that MAC addresses are assigned to each IP you use.…
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Proxmox
How To Configure A Proxmox Private/Internal Network
A Proxmox private network or Proxmox internal network allows you to assign an internal IP to VMs and Containers. This…
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Linux
How to configure additional IPs on Debian 11
On Debian 11 instances, we removed the /etc/network/interfaces file and now configure interfaces using Cloud-init on boot. Discovery will send…
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IPs & Subnets
How to configure additional IPs In Debian & Ubuntu
This guide details how to configure additional Failover IPs in a Debian or Ubuntu VPS Server or Dedicated Server. This…
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IPs & Subnets
Configure Additional IPs On CentOS, RockyLinux and AlmaLinux
First2Host uses Failover IP blocks. Failover IP blocks allow us to point IP blocks at different servers and services. To…
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IPs & Subnets
Use a Range File to set up IP Subnets in your Linux Server
You can in some cases use a range file in Linux to set up a whole subnet inside your VPS…
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Email
How To Set up An Exim Email Server Using CentOS/RockyLinux
Exim is a mail server that deals with the sending and receiving of email. It allows users to send mail…
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