High Availabilty for VPNs
ALTERNATIVE PATH
IPSec prevents many of the clever tricks high-availability products employ. We’ll show you a solution that provides transparent backup for IPSec connections.
System administrators often want a network connection system that switches transparently to a backup if the primary connection goes down. But if you use a VPN with IPsec to protect your traffic en route through the Internet, the backup line needs some special attention. The reason for this attention is that IPsec [1] [2] requires consistent IP addresses at the endpoints of a tunnel, so when the network switches to a different tunnel, the IP addresses must switch to the new endpoints or else existing connections will be terminated. The Border Gateway Protocol (BGP [3]) offers a reliable means of maintaining a highly-available pool of IP addresses with a number of providers. Unfortunately, provider service agreements often prevent admins from using BGP for an existing Internet connection.
Buy this article as PDF
(incl. VAT)
Buy Linux Magazine
Subscribe to our Linux Newsletters
Find Linux and Open Source Jobs
Subscribe to our ADMIN Newsletters
News
-
KDE Plasma 6 Looks to Bring Basic HDR Support
The KWin piece of KDE Plasma now has HDR support and color management geared for the 6.0 release.
-
Bodhi Linux 7.0 Beta Ready for Testing
The latest iteration of the Bohdi Linux distribution is now available for those who want to experience what's in store and for testing purposes.
-
Changes Coming to Ubuntu PPA Usage
The way you manage Personal Package Archives will be changing with the release of Ubuntu 23.10.
-
AlmaLinux 9.2 Now Available for Download
AlmaLinux has been released and provides a free alternative to upstream Red Hat Enterprise Linux.
-
An Immutable Version of Fedora Is Under Consideration
For anyone who's a fan of using immutable versions of Linux, the Fedora team is currently considering adding a new spin called Fedora Onyx.
-
New Release of Br OS Includes ChatGPT Integration
Br OS 23.04 is now available and is geared specifically toward web content creation.
-
Command-Line Only Peropesis 2.1 Available Now
The latest iteration of Peropesis has been released with plenty of updates and introduces new software development tools.
-
TUXEDO Computers Announces InfinityBook Pro 14
With the new generation of their popular InfinityBook Pro 14, TUXEDO upgrades its ultra-mobile, powerful business laptop with some impressive specs.
-
Linux Kernel 6.3 Release Includes Interesting Features
Although it's not a Long Term Release candidate, Linux 6.3 includes features that will benefit end users.
-
Arch-Based blendOS Features Cool Trick
If you're looking for a Linux distribution that blends Linux, Android, and web apps together, blendOS might be what you're looking for.