Bram Matthys
08f90d4006
This isn't really important, as you can read below, but was a FIXME item. This function checks for RSA keys that are less than 2048 bits, so RSA 1024 is rejected. This was added in UnrealIRCd 5.0.0 (Dec 2019). RSA 1024 was already looong considered insecure. And those using it should have been flagged from there on. OpenSSL 3 changed the API, and this function was never updated to have the same check with OpenSSL 3+ until now. Fortunately, OpenSSL 3.0.0 onwards reject 1024 bit RSA by default, so that doesn't really matter. For reference, OpenSSL 3 was released in Sep 2021 and first appeared in Ubuntu LTS 22.04 (Apr 2022) and Debian 12 (Jun 2023). However, if you set SECLEVEL to 0 (eg in system-wide openssl.cnf), it would allow those keys, which is pretty much expected but also not what we want at UnrealIRCd. From now on, for those rare situations, we reject it as well.
About UnrealIRCd
UnrealIRCd is an Open Source IRC Server, serving thousands of networks since 1999. It runs on Linux, OS X and Windows and is currently the most widely deployed IRCd with a market share of 37%. UnrealIRCd is a highly advanced IRCd with a strong focus on modularity and security. It uses an advanced and highly configurable configuration file. Other key features include: full IRCv3 support, SSL/TLS, cloaking, JSON-RPC, advanced anti-flood and anti-spam systems, GeoIP, remote includes, and lots of other features. We are also particularly proud on our extensive online documentation.
Versions
- UnrealIRCd 6 is the stable series since December 2021. It is the only supported version.
- For full details of release scheduling and EOL dates, see UnrealIRCd releases on the wiki
How to get started
Follow the installation guide on the wiki. See:
Documentation and Support
You can find all documentation online at: https://www.unrealircd.org/docs/
We also have a good FAQ: https://www.unrealircd.org/docs/FAQ
If you are in need of support, you can pop up on #unreal-support on irc.unrealircd.org
or ask your question on the forums.
Supported systems
We try to support all major *NIX systems: all Linux distros but also NetBSD, OpenBSD and macOS, provided the OS version was released within the past ~5 years.
We use a private BuildBot instance to test each commit. The tested systems are (others are likely to work too):
- Linux: Debian (10, 11, 12, 13), Ubuntu (18.04, 20.04, 22.04, 24.04, 26.04)
- FreeBSD: 15
- Windows: Visual Studio 2019
UnrealIRCd is architecture-agnostic. Most of the BuildBot workers run on x64 but we also have some on x86 and arm64 to ensure these work as well.
Other links
- https://www.unrealircd.org - Main website
- https://bugs.unrealircd.org - Bug tracker
- https://fosstodon.org/@unrealircd - Mastodon
- https://twitter.com/Unreal_IRCd - Twitter