Unable to connect to ZNC ~master: routines:SSL3_READ_BYTES:sslv3 #429

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2026-10-05T04:20:19+02:00

adam commented

2026-10-05 04:20:19 +02:00

Hello,
I'm unable to connect to ZNC over SSL in XChat Azure 1.16.2. The problem appeared when upgrading from ZNC 1.3 to ZNC ~master branch.

Here's my ZNC version:

ZNC - 1.5.0-git-484-2ee19fd - http://znc.in
IPv6: yes, SSL: yes, DNS: threads, charset: no

The error when connecting to ZNC:

Connection failed. Error: (336151568) error:14094410:SSL routines:SSL3_READ_BYTES:sslv3 alert handshake failure

And, my OpenSSL version:

OpenSSL 1.0.1e 11 Feb 2013
built on: Wed Oct 15 18:23:58 UTC 2014
platform: debian-i386-i686/cmov
options:  bn(64,32) rc4(8x,mmx) des(ptr,risc1,16,long) blowfish(idx)

Hello, I'm unable to connect to ZNC over SSL in XChat Azure 1.16.2. The problem appeared when upgrading from ZNC 1.3 to ZNC `~master` branch. Here's my ZNC version: ``` ZNC - 1.5.0-git-484-2ee19fd - http://znc.in IPv6: yes, SSL: yes, DNS: threads, charset: no ``` The error when connecting to ZNC: ``` Connection failed. Error: (336151568) error:14094410:SSL routines:SSL3_READ_BYTES:sslv3 alert handshake failure ``` And, my OpenSSL version: ``` OpenSSL 1.0.1e 11 Feb 2013 built on: Wed Oct 15 18:23:58 UTC 2014 platform: debian-i386-i686/cmov options: bn(64,32) rc4(8x,mmx) des(ptr,risc1,16,long) blowfish(idx) ```

adam closed this issue

2026-10-05 04:20:19 +02:00

adam commented

2026-10-05 04:20:20 +02:00

I believe your IRC client is out dated, as it attempts to use SSLv3, which is no longer considered secure. TLSv1 or later should be used instead. Ergo, you need a newer/different IRC client. If you are otherwise pleased with the interface and how XChat works, or are just used to it, I recommend HexChat.

HexChat supports the more recent SSL protocol. I also noticed there's now a Mac OS version of HexChat available. http://hexchat.github.io/downloads.html

Ben

I believe your IRC client is out dated, as it attempts to use SSLv3, which is no longer considered secure. TLSv1 or later should be used instead. Ergo, you need a newer/different IRC client. If you are otherwise pleased with the interface and how XChat works, or are just used to it, I recommend HexChat. HexChat supports the more recent SSL protocol. I also noticed there's now a Mac OS version of HexChat available. http://hexchat.github.io/downloads.html Ben

adam commented

2026-10-05 04:20:20 +02:00

You should be able to import your settings to HexChat directly.

SSLv3 was disabled because of being insecure, but I think there is option to re-enable it, but that isn't recommended.

You should be able to [import your settings to HexChat directly.](http://hexchat.readthedocs.org/en/latest/faq.html#how-do-i-migrate-my-settings-from-xchat) SSLv3 was disabled because of being insecure, but I think there is option to re-enable it, but that isn't recommended.

adam commented

2026-10-05 04:20:21 +02:00

So I tried the HexChat OSX client (I love the Windows Hexchat), and unfortunately, it's a little too buggy for me to switch over quite yet.

Still, I guess this isn't a bug with ZNC if it's just an incompatible SSL version.

So I tried the HexChat OSX client (I love the Windows Hexchat), and unfortunately, it's a little too buggy for me to switch over quite yet. Still, I guess this isn't a bug with ZNC if it's just an incompatible SSL version.

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Reference: adam/znc#429