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_posts/znc160ssl: zncstrap 3 & valid cert issues

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Aminda Suomalainen 2015-09-03 13:21:15 +03:00
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_posts/2015-02-24-znc160-ssl.md
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@ -24,7 +24,8 @@ as people are asking how to disable the SSL certificate verification on
Some people even wrote [a patch and scripts to disable the verification.](https://gist.github.com/KindOne-/52cfade7b937ee8b4c37) Some people even wrote [a patch and scripts to disable the verification.](https://gist.github.com/KindOne-/52cfade7b937ee8b4c37)
This isn't a good idea as patching ZNC can cause all kinds of issues as This isn't a good idea as patching ZNC can cause all kinds of issues as
sometimes seen with zncstrap [1](https://github.com/ProjectFirrre/zncstrap/issues/16) [2](https://github.com/ProjectFirrre/zncstrap/issues/18). sometimes seen with zncstrap [1](https://github.com/ProjectFirrre/zncstrap/issues/16) [2](https://github.com/ProjectFirrre/zncstrap/issues/18) [3](https://github.com/znc/znc/issues/384).
See also [contributing (reporting bugs) guidelines of ZNC.](https://github.com/znc/znc/issues/384)
I believe same policy should apply to patching ZNC as to config files, I believe same policy should apply to patching ZNC as to config files,
patch ZNC or edit config file and you will forfeit all support. patch ZNC or edit config file and you will forfeit all support.
@ -83,5 +84,21 @@ I hope this article has helped you to understand the issues with blindly
accepting SSL certificates or at least to understand that *if you don't accepting SSL certificates or at least to understand that *if you don't
want to verify SSL certificates, don't use SSL.* want to verify SSL certificates, don't use SSL.*
*Updated on 2015-02-26 10:43Z: just use environment variables in the * *Updated on 2015-02-26 10:43Z: just use environment variables in the
function like suggested by @DarthGandalf on \#znc.* function like suggested by @DarthGandalf on \#znc.*
## I am asked to verify fingerprint for network with valid certificate
*Added on 2015-09-03.*
There are usually three causes for this. Lets use freenode as example
network.
1. You don't have `ca-certificates` package installed, so your system
trusts no certificate authority. Install it and try again.
2. You are connecting to wrong address. freenode's certificate is vaid for
\*.freenode.net, but some other domains are CNAMEs to it and get
3. There is MITM which is unlikely, but unlikely is not impossible.
Validating the certificates either by trusted certificates or verifying
the fingerprints securely manually protect you from this. If MITM is the
case, you shouldn't connect.