This is a limitation of the IRC protocol ...
You have to set (at least) the following configuration variables in the
-[GLOBAL] section of ngircd.conf(5): SSLPorts, SSLKeyFile, and SSLCertFile.
+[SSL] section of ngircd.conf(5): Ports, KeyFile, and CertFile.
Now IRC clients are able to connect using SSL on the configured port(s).
(Using port 6697 for encrypted connections is common.)
OpenSSL:
Creating a self-signed certificate and key:
- $ openssl req -newkey rsa:2048 -x509 -keyout server-key.pem \
- -out server-cert.pem -days 1461
+ $ openssl req -newkey rsa:2048 -x509 -keyout server-key.pem -out server-cert.pem -days 1461
Create DH parameters (optional):
- $ openssl dhparam -2 -out dhparams.pem 2048
+ $ openssl dhparam -2 -out dhparams.pem 4096
GnuTLS:
Creating a self-signed certificate and key:
$ certtool --generate-privkey --bits 2048 --outfile server-key.pem
- $ certtool --generate-self-signed --load-privkey server-key.pem \
- --outfile server-cert.pem
+ $ certtool --generate-self-signed --load-privkey server-key.pem --outfile server-cert.pem
Create DH parameters (optional):
- $ certtool --generate-dh-params --bits 2048 --outfile dhparams.pem
+ $ certtool --generate-dh-params --bits 4096 --outfile dhparams.pem
Alternate approach using stunnel(1)