gtls Network Stream Driver

This network stream driver implements a TLS protected transport via the GnuTLS library.

Available since: 3.19.0 (suggested minimum 3.19.8 and above)

Supported Driver Modes

Note: mode 0 does not provide any benefit over the ptcp driver. This mode exists for technical reasons, but should not be used. It may be removed in the future.
Supported Authentication Modes
Note: "anon" does not permit to authenticate the remote peer. As such, this mode is vulnerable to man in the middle attacks as well as unauthorized access. It is recommended NOT to use this mode.

x509/certvalid is a nonstandard mode. It validates the remote peers certificate, but does not check the subject name. This is weak authentication that may be useful in scenarios where multiple devices are deployed and it is sufficient proof of authenticy when their certificates are signed by the CA the server trusts. This is better than anon authentication, but still not recommended. Known Problems

Even in x509/fingerprint mode, both the client and sever certificate currently must be signed by the same root CA. This is an artifact of the underlying GnuTLS library and the way we use it. It is expected that we can resolve this issue in the future.

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This documentation is part of the rsyslog project.
Copyright © 2008 by Rainer Gerhards and Adiscon. Released under the GNU GPL version 3 or higher.