What is GSSAPICleanupCredentials?
GSSAPICleanupCredentials Specifies whether to automatically destroy the user’s credentials cache on logout.
Should I disable GSSAPIAuthentication?
GSSAPI authentication is used to provide additional authentication mechanisms to applications. Allowing GSSAPI authentication through SSH exposes the system’s GSSAPI to remote hosts, increasing the attack surface of the system. GSSAPI authentication must be disabled unless needed.
What is GSSAPIAuthentication Red Hat?
GSSAPI authentication is used to provide additional authentication mechanisms to applications. GSSAPI authentication must be disabled unless needed.
Is GSSAPI secure?
The GSSAPI, by itself, does not provide any security. The client and server sides of the application are written to convey the tokens given to them by their respective GSSAPI implementations. GSSAPI tokens can usually travel over an insecure network as the mechanisms provide inherent message security.
What is keyboard interactive?
Keyboard-interactive authentication is a mechanism defined by the Secure Shell (SSH2) protocol that allows for a generic, interactive exchange of messages between an SSH2 server and the SSH2 client that it is attempting to authenticate.
What does sshd_config do?
The sshd_config file specifies the locations of one or more host key files (mandatory) and the location of authorized_keys files for users. It may also refer to a number of other files.
What is GSSAPIAuthentication used for?
GSSAPI authentication is used to provide additional authentication mechanisms to applications. Allowing GSSAPI authentication through SSH exposes the system’s GSSAPI to remote hosts, increasing the attack surface of the system.
What Gessapiauthentication yes?
The ssh command line option “-K” can be used, or both of the following directives placed in the configuration file (~/.ssh/config): GSSAPIAuthentication yes. This enables presenting the credential to the remote server to be used as authentication.
What is failed keyboard Interactive?
This syslog message means that a login attempt was made and failed via a keyboard interactive (user manually entering a username and password) or via a PAM (plugable authentication module). A brute force attempt at logging into the firewall will generate a high volume of this error.
What is accepted keyboard interactive PAM?
“keyboard-interactive” user authentication is intended primarily to accomodate PAM authentication on the server side. If you’re not deliberately using both for different purposes, you may want to disable one or the other to avoid end-user confusion. …