STAP-AUTHORIZE-SIGNING-CERT



STAP-AUTHORIZE-SIGNING-CERT

NAME
SYNOPSIS
DESCRIPTION
ARGUMENTS
SAFETY AND SECURITY
FILES
SEE ALSO
BUGS

NAME

stap−authorize−signing−cert − systemtap signing authorization utility

SYNOPSIS

stap−authorize−signing−cert CERTFILE [ DIRNAME ]

DESCRIPTION

stap−authorize−signing−cert is deprecated and will be removed in release 1.5. Please use ’stap --trust-servers’. See stap(1) for more information.

The staprun program will load modules for members of the group stapusr if they are signed by a trusted signer. A trusted signer is usually a systemtap compile server which signs modules when the client specifies the −−unprivileged option.

The trustworthiness of a given signer can not be determined automatically without a trusted certificate authority issuing systemtap signing certificates. This is not practical in everyday use and so, staprun must authenticate servers against its own database of trusted signers. In this context, establishing a given signer as trusted means adding that signer's certificate to staprun's database of trusted signers.

The stap−authorize−signing−cert program adds the given signing certificate to the given certificate database, making that signer a trusted server for staprun when using that database.

ARGUMENTS

The stap−authorize−signing−cert program accepts two arguments:
CERTFILE

This is the name of the file containing the certificate of the new trusted signer. For systemtap compile servers, this is the file named stap.cert which can be found in the server's certificate database. On the server host,

For servers started by the stap−server service, this database can be found in /var/lib/stap−server/.systemtap/ssl/server/. Otherwise, this database can be found in $SYSTEMTAP_DIR/ssl/server/. If SYSTEMTAP_DIR is not set, then the database can be found in $HOME/.systemtap/ssl/server/.

DIRNAME

This optional argument is the name of the directory containing the certificate database to which the certificate is to be added.

If not specified, the default can be found in the stappaths (7) manual page. That is, the default result is that all users on the local host will trust this signer. Note that this default directory is only writable by root.

SAFETY AND SECURITY

Systemtap is an administrative tool. It exposes kernel internal data structures and potentially private user information. See the stap(1) manual page for additional information on safety and security.

Systemtap uses Network Security Services (NSS) for module signing and verification. The NSS tool certutil is used for the generation of certificates. The related certificate databases must be protected in order to maintain the security of the system. Use of the utilities provided will help to ensure that the proper protection is maintained. staprun will check for proper access permissions before making use of any certificate database.

FILES

/var/lib/stap−server/.systemtap/ssl/server/stap.cert

Signing certificate for servers started by the stap−server service.

$SYSTEMTAP_DIR/ssl/server/stap.cert

Server certificate for servers started by other users.

SEE ALSO

stap(1), stappathss(7), staprun(8), stap−server(8), NSS, certutil

BUGS

Use the Bugzilla link of the project web page or our mailing list. http://sources.redhat.com/systemtap/, <systemtap@sources.redhat.com>.






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