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Zerba (0.93)

Zebra# conf t Zerba(config)# no banner motd

Bind

Add in named.conf : options { hostname="" version="" ... } PS: nmap now detect it as Bind 4.X :)

WU-FTPD (default on FreeBSD)

Add "-h" option to startup parameters: ftp stream tcp nowait root /usr/libexec/ftpd ftpd -l -h

OpenSSH

Version consists of two parts : base and addendum. Base can be changed only in sources (SSH_VERSION_BASE in version.h). Addendum can be changed via sshd_config: VersionAddendum ""

ProFTPD (1.2.0pre2 and later)

ServerIdent off|on [identification string]
ServerIdent off -OR- ServerIdent on "Fake version"

Squid

Where is no way to do it via config files (at least in 2.5.STABLE7). Check out patch to do so.

Apache

To disable version information on server-generated error pages: ServerSignature Off To reduce information in server response headers to bare minimum: ServerTokens Prod