X-Git-Url: http://andersk.mit.edu/gitweb/openssh.git/blobdiff_plain/9616313ff1f993ad52ab5b2c40deaab8fbf6a536..eea098a35a7ed7fd460ffb549c241aa9d47c2919:/ssh-keyscan.1 diff --git a/ssh-keyscan.1 b/ssh-keyscan.1 index 31bae33c..328d95ab 100644 --- a/ssh-keyscan.1 +++ b/ssh-keyscan.1 @@ -1,5 +1,13 @@ +.\" $OpenBSD: ssh-keyscan.1,v 1.8 2001/06/23 17:48:18 itojun Exp $ +.\" +.\" Copyright 1995, 1996 by David Mazieres . +.\" +.\" Modification and redistribution in source and binary forms is +.\" permitted provided that due credit is given to the author and the +.\" OpenBSD project by leaving this copyright notice intact. +.\" .Dd January 1, 1996 -.Dt ssh-keyscan 1 +.Dt SSH-KEYSCAN 1 .Os .Sh NAME .Nm ssh-keyscan @@ -24,7 +32,7 @@ uses non-blocking socket I/O to contact as many hosts as possible in parallel, so it is very efficient. The keys from a domain of 1,000 hosts can be collected in tens of seconds, even when some of those hosts are down or do not run ssh. You do not need login access to the -machines you are scanning, nor does does the scanning process involve +machines you are scanning, nor does the scanning process involve any encryption. .Sh SECURITY If you make an ssh_known_hosts file using @@ -39,26 +47,25 @@ have begun after you created your ssh_known_hosts file. .Sh OPTIONS .Bl -tag -width Ds .It Fl t -Set the timeout for connection attempts. If +Set the timeout for connection attempts. If .Pa timeout seconds have elapsed since a connection was initiated to a host or since the last time anything was read from that host, then the connection is closed and the host in question considered unavailable. Default is 5 seconds. .It Fl f -Read hosts or +Read hosts or .Pa addrlist namelist pairs from this file, one per line. If .Pa - is supplied instead of a filename, .Nm -will read hosts or +will read hosts or .Pa addrlist namelist pairs from the standard input. .El .Sh EXAMPLES -.Pp Print the host key for machine .Pa hostname : .Bd -literal @@ -70,12 +77,10 @@ Find all hosts from the file which have new or different keys from those in the sorted file .Pa ssh_known_hosts : .Bd -literal -ssh-keyscan -f ssh_hosts | sort -u - ssh_known_hosts | \e\ +$ ssh-keyscan -f ssh_hosts | sort -u - ssh_known_hosts | \e\ diff ssh_known_hosts - .Ed -.Pp .Sh FILES -.Pp .Pa Input format: 1.2.3.4,1.2.4.4 name.my.domain,name,n.my.domain,n,1.2.3.4,1.2.4.4 .Pp @@ -89,7 +94,7 @@ of all the machines it scans. This is because it opens a connection to the ssh port, reads the public key, and drops the connection as soon as it gets the key. .Sh SEE ALSO -.Xr ssh 1 +.Xr ssh 1 , .Xr sshd 8 -.Sh AUTHOR +.Sh AUTHORS David Mazieres