ChallengeResponseAuthentication no
to disable password authentication.
Zhang Weiwu wrote:
Hello. I'm today following the FreeBSD security how to <http://www.it.daemonnews.org/200108/security-howto.html> to secury my FreeBSD server. I configured dsa ssh access, now I can use my own computer to login to the server with ssh with dsa no problem, no password authentication is necessary. Following the guide I edit /etc/ssh/sshd_config and made sure
PasswordAuthentication no
But I tried restart sshd and even reboot the server, I can always login with password on any other computer.
Please drop me a hint.
Here is my server's configuration:
> uname -a
FreeBSD dino.realss 5.2-RELEASE FreeBSD 5.2-RELEASE #0: Sun Feb 29 04:29:22 CST 2004 [EMAIL PROTECTED]:/usr/src/sys/i386/compile/DINO i386
> cat /etc/ssh/sshd_config
# $OpenBSD: sshd_config,v 1.59 2002/09/25 11:17:16 markus Exp $
# $FreeBSD: src/crypto/openssh/sshd_config,v 1.33 2003/09/24 19:20:23 des Exp $
# This is the sshd server system-wide configuration file. See # sshd_config(5) for more information.
# This sshd was compiled with PATH=/usr/bin:/bin:/usr/sbin:/sbin
# The strategy used for options in the default sshd_config shipped with # OpenSSH is to specify options with their default value where # possible, but leave them commented. Uncommented options change a # default value.
# Note that some of FreeBSD's defaults differ from OpenBSD's, and # FreeBSD has a few additional options.
#VersionAddendum FreeBSD-20030924
Port 22 Protocol 2 #ListenAddress 0.0.0.0 #ListenAddress ::
# HostKey for protocol version 1 #HostKey /etc/ssh/ssh_host_key # HostKeys for protocol version 2 #HostKey /etc/ssh/ssh_host_dsa_key
# Lifetime and size of ephemeral version 1 server key #KeyRegenerationInterval 3600 #ServerKeyBits 768
# Logging #obsoletes QuietMode and FascistLogging #SyslogFacility AUTH #LogLevel INFO
# Authentication:
#LoginGraceTime 120 PermitRootLogin no StrictModes yes
RSAAuthentication no PubkeyAuthentication yes #AuthorizedKeysFile .ssh/authorized_keys
# rhosts authentication should not be used
RhostsAuthentication no
# Don't read the user's ~/.rhosts and ~/.shosts files
#IgnoreRhosts yes
# For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
#RhostsRSAAuthentication no
# similar for protocol version 2
#HostbasedAuthentication no
# Change to yes if you don't trust ~/.ssh/known_hosts for
# RhostsRSAAuthentication and HostbasedAuthentication
#IgnoreUserKnownHosts no
# To disable tunneled clear text passwords, change to no here! PasswordAuthentication no PermitEmptyPasswords no
# Change to no to disable PAM authentication #ChallengeResponseAuthentication yes
# Kerberos options KerberosAuthentication no KerberosOrLocalPasswd no #KerberosTicketCleanup yes
#AFSTokenPassing no
# Kerberos TGT Passing only works with the AFS kaserver #KerberosTgtPassing no
X11Forwarding yes #X11DisplayOffset 10 #X11UseLocalhost yes #PrintMotd yes #PrintLastLog yes #KeepAlive yes #UseLogin no #UsePrivilegeSeparation yes #PermitUserEnvironment no #Compression yes
#MaxStartups 10 # no default banner path #Banner /some/path #VerifyReverseMapping no
# override default of no subsystems Subsystem sftp /usr/libexec/sftp-server >
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