Date: Mon, 19 Apr 2004 14:39:34 +0800 From: Zhang Weiwu <zhangweiwu@realss.com> To: freebsd-questions@freebsd.org Subject: sshd: cannot disable password authentication, users can alwayslogin with password. Message-ID: <40837426.8090700@realss.com>
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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 zhangweiwu@dino.realss:/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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