Hello,
Hope this is in the right section.
Is there a way to limit SSH passphrase attempts ?
Thank you.
Hope this is in the right section.
Is there a way to limit SSH passphrase attempts ?
Thank you.
/etc/rc.d/sshd reload
#VersionAddendum FreeBSD-20090522
Port 1970
#Protocol 2
#AddressFamily any
ListenAddress 192.168.1.109
#ListenAddress ::
# Disable legacy (protocol version 1) support in the server for new
# installations. In future the default will change to require explicit
# activation of protocol 1
Protocol 2
# HostKey for protocol version 1
#HostKey /etc/ssh/ssh_host_key
# HostKeys for protocol version 2
#HostKey /etc/ssh/ssh_host_rsa_key
#HostKey /etc/ssh/ssh_host_dsa_key
# Lifetime and size of ephemeral version 1 server key
#KeyRegenerationInterval 1h
#ServerKeyBits 1024
# Logging
# obsoletes QuietMode and FascistLogging
#SyslogFacility AUTH
#LogLevel INFO
# Authentication:
#LoginGraceTime 2m
PermitRootLogin no
#StrictModes yes
MaxAuthTries 2
#MaxSessions 10
RSAAuthentication yes
PubkeyAuthentication yes
AuthorizedKeysFile .ssh/authorized_keys
# 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
# Don't read the user's ~/.rhosts and ~/.shosts files
#IgnoreRhosts yes
# Change to yes to enable built-in password authentication.
PasswordAuthentication no
PermitEmptyPasswords no
# Change to no to disable PAM authentication
ChallengeResponseAuthentication no
# Kerberos options
#KerberosAuthentication no
#KerberosOrLocalPasswd yes
#KerberosTicketCleanup yes
#KerberosGetAFSToken no
# GSSAPI options
#GSSAPIAuthentication no
#GSSAPICleanupCredentials yes
# Set this to 'no' to disable PAM authentication, account processing,
# and session processing. If this is enabled, PAM authentication will
# be allowed through the ChallengeResponseAuthentication and
# PasswordAuthentication. Depending on your PAM configuration,
# PAM authentication via ChallengeResponseAuthentication may bypass
# the setting of "PermitRootLogin without-password".
# If you just want the PAM account and session checks to run without
# PAM authentication, then enable this but set PasswordAuthentication
# and ChallengeResponseAuthentication to 'no'.
#UsePAM yes
#AllowAgentForwarding yes
#AllowTcpForwarding yes
#GatewayPorts no
#X11Forwarding yes
#X11DisplayOffset 10
#X11UseLocalhost yes
#PrintMotd yes
#PrintLastLog yes
#TCPKeepAlive yes
#UseLogin no
#UsePrivilegeSeparation yes
#PermitUserEnvironment no
#Compression delayed
#ClientAliveInterval 0
#ClientAliveCountMax 3
#UseDNS yes
#PidFile /var/run/sshd.pid
#MaxStartups 10
#PermitTunnel no
#ChrootDirectory none
# no default banner path
#Banner none
# override default of no subsystems
Subsystem sftp /usr/libexec/sftp-server
# Example of overriding settings on a per-user basis
#Match User anoncvs
# X11Forwarding no
# AllowTcpForwarding no
# ForceCommand cvs server
auth.info;authpriv.info /var/log/auth.log
Apr 16 08:37:03 mail sshd[6059]: Accepted publickey for gkontos from xxx.xxx.xxx.xxx port 52743 ssh2
Apr 16 09:46:06 mail sshd[10574]: Did not receive identification string from 184.107.183.194
Apr 16 09:56:10 mail sshd[11219]: Invalid user apple from 184.107.183.194
table <kiddies> persist
block in log quick from <kiddies>
pass in on $mail proto tcp to any port ssh flags S/SA keep state (max-src-conn 4, max-src-conn-rate 3/5, overload <kiddies> flush)
da1 said:Uncommentrestart ssh and try again. Keep an eye out for errors in all.logCode:#SyslogFacility AUTH #LogLevel INFO
auth.info;authpriv.info /var/log/auth.log
/usr/sbin/sshd -d
-d Debug mode. The server sends verbose debug output to standard
error, and does not put itself in the background. The server
also will not fork and will only process one connection. This
option is only intended for debugging for the server. Multiple
-d options increase the debugging level. Maximum is 3.
tcpdump
phoenix said:When you mention "passphrase attempts" are you talking about the passphrase for the ssh key on the client?
If so, there's nothing to log on the server, as that is all done on the client. All the server sees if the key, nothing more.