Linux Shutdown SSH1 Service

Source: Internet
Author: User
Security colleague through Nusses scan found a server has SSH1 vulnerability: tcp/22:10882-ssh Protocol Version 1 Session Key retrieval. Usually because of useless ssh1, decided to close it.


ip:172.168.9.54

Os:suse10 SP3


1. Modify the configuration file

# view/etc/ssh/sshd_configprotocol 2

Protocol: ' 1 ' and ' 2 ' indicate only support for SSH-1 and SSH-2 protocols. "2,1" indicates support for both SSH-1 and SSH-2 protocols.


2. Restart the SSH service

#service sshd Restart


3. Verification

SSH1 Connection Access

# ssh-1 [email protected]protocol major versions differ:1 vs. 2

Discovery Ssh1 is closed

Linux Shutdown SSH1 Service

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