[CentOS] Problem SSH

Tony Schreiner schreian at bc.edu
Tue Oct 25 18:26:45 UTC 2005


> On Tuesday 25 October 2005 09:54, Mauricio Merlin wrote:
>
>> My Centos 4.1 only accept connections from localhost, my file conf is
>> default.
>> error: ssh: connect to host 192.168.1.78 port 22: No route to host
>>

On Oct 25, 2005, at 1:54 PM, Benjamin Smith wrote:
> Based on your question, I'll consider that you're pretty much using  
> a standard
> iptables config.
>
> edit /etc/sysconfig/iptables
>
> Add the following line, somewhere in the middle - it allows inbound
> connections to TCP port 22:
>
> -A RH-Firewall-1-INPUT -p tcp --dport 22 -j ACCEPT
>
> If you want to restrict access to a single IP address try this,  -  
> it allows
> inbound connections to port 22 from ip address 1.2.3.4:
>
> -A RH-Firewall-1-INPUT -p tcp -s 1.2.3.4/32 --dport 22 -j ACCEPT
>
> Then restart iptables
> /etc/rc.d/init.d/iptables restart;
>
> Cheers!
> -Ben


Or you could run /usr/bin/system-config-securitylevel for a GUI.

But -- if it turns out that you do not have firewall enabled, have  
you considered the possibility that you really don't have a route to  
the host? That's a network configuration issue on your client, not  
the ssh server.

Tony
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