Hi Ignacio,

apology for my English...

my name is George Ginis...

what you mean running/accessible via firewall and system-config-securitylevel? in XP or CentOS? and what is this?

the PuTTY I have in XP or in CentOS?

thank for your answer...

By default CentOS doesn't have ftp, telnet, nor rlogin services
running/accessible via firewall.
Use an ssh client such as PuTTY.
And don't forget to use system-config-securitylevel to open the ssh
port.