SSH on Linux

To verify wether the SSH port is open or not, I use the Nmap tools:
Silver-Surfer:~ DragonX$ nmap -p22 192.168.1.10

Starting Nmap 4.53 ( http://insecure.org ) at 2008-02-13 10:52 ICT Interesting ports on 192.168.1.10:
PORT STATE SERVICE
22/tcp closed ssh

To open the port:
#/usr/sbin/lokkit

FTP error 500 OOPS: cannot change directory

After the installation of vsftpd on my centos5.1, I've tried to ftp but it return the following error messages:

Silver-Surfer:~ DragonX$ ftp 192.168.21.129
Connected to 192.168.21.129.
220 (vsFTPd 2.0.5)
Name (192.168.21.129:DragonX): mdalghazali
331 Please specify the password.
Password:
500 OOPS: cannot change directory:/home/mdalghazali
ftp: Login failed.

The reason? SELinux is in the way.... If the SELinux can understand English, I was saying something like this to it: "I know FTP isn't a secure SELinux, but I promise I'll stay behind the hardware firewall". Unfortunately the SELinux doesn't understand english (^^). So I've to used the Linux language to speak to it:

sudo /usr/bin/setsebool -P ftp_home_dir 1

That's it, now log in...

Ref : http://www.mailbeyond.com/ftp-error-500-oops-cannot-change-directory