When i do NMAP scan on the as Astaro Firewall WAN side why does it give open ports which i didn't open at all in the firewall...?
root@bt:~# nmap -v -A ***.***.***.***
Starting Nmap 5.61TEST4 ( Nmap - Free Security Scanner For Network Exploration & Security Audits. ) at 2012-05-17 09:51 CEST
NSE: Loaded 87 scripts for scanning.
NSE: Script Pre-scanning.
Initiating Ping Scan at 09:51
Scanning ***.***.***.*** [4 ports]
Completed Ping Scan at 09:51, 0.01s elapsed (1 total hosts)
Initiating Parallel DNS resolution of 1 host. at 09:51
Completed Parallel DNS resolution of 1 host. at 09:51, 4.07s elapsed
Initiating SYN Stealth Scan at 09:51
Scanning fw.hostname.com (***.***.***.***) [1000 ports]
Discovered open port 587/tcp on ***.***.***.***
Discovered open port 21/tcp on ***.***.***.***
Discovered open port 554/tcp on ***.***.***.***
root@bt:~# nmap -v -A ***.***.***.***
Starting Nmap 5.61TEST4 ( Nmap - Free Security Scanner For Network Exploration & Security Audits. ) at 2012-05-17 09:51 CEST
NSE: Loaded 87 scripts for scanning.
NSE: Script Pre-scanning.
Initiating Ping Scan at 09:51
Scanning ***.***.***.*** [4 ports]
Completed Ping Scan at 09:51, 0.01s elapsed (1 total hosts)
Initiating Parallel DNS resolution of 1 host. at 09:51
Completed Parallel DNS resolution of 1 host. at 09:51, 4.07s elapsed
Initiating SYN Stealth Scan at 09:51
Scanning fw.hostname.com (***.***.***.***) [1000 ports]
Discovered open port 587/tcp on ***.***.***.***
Discovered open port 21/tcp on ***.***.***.***
Discovered open port 554/tcp on ***.***.***.***