Nmap : Scanning Methods

Earlier we’ve discussed target specification in detail. But it is almost as import to choose your method to scan the target host. Nmap can scan in various algorithms, we should choose wisely considering the network, operating system and firewalls. Even though we usually don’t know what network architecture or operating system the target is affiliated […]

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Nmap : Target Specification in Detail

Every now and then, we need to scan ports as system administrators, even if the target machine is owned by us or not. To achieve this, nmap is the well known and reliable tool which is available for almost every platform. But to use nmap, we need to understand the background of it a little. […]

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Ephemeral port range for FTP

The standart linux distrubition calls that the ephemeral port range be between 1024 and 4999. We we all know that some of these ports are used for other more importand applications than FTP. So security is an issue because leaving those original ports open leads to major security holes. Rather than openning ports that need […]

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