Mar 31, 2010

11 Cons Admin Network

Jakarta - The threat of breaking into the network system not only coming from the hackers, people in the company's own staff alias could do it.

Of course this requires an alertness of an admin to maintain the company's network security system in order not dijebol.

Here are 11 things that the writer can become a special concern for the reliability of the system admin for a network security company where you work to stay awake:
1.Mudah fooled and too trusting to the user / user you are, especially the female staff or friends who ask for help.

2.Gedung and the access door entrance / exit is not safe.

3.Dokumen-document and the disk or computer peripherals that have not been destroyed or not destroyed at the time was thrown into the trash can be read by others.

4.Password a weak or even no network systems using passwords at all.

5.Pertahanan network that is less strong because there is probably no firewall and so forth.

6.Akses weak controls, and a few missing files that should not be given access to users who do not need.

7.Sistem who do not patch.

8.Otentikasi web applications and information disclosure is not done haphazardly.

9.Sistem wireless running with default settings and without WEP, WPA or WPA2, is very risky and easy to dijebol.

10.SNMP to enable host tissue in a state of default or only use the guest mode to the community so it is very easy to dijebol.

11.Menggunakan firewalls, routers, remote access and dial-up equipment in a state of default or guest passwords or use passwords that are too easy, because hackers as a way to enter into the system.

Below is some port that is very often performed penetration (hacking) by mischievous hackers and staff to try hacking into a network security system:
TCP ports 20 and 21 FTP (File Transfer Protocol)
TCP port 23 Telnet (Terminal Emulation)
TCP port 25 SMTP (Simple Mail Transfer Protocol)
TCP and UDP port 53 DNS (Domain Name System)
TCP port 80 and 443 HTTP and HTTPS (Hypertext Transfer Protocol)
TCP port 110 POP3 (Post Office Protocol version 3)
TCP and UDP port 135 RPC
TCP and UDP ports 137-139 NetBIOS over TCP / IP
TCP and UDP port 161 SNMP (Simple Network Management Protocol)

Similarly, I hope some of this information can be used as reference for the network admin for more care in securing their computer systems and networks.


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