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Use command line IPSec to block a port

In win2003, The netsh IPSec command is used directly, ipseccmd is used for XP systems, and ipsecpol is used for 2000. Common parameters are as follows:-W Reg indicates that the configuration is written to the Registry and remains valid after restart.

How to use IPSec to block specific network protocols and ports

Source: http://support.microsoft.com/ SummaryInternet Protocol Security (IPSec) filtering rules can be used to protect Windows 2000-based computers from web-based attacks caused by viruses, worms, and other threats. This article describes how to

Use iptables to configure linux to prohibit all ports from logging on and opening specified ports

1. Disable all input forward output and only open it to some ports.The following is a command implementation: Iptables-P INPUT DROPIptables-P FORWARD DROPIptables-P OUTPUT DROP Run the command iptables-L-n to check whether the settings are

Hadoop-definitions of Computer Network Ports

Hadoop-definitions of Computer Network PortsPort Introduction The ports described in this article are all logical ports, which refer to the ports in the TCP/IP protocol. The port number ranges from 0 to 65535, for example, port 80 used to browse Web

Only less than 65535 port programming can be used to see which ports are open NETSTAT-ANP,NC command, Nmap command

1024 The following is reserved for the system, and from 1024-65535 is used by the userFor personal writing applications, try not to use a port number between 0 and 1024.1024 to 65535 we can program with. This is not a Linux rule, it is the socket

How to view, disable, and open windows system ports

Windows has many open ports. When you access the Internet, network viruses and hackers can connect to your computer through these ports. To change your system to a copper wall, you should close these ports, mainly including TCP 135, 139, 445, 593,

Linux under Iptables forbidden ports and open ports

1. Close all INPUT FORWARD OUTPUT only for certain ports.Here is the command implementation:Iptables-p INPUT dropiptables-p FORWARD dropiptables-p OUTPUT DROPRe-use the commandIptables-l-NCheck to see if it's all set up.Such a setup, we are only

Common Network Ports

In network technology, port has two meanings: one is physical port, for example, ADSL modem, Hub, switch, router is used to connect other network equipment interface, such as RJ-45 port, SC port and so on. The second is the logical port, which

Disable ports and open specified ports through iptables

1. disable all INPUTFORWARDOUTPUT to open only some ports. The following is the command implementation: iptables-PINPUTDROPiptables-PFORWARDDROPiptables-POUTPUTDROP and then use the command iptables-L-n to check whether the settings are correct.

How to disable ports and open ports through iptables

1. disable all INPUTFORWARDOUTPUT to open only some ports. The following is the command implementation: iptables-PINPUTDROPiptables-PFORWARDDROPiptables-POUTPUTDROP and then use the command iptables-L-n to check whether the settings are correct. you

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