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Test whether the ports communicate between server

2025-01-16 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Servers >

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Shulou(Shulou.com)06/02 Report--

# 1.57##

[PROD #] telnet 109.120.1.86 7575

Trying...

Connected to 109.120.1.86.

Escape character is'^]'. -- > ctrl +]

Telnet >

# 1.58##

[PROD #] telnet 109.120.1.86 7575

Trying...

Connected to 109.120.1.86.

Escape character is'^]'. -- > ctrl +]

Telnet >

# 1.86##

[PRO #] netstat-an | grep 7575

Tcp 0 0 127.0.0.1.7575 127.0.0.1.13620 ESTABLISHED

Tcp 0 0 127.0.0.1.23299 127.0.0.1.7575 ESTABLISHED

Tcp 0 0 127.0.0.1.7575 127.0.0.1.13603 ESTABLISHED

Tcp 0 0109.120.1.86.7575 109.120.1.58.55238 ESTABLISHED-> established connection

Tcp 0 0109.120.1.86.7575 109.120.1.57.55243 ESTABLISHED-> established connection

Tcp 0 0 * .7575 *. * LISTEN

Tcp 0 0 127.0.0.1.13603 127.0.0.1.7575 ESTABLISHED

Tcp 0 0 127.0.0.1.7575 127.0.0.1.13595 ESTABLISHED

Tcp 0 0 127.0.0.1.13620 127.0.0.1.7575 ESTABLISHED

Tcp 0 0 127.0.0.1.7575 127.0.0.1.23299 ESTABLISHED

Tcp 0 0 127.0.0.1.13595 127.0.0.1.7575 ESTABLISHED

Tcp 0 0 127.0.0.1.7575 127.0.0.1.23305 ESTABLISHED

Tcp 0 0 127.0.0.1.23305 127.0.0.1.7575 ESTABLISHED

Udp 0 0 * .7575 *.

# Command interpretation #

-an or-- all: displays the Socket in all connections

-An or--: list the relevant addresses in the connection of this network type

-c or-- continuous: continuously lists network status

-C or-- cache: displays the cache information configured by the router

-e or-- extend: displays other relevant information about the network

-F or-- fib: display FIB

-g or-- groups: displays the list of group members with multi-broadcast function

-h or-- help: online help

-I or-- interfaces: displays the web interface information form

-l or-- listening: displays the Socket of the server under monitoring

-M or-- masquerade: shows a camouflaged network connection

-n or-- numeric: use the ip address directly, not through the domain name server

-N or-- netlink or-- symbolic: displays the symbolic connection name of the network hardware peripheral

-o or-- timers: display timer

-p or-- programs: displays the program identification number and program name that are using Socket

-r or-- route: display Routing Table

-s or-- statistice: displays the statistical table of network work information

-t or-- tcp: displays the connection status of the TCP transport protocol

-u or-- udp: displays the connection status of the UDP transport protocol

-v or-- verbose: displays the instruction execution process

-V or-- version: displays version information

-w or-- raw: displays the connection status of the RAW transport protocol

-x or-- unix: this parameter has the same effect as specifying the "- A unix" parameter

-- ip or-- inet: this parameter has the same effect as specifying the "- An inet" parameter.

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