إضغط لتفاصيل الإعلانات



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    Thumbs up Most known ports and port scanner program

    See the table below for an explanation of Ports:


    Port


    Detailed Description of Port


    80

    WebServer Port 80
    When a user types in your IP address or Host Name in their browser, the browser will look at the IP address on port 80 by default for the web pages.

    81


    WebServer Alternate Port 81
    When a user types in your IP address or Host Name in their browser, the browser will look at the IP address on port 80. If the Port is blocked, port 81 is used as an alternate port for hosting a website.

    21


    FTP Server Port 21

    When someone attempts to connect to your FTP Server, the FTP client will attempt the connection on Port 21 by default. Port 21 must be open for standard FTP clients to log in and connect to your server.
    22


    SSH Secure Shell Port 22

    If you run a SSH Secure Shell, this port is required for the SSH Client to connect to your server.
    23



    Telnet Server Port 23
    If you run a Telnet server, this port is required for the Telnet Client to connect to your server. Telnet can be used for other ports to check services, but in order to use telnet for remote admin and login, port 23 must be open.

    25

    SMTP Server Port 25

    When someone sends a mail message to your SMTP Server, the mail will attempt to come in to your server on Port 25. This is the standard SMTP (Simple Mail Transport protocol) port.
    2525



    SMTP Alternate Server Port 2525
    When someone sends a mail message to your SMTP Server, the mail will attempt to come in to your server on Port 25. Port 2525 is an alternate port used by TZO for the Store and forward services. This is a non-standard port, but useful if the standard SMTP (Simple Mail Transport protocol) port is blocked

    110


    POP Server Port 110
    When you run a mail server computer, users will typically log into that machine via POP3 (Post Office Protocol) or IMAP4 (Internet Message Access Protocol) to retrieve their mail. POP3 is the most popular protocol for accessing mailboxes.

    119


    News (NNTP) Server Port 119
    When you run a News server, typically News Clients wanting to connect to your news server will connect on port 119. This port needs to be open to run your own news server.

    3389

    Remote Desktop port 3389
    Port 3389 is used for Windows Remote Desktop. If you want to remotely connect to your computer for remote control, using the free XP Remote desktop requires port 3389 to be open.

    389

    LDAP Server Port 389
    LDAP or Lightweight Directory Access Protocol is becoming popular for Directory access, or Name, Telephone, Address directories. For Example LDAP://LDAP.Bigfoot.Com is a LDAP directory server.

    143

    IMAP4 Server Port 143
    IMAP4 or Internet Message Access Protocol is becoming more popular and is used to retrieve Internet Mail from a remote server. It is more disk intensive, since all messages are stored on the server, but it allows for easy online, offline and disconnected use.

    443

    Secure Sockets Layer (SSL) Server Port 443
    When you run a secure server, SSL Clients wanting to connect to your Secure server will connect on port 443. This port needs to be open to run your own Secure Transaction server.

    1503&1720

    Microsoft NetMeeting and VOIP Ports 1503 and 1720
    MS NetMeeting and other VOIP allows you to host an Internet call or VideoConference with other NetMeeting or VOIP users. NetMeeting is a free product that can be found on the Microsoft Website at http://www.microsoft.com

    5631

    PCAnywhere Port 5631
    When a PCAnywhere server is set up to receive remote requests, it listens on TCP port 5631. This allow you to run a PCAnywhere host and use the Internet to connect back and remotely control your PC.

    5900

    Virtual Network Computing (VNC) Port 5900
    When you run an VNC server to remotely control your PC, it uses port 5900. VNC is useful if you wish to remotely control your server

    You can check you open ports by using a lot of port scanners.
    Download now
    http://dw.com.com/redir?edId=3&siteI...%3Dpscan13.exe


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