smtp and pop3 ports

Sina.com: POP3 server address: pop3.sina.com.cn (Port: 110)SMTP server address: smtp.sina.com.cn (Port: 25) Sina.cn: POP3 server address: pop3.sina.com (Port: 110)-------> Pop.sina.comSMTP server address: smtp.sina.com (Port: 25) Sinavip: POP3

How do I set the SSL Service ports for starting SMTP, POP3, and IMAP4? 1. Generate a server certificate, log on to the Administrator, choose system Settings> certificate management, and click Add to add a server certificate. Note: Two English

Iptable-AINPUT-ptcp-dIP -- dport25-jACCEPTiptable-AINPUT-ptcp-dIP -- dport110-jACCEPT1, how do I close all ports? IPTABLES-AINPUT-DPROT1-65535-JDROP2 in the specified port that needs to be opened? (For example: 22) IPTABLES-AINPUT Iptable-a input-p

Http://dev.firnow.com/course/6_system/linux/Linuxjs/2008618/126266.html Reprinted Note:> after a lot of days of Sendmail and SMTP, I finally found this article is good. Article , Corresponding to my sendmail8.13 version, operating system redflag 2.6

One, what is the port. Before we start talking about ports, let's talk about what port is. Often heard on the network "My host opened a number of port, will not be invaded AH." "or" it would be safer to open that port. Again, my service should

QQ mailbox POP3 and SMTP server is what? QQ Mailbox POP3 and SMTP server address settings are as follows: Note: 1, the SMTP server requires authentication.2. If you are setting up SSL encryption for POP3 and SMTP, the ports are as follows:1)

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

1. Port 21:Port Description: port 21 is mainly used for FTP (File Transfer Protocol) services. Suggestion: Some FTP servers can be used by hackers to log on anonymously. In addition, port 21 will be used by some Trojans, such as Blade Runner, FTP

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

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