how to ping smtp server port

ping command and network port:1.Ping 127.0.0.1127.0.0.1 is the local circular address, ping General instructions that the TCP/IP protocol works properly, otherwise TCP/IP is not normal.2.Ping IP address for this computerUse the ipconfig command to

In the code development process, we often need to use some network commands, as follows:(1) ipconfig command: Generally used to view our computer's IP address, gateway, subnet mask, DNS and other related information, such as:Ipconfig-all(2) Ping

TCP/UDP Common port number 7 Echo (PING)9 DiscardDaytimer19 Word Fuzhou Builder20/TCP FTP Data21/TCP FTP Control File Transfer Protocol22/TCP SSH Secure Login, File transfer (SCP), and port redirection23/tcp Telnet Unsafe Text transfer25/tcp SMTP

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 turn off ICMP (Ping) in Win2000 The full name of ICMP is the Internet control and messaging protocal, the Internet-controlled message/error message protocol, which is used primarily for the transmission of error messages and control

1. Batch processing with the parameter ping command@echo offecho Input you IP address ...set/p ip=echo Your IP number is%ip%.Ping%ip%Set ip=Pause2. Send Alarm ScriptFor counter = 1 to 3 Step 1SendMailNext Public Sub SendMail NameSpace =

Socket is a set of interfaces built on the TCP/IP protocol is not a protocolApplication layer: HTTP FTP SMTP WebTransport layer: Provides logical, not physical, communication between two applications (TCP UDP)TCP reliable connection-oriented

Python3 enables simple ping monitoring and launches alarm messages1, the implementation of the principle of the result of the ping command to get the packet loss rate and delay, when the packet loss rate and delay reached the preset value, the

Learn from the beginning (Novice must Read) (reprint) (a dream of floating) Literacy Articles What is a proxy server? Proxy server is a server between the browser and Web server, when you surf the Internet through a proxy server, the browser is

Ping "smtp.gmail.com" can pass, why Phpmailer but error Ping Gmail's SMTP server in cmd to get through, But in the Web site to do the sending of email programs, but always error: SMTP error:could not connect to SMTP host. Mailer ERROR:SMTP