A major advantage of Internet systems is that it is as convenient to manipulate computers on the other end of the world as it is to use computers on the other side. This chapter describes how to use the telnet service system to connect to a remote
Introduction
The telnet application not only facilitates remote login, but also provides hackers with another intrusion method and backdoor. However, while enjoying the convenience that Telnet brings to you, do you really know about Telnet?Learn
The history of email is longer than the web, until now, email is also a very broad application of the Internet services.
Almost all programming languages support sending and receiving e-mail, but wait, before we start coding, it's important to
When talking about sending and receiving emails, we can't help but talk about the two network protocols closely related to email transmission, namely POP3 and SMTP, these two protocols are the core of email receiving and sending, among which:
POP3
take 163 mailbox as an example →→→→→→→telnet receive mail
Note: All response +ok (OK) or-err (NO)
1. Connection →telnet pop.163.com 110
2. Username →user * * *
3. Password →pass * * *
4. After verifying OK, the terminal will display the
When talking about sending and receiving emails, we can't help but talk about the two network protocols closely related to email transmission, namely POP3 and SMTP, these two protocols are the core of email receiving and sending, among which:POP3
Ways to send mail using an external mailbox
Bin/mail will send mail by default using local SendMail, which requires the local machine to install and start the SendMail service, which is cumbersome to configure and will cause
Ways to send mail using an external mailbox
Bin/mail will send mail by default using local SendMail, which requires the local machine to install and start the SendMail service, which is cumbersome to configure and will cause
ways to send mail using external mailboxes
Bin/mail will use the local sendmail to send mail by default, which requires local machines to install and start the SendMail service, is cumbersome to configure, and can cause
Ways to send mail using an external mailbox
Bin/mail will send mail by default using local SendMail, which requires the local machine to install and start the SendMail service, which is cumbersome to configure and will cause
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