What is firewall
What is firewall? Briefly explain it.
Expert
The firewall is a hardware or software installed to give security to the private networks joined to the internet. They can be implemented in both software and hardware, or a combination of both. All data leaving or entering the Intranet passes via the firewall that permits only the data meeting the administrator’s rules to pass via it.
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XTND XMIT: Irrespective of the mail retrieval protocol, typically email clients utilize the Message Submission flavor of the Simple Mail Transfer Protocol (SMTP) to send messages. POP3 have a protocol extension, called as "XTND XMIT” that let cl
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