윈도우도 그렇지만 맥도 마찬가지로 텔넷이 기본 활성화가 되어 있지 않아서 텔넷 활성화 하는 방법. MacBookPro ~ % brew install telnet ==> Downloading https://ghcr.io/v2/homebrew/core/telnet/manifests/294 ##################################################################################################################################################################################### 100.0% ==> Fetching telnet ==> Downloading https://ghcr...

[darksharavim]cat telnet.sh #!/bin/sh tpipe(){ sleep 1; echo 'helo nice' sleep 1; echo 'quit' } tpipe | telnet smtp.nate.com 25 결과를 저장해야할 경우 [darksharavim]cat telnet.sh #!/bin/sh tpipe(){ sleep 1; echo 'helo nice' sleep 1; echo 'quit' } tpipe | telnet smtp.nate.com 25 | tee result.txt [darksharavim]cat result.txt Trying 117.53.114.15... Connected to smtp.nate.com. Escape character is '^]'. 220 *..

default port(143)connect # 접속 [darksharavim]telnet localhost 143 # 로그인 a login [mailaddress] [password] # 메일박스 선택 b select [mailbox] * FLAGS (\Answered \Flagged \Draft \Deleted \Seen) * OK [PERMANENTFLAGS (\Answered \Flagged \Draft \Deleted \Seen)] Flags permitted. * 1 EXISTS * 0 RECENT * OK [UIDVALIDITY 1] UIDs valid * OK [UIDNEXT 150] Predicted next UID * OK [NOMODSEQ] No permanent modsequence..

pop3연결 [darksharavim.tistory.com]telnet localhost 110 Trying ::1... telnet: connect to address ::1: Connection refused Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. +OK 10 POP3 service ready. user test7 +OK Password required for test7@darksharavim.tistory.com pass test1234 +OK Maildrop has 2 messages (1716 bytes) list +OK 2 1716 1 854 2 862 . 명령어 user : 사용자 아이디 입력 pass : ..

To connect using the TLS protocol on port 587, use:[darksharavim]openssl s_client -starttls smtp -connect smtp.mail.nate.com:587 smtp-ssl(465)[darksharavim]openssl s_client -connect smtp.mail.nate.com:465 imap-ssl(993)[darksharavim]openssl s_client -crlf -connect imap.nate.com:993https://stackoverflow.com/questions/14959461/how-to-talk-to-imap-server-in-shell-via-openssl How to talk to IMAP serv..