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Hi, |
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On Sun, 18 Jun 2006 09:20:53 +0000 Mick <michaelkintzios@×××××.com> wrote: |
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> On 17/06/06, Hans-Werner Hilse <hilse@×××.de> wrote: |
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> > On Sat, 17 Jun 2006 23:09:57 +0200 Jarry <jarry@×××.net> wrote: |
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> > > But what if mail-server uses secure connection (SSL) and secure |
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> > > authentication? Could I use ssh-client in such a case? Telnet |
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> > > would not help... |
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> > |
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> > The OpenSSL executable has this facility built-in. See "man |
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> > openssl-s_client" (it has a basic server, too). |
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> |
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> Hmm . . . |
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> ===================================== |
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> $ openssl s_client -host pop.gmai.com -port 110 CONNECTED(00000003) |
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> 16228:error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown |
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> protocol:s23_clnt.c:601: |
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> ===================================== |
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> |
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> I guess it may only be good for checking the verification/exchange of SSL certs? |
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Nope. It acts like a telnet client after establishing an SSL connection: |
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---snip |
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hw@sub00421 ~ $ openssl s_client -connect pop.gmail.com:pop3s |
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CONNECTED(00000003) |
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[lots of info snipped] |
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+OK Gpop ready for requests from 123.45.67.89 n23pf2387435nfc |
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---snip |
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|
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For your test case: POP3 is usually on port 110, POP3S is usually on |
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port 995. If the SSL connection isn't set up on connection level at |
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start, but on an application configured stage afterwards, however, |
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s_client wouldn't work. An example would be STARTTLS on IMAP (not |
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IMAPS) and SMTP. |
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|
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-hwh |
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-- |
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