Check Remote Ports on Linux
$ nc -zv www.goyun.info 22
In the command above, the flag:
-z – sets nc to simply scan for listening daemons, without actually sending any data to them.
-v – enables verbose mode.
Check port range:
nc -zv goyun.info 8-888
PowerMTA sample virtual PMTA config file
Sample PowerMTA virtual PMTA config file # # E-mail address for mailer's administrator (please specify!) # postmaster admin@mydomain.com domain-key my-domain,*,/etc/dkim.key # # Settings per source IP address (for incoming SMTP connections) # < source 127.0.0.1> always-allow-relaying yes # allow feeding from 127.0.0.1 process-x-virtual-mta yes # allow selection of a virtual MTA max-message-size 0 # 0 implies no cap, in bytes smtp-service yes # allow SMTP service allow-mailmerge yes </ source > < source 23.45.67.89> # phplist or oempro installed always-allow-relaying yes # allow feeding from mailer.mydomain.com process-x-virtual-mta yes # allow selection of a virtual MTA max-message-size 0 # 0 implies no cap, in bytes smtp-service yes # allow SMTP service hide-message-source true remove-header Received allow-mailmerge yes </ source > < source
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