|
[Date Prev] [Date Next] [Thread Prev] [Thread Next] [Date Index] [Thread Index]
|
Re: [PLUG] favorite admin tools
|
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
sean finney wrote:
> On Wed, Jul 15, 2009 at 10:12:22AM -0400, Claude M. Schrader wrote:
>> 2) telnet {ip} {portnumber}
>> I couldn't begin to count the number of times I have had to telnet to port
>> 80, 25, or 143 to troubleshoot an overbearing firewall, misconfigured
>> service, or norton/macafee security suite type app. Eventually you will
>> know the SMTP protocol well enough to send an email by manually echoing
>> the commands into telnet.
>
> i prefer netcat myself which is more or less standard on new linux systems.
> you can do the same thing "nc host port", but quite a bit more as well,
> like:
>
> * do a simple connection test and return the result in $?
> * UDP
> * listen for connections instead of making them
>
>
> sean
>
Has anyone mentioned nmap which is a great tool for testing your firewall.
- --
Rev. LeRoy D. Cressy mailto:leroy@lrcressy.com /\_/\
http://lrcressy.com ( o.o )
Phone: 215-535-4037 > ^ <
Cell: 267-307-3527
gpg fingerprint: 62DE 6CAB CEE1 B1B3 359A 81D8 3FEF E6DA 8501 AFEA
For info on enigmail: http://lrcressy.com/linux/mozilla.pdf
For info on gpg: http://www.gnupg.org/
Jesus saith unto him, I am the way, the truth, and the life:
no man cometh unto the Father, but by me. (John 14:6)
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
iQEVAwUBSl4t6auxGqN1iGbbAQKYOwf/QYrrQhIgA/O1YxkPd11OSGmfBP8/5cZL
SOQ+dK4iwEQBaDDH6JkjCH1Y4Egzo/VZT6X9sEPBTo/IfK3HiEpuaxKsobruAlzJ
I+6eQklmlj1t6z4713gKHgRcQJNRNW62G+zZ95n0BwyPFPlI3UP6boCp5QibIzhB
2kp7JkD/8Nyn/i6h/YTmMVzo43UzSakMhoDCkRU7t3EeWaKVJEY4hCjpYPUOy/UZ
nmpEZAfunNDOQiJezU2riwtG+SwF4wp5UTeeUb6B/OcrOL6+3lPOd3bUnSPkN+Do
rzPZYjZkJ9Zf98FPtg8HiqjSstasfKrjcvnYWgyVGDTW5sP7Um8/WQ==
=OV+M
-----END PGP SIGNATURE-----
___________________________________________________________________________
Philadelphia Linux Users Group -- http://www.phillylinux.org
Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce
General Discussion -- http://lists.phillylinux.org/mailman/listinfo/plug
|
|