nixCraft 🐧I was testing a mail server today by telnetting to it, and a young employee was shocked that you could do that. It made me feel like I was 60+ years old!
Florian Judith@nixCraft "Why does this guy can't spell EHLO ??"
Koree A. Smith 
@nixCraft I’ve been asked by actual other IT workers “are you hacking?” when doing exactly the same thing.
Duncan Blues
defraid@nixCraft real telnet (which you should not use) ? Or ssh which is same magic for youngsters ?
Django
Bernd Herd@defraid @nixCraft This wouldn't work with ssh. You need to use telnet (or netcat, oscat...) for it. See:
https://learn.microsoft.com/en-us/exchange/mail-flow/test-smtp-telnet?view=exchserver-2019
Cluster Fcku@defraid @nixCraft yeah, used to telnet to some machine in the local lab and message a fellow student sitting beside us, with "from: [email protected]" and details about them, that their citizenship was pre approved. Not sure if that's an acceptable prank today anymore.
bazkie 👩🏼💻 bitplanes 🎵@nixCraft hahaha noob kids! git gud! lrn2telnet
Nathan A. Stine@nixCraft ours was an open relay at college and we had fun with that.
Schamschula@nixCraft Reminds me of the time I was over at the SGI office in the late 1990's. We needed to access the Indigo workstations in the departmental computer lab on campus. I first telneted into the Linux server, and then over to the SGIs. The fellow was totally shocked that one could do this. Of course, these days s/telnet/ssh/.
SirWumpus 👾🍁@nixCraft Really blow their minds by doing all three SMTP, IMAP, and POP3.
@nixCraft And when you get asked
what is POP3, then you're in grey beard territory.
DrScriptt@sirwumpus @nixCraft how about POP2 & POP? 😈
@sirwumpus @nixCraft + HTTP
Then TLS versions of all of them.
@drscriptt @nixCraft TLS is a little tricky in you do need some client tool with with SSL/TLS. HTTP is always fun, but used often in REST people, might not realise how old it is.
@sirwumpus @nixCraft I was describing some recent TLS work as like me carrying an OpenSSL branded machete walking into the rainforest where all the leaves, vines, overgrowth, etc. are TLS certificates, keys, and the likes. The caption while gripping the OpenSSL machete is “let’s do this”.
@drscriptt @nixCraft
Yep. Done similar. Some younger devs look at me funny when I show them shell scripts driving a test suite or that I can use
Yep. Done similar. Some younger devs look at me funny when I show them shell scripts driving a test suite or that I can use
ed(1). Its like a black art to their Python or Ruby.
Tobias Klausmann@nixCraft Next up: using openssl s_client or gnutls cli to speak TLS to a server!
Barry Rowlingson@nixCraft ah, the joys of SMTP server remote code execution exploits...
Dr. King Schultz 🇵🇹@nixCraft The only telnet I did was to fetch HTTP pages manually
kaitou@nixCraft
Well, the only use for telnet nowadays *is* for TCP testing/debugging.
Well, the only use for telnet nowadays *is* for TCP testing/debugging.
Dave Addison@nixCraft I have also done this, but I am 60+ years old. 😞
Éric Bréhault@nixCraft do you mean shocked that telnet does not have SSL support or shocked that you were sending emails? 😂
@nixCraft Is she/he aware that your can enter a computer virus over the keyboard without any USB access or special software installed?
It might not be completely wrong to understand how computers work.
Nice to see...
https://media.ccc.de/v/38c3-fearsome-file-formats#t=505
Fearsome File Formats
Ham Ninja (Chris Claborne)@nixCraft Pretty soon, they’ll be calling you “Wally”.
Sterling@nixCraft
When I hear things like this it reminds me of the joke about the guy who returned his chain saw because it didn't cut wood.
The proprietor took it out and pulled the cord...vroom....
Then the customer said:
"What's that sound ! ! ! "
When I hear things like this it reminds me of the joke about the guy who returned his chain saw because it didn't cut wood.
The proprietor took it out and pulled the cord...vroom....
Then the customer said:
"What's that sound ! ! ! "
Andy H@nixCraft feeling seen here 😁
dr 🛠️🛰️📡🎧
@nixCraft The sad thing is that these are the same people designing new systems where you CAN'T inject an ultra-simple test signal or probe to do a system-level unit test
OldGeek@nixCraft damn I don't just feel it...
I may have sent some emails, allegedly, from whitehouse.gov in the day...
Marcelo Garbarino@nixCraft I am 60+ 😦 but didn't know this trick! Thanks for the laugh and the idea.
Slash909uk@nixCraft maybe use NC it does not send random terminal control codes/idents 😜😂. But yes, also been there!
You would think these naive ones had never read an RFC...
/s
Álvaro González@nixCraft I prefer."net catting", with nc