07-24-2014
Then why is my telnet connecting (or appearing to)?
Who says I am brute-force-scanning all these ports, I am testing specific IP addresses and ports over a VPN to a real-time application service that I need to ensure 24/5 availability on.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi there, I've an stupid question. If I make a telnet to a server from my computer and then execute a command that starts an application (on the server), when I disconnect, the application stops running, which is pretty obvious. Is it possible to add a flag at the end of the command so when I cut... (4 Replies)
Discussion started by: piltrafa
4 Replies
2. Programming
Hi Folks
I am not a c programmer .But i need help in writing a program which can do this any ideas on how to go about it .
i start a server on the target server where files need to be copied
start-server -port 5006 & ---start the server and listen it on a partcular port
on the source... (2 Replies)
Discussion started by: linuxdba
2 Replies
3. UNIX for Advanced & Expert Users
I'd like to do a data transfer without encryption but with a guarantee that my data comes from a legit source. I'm thinking something that uses a public key scheme to sign the data.
Does anyone know of something like that?
Thanks!
-Pileofrogs (1 Reply)
Discussion started by: pileofrogs
1 Replies
4. Shell Programming and Scripting
Is there a way how to react on the message a client sent to the server?
I would like as the client sent message to server: "get information such and such" and server would answer.
Thank you for reply! (6 Replies)
Discussion started by: MartyIX
6 Replies
5. Solaris
hello guys, i want to install netcat on my solaris. after i tar and gunzip netcat i'm confuse what do i must to do ? please help me to install netcat on my solaris. I'm beginner :( (2 Replies)
Discussion started by: praset
2 Replies
6. Linux
Hello,
Thank you very much for the line nc -lp <port> . I tried to run simple chat session with nc as it's shown in catonmatDOTorg but failed miserably with that syntax inspite of opening port 7777 by iptables . But your command example is working nicely.
So a bagful of thanks :))
Only one... (0 Replies)
Discussion started by: vectrum
0 Replies
7. Shell Programming and Scripting
Hi;
I have a url like
http://localhost:8080/examples/jsp/dates/nextPageToPost.jsp?name=ajay&password=pas&sex=Male&check=on&nationality=USA&description=aa&submit=submit
in which i want to use nc for http post for parameters like "name","password"....etc
can neone please help me how to do that... (3 Replies)
Discussion started by: ajaypadvi
3 Replies
8. IP Networking
Hi all,
I know my question is regarding Windows and not Linux, but I simply need people who know Netcat pretty well and I'm guessing here is a good place for that. So on with my question.
I'm doing some research, and I was playing around with netcat on a WinXP VM but I can't seem to get... (0 Replies)
Discussion started by: MrCrumbs
0 Replies
9. Shell Programming and Scripting
Hi
Need help to connect from Ubuntu to Windows using NetCat nc
I can not get my script to send new-line
Her is what I have tried(sleep 2 ; echo user ; sleep 1; echo pass; sleep 2; echo netstat) | nc -t 10.10.10.34 23
gives this outputÿý%ÿûÿûÿý'ÿýÿýÿûWelcome to Microsoft Telnet Service
... (1 Reply)
Discussion started by: Jotne
1 Replies
10. Emergency UNIX and Linux Support
Dear Linux guru's
I am trying to create a webserver using nc (netcat only) on RHEL 7.2 running on bash shell.
now the easy thing is to get nc listing to a port and respond back
$ while true; do { echo -e 'HTTP/1.0 200 OK\r\n'; set; } | nc -l 7877; done
This when called from a... (3 Replies)
Discussion started by: chakrapani
3 Replies
LEARN ABOUT REDHAT
ppmtosixel
ppmtosixel(1) General Commands Manual ppmtosixel(1)
NAME
ppmtosixel - convert a portable pixmap into DEC sixel format
SYNOPSIS
ppmtosixel [-raw] [-margin] [ppmfile]
DESCRIPTION
Reads a portable pixmap as input. Produces sixel commands (SIX) as output. The output is formatted for color printing, e.g. for a DEC
LJ250 color inkjet printer.
If RGB values from the PPM file do not have maxval=100, the RGB values are rescaled. A printer control header and a color assignment table
begin the SIX file. Image data is written in a compressed format by default. A printer control footer ends the image file.
OPTIONS
-raw If specified, each pixel will be explicitly described in the image file. If -raw is not specified, output will default to com-
pressed format in which identical adjacent pixels are replaced by "repeat pixel" commands. A raw file is often an order of magni-
tude larger than a compressed file and prints much slower.
-margin
If -margin is not specified, the image will be start at the left margin (of the window, paper, or whatever). If -margin is speci-
fied, a 1.5 inch left margin will offset the image.
PRINTING
Generally, sixel files must reach the printer unfiltered. Use the lpr -x option or cat filename > /dev/tty0?.
BUGS
Upon rescaling, truncation of the least significant bits of RGB values may result in poor color conversion. If the original PPM maxval was
greater than 100, rescaling also reduces the image depth. While the actual RGB values from the ppm file are more or less retained, the
color palette of the LJ250 may not match the colors on your screen. This seems to be a printer limitation.
SEE ALSO
ppm(5)
AUTHOR
Copyright (C) 1991 by Rick Vinci.
26 April 1991 ppmtosixel(1)