Hello All
I am running redhat linux 7.2 and would like to know how i can block telnetting to a specified port .
say for example i would like to block telnet acesses to port 80.
regards
Xiamin (5 Replies)
we disabled telnet on solaris 9 via previous a thread. We use CMS (call management system) supervisor which used port 23 (telnet). We cannot use telnet via local directive and it was shut down as stated when we shut down telnet in the inetd file. I cannot now log into the CMS box since port 23 is... (3 Replies)
Hi all,
I have a problem. I have machine names and their IP addresses in /etc/hosts file. My application does telnet on that machine host name. The application does not uses IP address for tenet. It will fetch the host name from /etc/hosts file.
Now the telnet server runs on customized port.... (6 Replies)
Hi,
I would like to create a simple script that will telnet a number of IP and Ports one after the other to confirm connectivity to those addresses.
I don't need to log on, just output to a file what the response is, i.e Escape Character, connectivity refused etc.
Complete newbie to... (6 Replies)
Hello all.
I have an old computer with M$-DOS 7. I want to use it like a dumb terminal, with telnet. I need to connect it to my desktop These are my questions:
How can i configure the serial port on dos?
How can i telnet form dos to the serial port?
How can i set up a telnet server on the... (12 Replies)
Hi, we have recently setup a new UNIX server with solaris 10 and I am having issue with with SMTP/sendmail.
telnet localhost 25 --- works
telnet hostname.domain.com 25 -- does not work.
# telnet hostname.domain.com 25
Trying 10.122.1.111...
telnet: Unable to connect to remote host:... (1 Reply)
My linux version is 2.6.18-194.e14 (Oracle enterprise linux).
Could you please tell me how to enable telnet on the server.
When I try to connect the server through another pc using telnet it is throwing error.
Connecting To <ip address>...Could not open connection to the host, on port 23.... (3 Replies)
Hi,
I am trying to set up a dev environment and I have Ubuntu server (10.16.1.92) and a CentOS VM (10.16.3.235) on this. On the CentOS I have a program running on port 5433. Now my problem is that I am unable to telnet this port from another Windows server whereas I can telnet port 22 from... (5 Replies)
Hi,
Well this is probably a silly one that I should know...but I don't !
I'm telnetting to various ports from a shell script and the telnet is echoing back that it's 'trying xxx.xx.xx.xx...' but not the port number it's trying!
Any help much appreciated
Thanks (1 Reply)
Hi,
my query is:
I am Login on server with IP xxx.xxx.xxx.xxx.. and i want a script where
i want to telnet to server with IP yyy.yyy.yyy.yyy using specific port and then execute a cmd there on server Y
please suggest (1 Reply)
Discussion started by: dodasajan
1 Replies
LEARN ABOUT DEBIAN
lsdistcc
lsdistcc(1) General Commands Manual lsdistcc(1)NAME
lsdistcc - simple distcc server discovery
SYNOPSIS
lsdistcc [OPTIONS] [FORMAT]
lsdistcc [OPTIONS] host1 ...
DESCRIPTION
lsdistcc autodetects listening distcc servers either by looking in DNS for hosts named according to a given FORMAT, or by checking the host
names given on the command line.
Hosts are considered good servers based solely on whether their name fits the format and whether they are listening on the right port (and
optionally whether they respond when you send them a compile job).
Scans for hosts named according to FORMAT (default is "distcc%d"; see printf(3)) and starting from 1, so hosts such as distcc1, distcc2,
and so on. Stops after 7 seconds or the first host name that does not resolve. Prints the names of all such servers listening on distcc's
port.
If a list of host names is given in the command line, lsdistcc will only check those hosts.
OPTIONS --help Displays summary instructions
-l Output latency in milliseconds after each hostname (not including DNS latency)
-n Print IP address rather than name
-x Append ,down to down hosts in host list
-tTIMEOUT
Set number of seconds to stop searching after [7]
-hHTIMEOUT
Set number of milliseconds before retrying gethostbyname [500]
-cCTIMEOUT
Set number of milliseconds before giving up on connect [900] (0 to inhibit connect)
-kKTIMEOUT
Set number of milliseconds before giving up on compile [1500] (0 to inhibit compile)
-mBITS Set number of bits of address that must match first host found [0]
-oOVERLAP
Set number of extra DNS requests to send [1]
-gDNSGAP
Set number of missing DNS entries to tolerate [0]
-rPORT Port to connect to [3632]
-PPROTOCOL
Protocol version to use (1-3) [1]
-pCOMPILER
Name of compiler to use [none]
-d Append DNS domain name to format
-v Verbose
EXAMPLES
Scan for servers named distcc1, distcc2, ... that provide a compiler named gcc-4.6 and include their latencies in the output:
$ lsdistcc -l -pgcc-4.6
Scan for a compiler named gcc-4.6 on the servers hosta, somehost, hostx, and hosty:
$ lsdistcc -pgcc-4.6 hosta somehost hostx hosty
To use the program in a build script, add the lines:
DISTCC_HOSTS=`lsdistcc`
export DISTCC_HOSTS
before the line that invokes make. Or, in a Makefile, add the line:
export DISTCC_HOSTS = $(shell lsdistcc)
EXIT STATUS
The exit status is 0 if any servers were found, and 1 otherwise.
Uses 'for i=1... sprintf(format, i)' to construct names of servers, stops after 7 seconds or at second server that doesn't resolve, prints
the names of all such servers listening on distcc's port. Default format is distcc%d.
SEE ALSO distcc(1), distccd(1), printf(3)
http://code.google.com/p/distcc/
AUTHOR
lsdistcc was written by Dan Kegel, Dongmin Zhang, and Manos Renieris.
This manual page was written by Daniel Hartwig for the Debian project.
1 May 2012 lsdistcc(1)