How to block a port Post: 302190930

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1. IP Networking

block telnet to specific port

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

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unix program that can port scan a c block of ips for proxies

can anyone tell me a unix program that can port scan a c block of ips for proxies? a fast one, with reliable results, that can load an ip list, or set an ip range, and specify ports thanks!

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My server is running on a port 16386, in the case when this port is blocked by some other application ( anti virus etc. ) or firewall then how do i know it's block? Is bind will return any specific error in this case. I have to know is it blocked or not?

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using firewall to block port

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5. Shell Programming and Scripting

to block the files uploading via the port

Hi Folks, I am not good in shell scripting. Please help me with my problem. Is it possible to block the file named "ss.cgi" using the port 25 to upload.

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Block local and remote port with iptables - Script BASH

Hello I'm beginner in the linux scripting and i would like to get help. I want to create a script that can block one or more Port even see all the TCP port. The ports must be blocked even when starting my machine. Of course requires a second script which will allow the ports that you want to...

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iptables to block port 25 only to a certain range

I want to limit all *outbound* traffic on eth0 (or all *.*) on port 25 to a specific (allowed) range... I.E. 192.168.1.5 (local ip) tries to connect to 1.2.3.4:25 (outside real world ip) It can proceed because 1.2.3.0/24 is the allowed range Now, 192.168.1.5 (local ip) tries to connect to...

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How to find port number wwn of particular port on dual port HBA,?

please find the below o/p for your reference bash-3.00# fcinfo hba-port HBA Port WWN: 21000024ff295a34 OS Device Name: /dev/cfg/c2 Manufacturer: QLogic Corp. Model: 375-3356-02 Firmware Version: 05.03.02 FCode/BIOS Version: BIOS: 2.02; fcode: 2.01;...

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Two public ip for server, how to block a port for ip2 but not for ip1

Hello, I am not sure that it's possible to set a server for explained below scenario: I have ordered a second ip for my streaming server. Both ip addresses are set and well responding to my ping requests. LAMP is installed into server. Assume that port 15678 is running for nginx. Admin port is...

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Block port for all except for one specific ip in Solaris11.4

Hi, I need to block ssh port 22 from all the servers except one server ip. Until solaris11.3 and below, I used to do like below(under /etc/ipf/ipf.conf),and it's working fine pass in quick from $server_ip to any port=22 block in quick from any to any port=22 But I tried almost same in...

LEARN ABOUT FREEBSD

kf

KF(1)							    BSD General Commands Manual 						     KF(1)

NAME

     kf -- securely forward tickets

SYNOPSIS

     kf [-p port | --port=port] [-l login | --login=login] [-c ccache | --ccache=ccache] [-F | --forwardable] [-G | --no-forwardable]
	[-h | --help] [--version] host ...

DESCRIPTION

     The kf program forwards tickets to a remote host through an authenticated and encrypted stream.  Options supported are:

     -p port, --port=port
	     port to connect to

     -l login, --login=login
	     remote login name

     -c ccache, --ccache=ccache
	     remote cred cache

     -F, --forwardable
	     forward forwardable credentials

     -G, --no-forwardable
	     do not forward forwardable credentials

     -h, --help

     --version

     kf is useful when you do not want to enter your password on a remote host but want to have your tickets one for example AFS.

     In order for kf to work you will need to acquire your initial ticket with forwardable flag, i.e.  kinit --forwardable.

     telnet is able to forward tickets by itself.

SEE ALSO

     kinit(1), telnet(1), kfd(8)

Heimdal 							   July 2, 2000 							   Heimdal

10 More Discussions You Might Find Interesting

1. IP Networking

block telnet to specific port

Discussion started by: xiamin

2. UNIX for Dummies Questions & Answers

unix program that can port scan a c block of ips for proxies

Discussion started by: user

3. IP Networking

How to know port is block..

Discussion started by: Saurabh78

4. Linux

using firewall to block port

Discussion started by: shantanuo

5. Shell Programming and Scripting

to block the files uploading via the port

Discussion started by: gsiva

6. Shell Programming and Scripting

Block local and remote port with iptables - Script BASH

Discussion started by: houstaf

7. UNIX for Dummies Questions & Answers

iptables to block port 25 only to a certain range

Discussion started by: holyearth