closing open ports Post: 7550

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1. Cybersecurity

firewall vs. closing ports

This may be kind of a stupid question, but here goes: Say I'm running a FreeBSD webserver (w/apache). I've managed to close ALL open ports (including SSH/telnet and portmapper), excepting '80' that apache is listening on. A netstat -a shows me nothing open. Discounting DoS/DDoS or holes in...

2. IP Networking

Closing out ports???

Hi all Is there a command that I can use to close out open ports? I did a netstat - a -p and got a long list of ports open (see sample below). I have disabled the some of the applications from /etc/services/. But there are still applications listening on certain ports. I need to know how to...

3. Shell Programming and Scripting

Check open ports every ...

Hello, i need a script (bash type maybe?..), which would check open ports on 127.0.0.1 and then compare open ports with "registered/allowed" port list and try to kill the program who uses unregistered ports. It would be great that script would be started lets say every 5 or 10 minutes. You see i...

4. Solaris

open ports solaris 8

Hello, I have a number of Solaris 8 Sun servers that have open ports that I cannot identify. I see some with 1013-1023 (which are reserved ports according to the IANA. Lsof does not identify these. I rebooted the server and they went off, but this morning I saw they were all back on again. Any...

5. Solaris

Open ports in solaris 10

hi guys, may i know the exact steps to open a port in solaris.i have some rough idea - which is adding the port number in /etc/services. but i am not sure the correct conventions, steps or any other steps. kindly advise.thanks guys !

6. Shell Programming and Scripting

closing unwanted open ports using scripts

i have a text file i.e file1.txt which shows open ports on particular system. i have another text file i.e file2.txt which shows a list of allowed ports on a system. for eg: file2.txt 22/tcp ssh 23/tcp telnet. can i have a script which would compare these text files ,file1 and file2 ...

7. UNIX for Dummies Questions & Answers

open ports and services

just a quick question: a. whats the simplest command to check open port and the corresponding services? example: bash-2.05# netstat -an | grep LISTEN *.199 *.* 0 0 49152 0 LISTEN *.8989 *.* 0 0 49152 ...

8. IP Networking

Open/close of ports

Hi, I have read some forum theads about the open and close ports. some points are clear and it is not working on my machine or something am i missing? I have commented out a port /etc/services, one application uses then when i use the telnet <hostname> <port_blocked> it shows connected.....

9. Shell Programming and Scripting

Closing open file descriptors from /proc/pid/fd

Hi guys, i need to write a shell script that will close file descriptors from /proc/pid/fd will calling exec 4<&- solve the problem ? thanks in advance :)

LEARN ABOUT SUNOS

rdate

rdate(1M)						  System Administration Commands						 rdate(1M)

NAME

       rdate - set system date from a remote host

SYNOPSIS

       rdate hostname

DESCRIPTION

       rdate sets the local date and time from the hostname given as an argument. You must have the authorization solaris.system.date on the local
       system. Typically, rdate is used in a startup script.

       The inetd daemon responds to rdate requests. To enable inetd response, the lines invoking the time command in inetd.conf must not  be  com-
       mented out.

USAGE

       The rdate command is IPv6-enabled. See ip6(7P).

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWrcmdc 		   |
       +-----------------------------+-----------------------------+

SEE ALSO

       inetd(1M), inetd.conf(4), attributes(5), ip6(7P)

SunOS 5.10							    15 Feb 2001 							 rdate(1M)