Great suggestions by everyone. While we are on this topic ...
You did not mention if this was personal or work use. If you dont have a machine to spare, and don't plan on a firewall or are working on a long term firewall solution, the least that you should do, is to disable access to stuff like telnet, ftp, etc. Telnet, ftp is not secure since you are transmitting cleartext passwords over the internet.
In FreeBSD you can edit the /etc/hosts.allow file to turn off access to some or all of these services. For example, if you absolutely need telnet, then allow it from all the known domains and IPs.
Also check your /etc/services file to see if you can completely turn off some of them.
LivingFree points this appropriately, if you don't have ports open, you can't attack them!
Alright... this question comes from the fact that I'm trying to setup postfix to relay messages to Office 365 SMTP but its giving me connection refused... I read that if you have doubts if your port is open or not you should telnet to them so thats what I did.
This is a Red Hat 6.3 box.
My... (4 Replies)
It was officially announced that AllTheWeb is closing. Yahoo! no longer supports the function as per april 2011: AlltheWeb.com
Before the world turned to google by default, there used to be a plethora of search engines. Most of them gave a headache with the prolific use of colors and animated gifs... (4 Replies)
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 ... (1 Reply)
Could someone please settle an inter-office argument? Will your network traffic be slower through a firewall on any other port other than port 80. In other words, is port 80 faster than any other port you open on the firewall. I say no. Thanks in advance for the help! (2 Replies)
Discussion started by: cocolsmith
2 Replies
7. Post Here to Contact Site Administrators and Moderators
hi,
Just wondering if there could be a way to close threads whose creator has got the desired reply.
however if someone still wants to give a remark or suggest further on the thread one can still do so.
Besides on the control panel there should be some kind of selection criteria to view... (3 Replies)
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... (6 Replies)
/* Linux Slackware */
Nmap shows the following ports open on the gateway.
21/tcp ftp
22/tcp ssh
23/tcp telnet
25/tcp smtp
37/tcp time
80/tcp http
113/tcp auth
515/tcp printer
587/tcp submission
1024/tcp kdm
6000/tcp x11
-------------------------------
i would like to close as... (10 Replies)
SA-CHECK_SPAMD.RAW(1) User Contributed Perl Documentation SA-CHECK_SPAMD.RAW(1)NAME
sa-check_spamd - spamd monitoring script for use with Nagios, etc.
SYNOPSIS
sa-check_spamd [options]
Options:
-c secs, --critical=secs Critical ping response threshold
-h, -?, --help Print usage message
-H hostname, --hostname=hostname Hostname of spamd service to ping
-p port, --port=port Port of spamd service to ping
--socketpath=path Connect to given UNIX domain socket
-t secs, --timeout=secs Max time to wait for a ping response
-v, --verbose Verbose debug output
-V, --version Output version info
-w secs, --warning=secs Warning ping response threshold
DESCRIPTION
The purpose of this program is to provide a tool to monitor the status of "spamd" server processes. spamd is the daemonized version of the
spamassassin executable, both provided in the SpamAssassin distribution.
This program is designed for use, as a plugin, with the Nagios service monitoring software available from http://nagios.org. It might be
compatible with other service monitoring packages. It is also useful as a command line utility or as a component of a custom shell script.
OPTIONS
Options of the long form can be shortened as long as the remain unambiguous (i.e. --host can be used instead of --hostname).
-c secs, --critical=secs
Critical ping response threshold in seconds. If a spamd ping response takes longer than the value specified (in seconds) the program
will exit with a value of 2 to indicate the critical status.
This value must be at least as long as the value specified for warning and less than the value specified for timeout.
-h, -?, --help
Prints this usage message and exits.
-H hostname, --hostname=hostname
The hostname, or IP address, of the spamd service to ping. By default the hostname localhost is used. If --socketpath is set this
value will be ignored.
-p port, --port=port
The port of the spamd service to ping. By default port 783 (the spamd default port number) is used. If --socketpath is set this value
will be ignored.
--socketpath=path
Connect to given UNIX domain socket. Use instead of a hostname and TCP port. When set, any hostname and TCP port specified will be
ignored.
-t secs, --timeout=secs
The maximum time to wait for a ping response. Once exceeded the program will exit with a value of 2 to indicate the critical status.
The default timeout value is 45 seconds. The timeout must be no less than 1 second.
This value must be greater than the values specified for both the critical and warning values.
-v, --verbose
Display verbose debug output on STDOUT.
-V, --version
Display version info on STDOUT.
-w secs, --warning=secs
Warning ping response threshold in seconds. If a spamd ping response takes longer than the value specified (in seconds), and does not
exceed the critical threshold value, the program will exit with a value of 1 to indicate the warning staus.
This value must be no longer than the value specified for critical and less than the value specified for timeout.
EXIT CODES
The program will indicate the status of the spamd process being monitored by exiting with one of these values:
0 OK: A spamd ping response was received within all threshold times.
1 WARNING: A spamd ping response exceeded the warning threshold but not the critical threshold.
2 CRITICAL: A spamd ping response exceeded either the critical threshold or the timeout value.
3 UNKNOWN: An error, probably caused by a missing dependency or an invalid configuration parameter being supplied, occurred in the
sa-check_spamd program.
SEE ALSO spamc(1)spamd(1)spamassassin(1)PREREQUISITES
"Mail::SpamAssassin" version 3.1.1 or higher (3.1.6 or higher recommended)
AUTHOR
Daryl C. W. O'Shea, DOS Technologies <spamassassin@dostech.ca>
LICENSE
sa-check_spamd is distributed under the Apache License, Version 2.0, as described in the file "LICENSE" included with the Apache
SpamAssassin distribution and available at http://www.apache.org/licenses/LICENSE-2.0
perl v5.14.2 2014-02-14 SA-CHECK_SPAMD.RAW(1)