Hi,
So that potential responders will have an idea of what they're dealing with let me say that while I am a UNIX newbie I have been in IT for over 10 years.
We have several SUN boxes running ver 5 of the OS that have been sitting dormant for some time as they were part of a now defunct... (3 Replies)
Hi,
I will like to allow access to the mysql port (3306) to certain IP address. All other IP's should be automatically blocked. What is the best way to do this? (8 Replies)
I am trying to block ALL traffic except when from ports 9100,22,23 to destination network 192.0.0.0 (my WAN): 2 networks 192.0.3.0 with static route to 192.0.0.0
Shouldn't this work?:
iptables -A INPUT -p tcp -d 192.0.0.0/24 --dport 22 -j ACCEPT
iptables -A INPUT -p tcp -d 192.0.0.0/24... (3 Replies)
i want to kill a tcp connection by killing its pid
with netstat -an i got the tcp ip connection on port 5914
but when i type ps -a or ps-e there is not such process running on port 5914
is it possible that because i do not log on with proper user account i can not see that process running? (30 Replies)
Hi All,
I successfully configured a DEBIAN Lenny bridged firewall
using ebtables.
The bridged interface is br0.
The ethernet interface are eth0 & eth1 respectively.
All the traffic are transparently passing my firewall but i need to find & block temporarily the bandwidth abusers.
Can... (1 Reply)
hi guys
I doing some collocation for a customer, customer requested to use other port for ssh not the default one. OK no problem
and customer will be using rsync to sync backups among other things
I know we have to open port let's say port 5999 for ssh since we are using that one now but I... (1 Reply)
Hi Experts,
I am receiving below error while trying to connect port 8080.
Could not open connection to the host, on port 8080 : connection refused.
iptables configuration
/etc/sysconfig/iptables
# Firewall configuration written by system-config-firewall
# Manual customization of... (1 Reply)
If I would like to know what connection , data , traffic in a network port ( eth0 ) , what can I do ?
ps. because I always found the network is very slow , so I would like what the network port is doing .
Thanks
Login ID ust3 is currently in read-only mode for multiple infractions. Creating... (0 Replies)
Hi Friends,
How to do port forwarding in AIX? We would like to re route traffic from port A to port B on AIX LPAR.
for example: my application is using 8080 port on LPAR and would like to use the 8081 instead of 8080. By default application was configured with 8080. But instead of changing... (2 Replies)
Discussion started by: System Admin 77
2 Replies
LEARN ABOUT DEBIAN
rblcheck
RBLCHECK(1) User Commands RBLCHECK(1)NAME
rblcheck - check if an IP address is blacklisted
SYNOPSIS
rblcheck [-qtlcvh?] [-s <service>] <address> [ <address> ... ]
DESCRIPTION
rblcheck is a very basic interface to DNSBL listings such as those operated by The Spamhaus Project or Spamcop.
The general idea behind DNSBL listings is rapid lookup of IP addresses using DNS (for example, for blacklisting IP addresses because of
abuse). Each IP address is reversed and has a domain name attached to it; for example, the IP address 127.0.0.2 would become 2.0.0.127, and
then a domain such as "relays.visi.com" would be added to it. You would then try to resolve the result (ie. 2.0.0.127.relays.visi.com); if
you receive a positive reply, then you know that the address is listed. Further information can also be queried, such as text descriptions
of why the address was listed.
OPTIONS -q Quiet mode; outputs only matching IP address(es) - use return code (see below).
-t Print a TXT record, if any.
-m Stop checking after first address match in any list.
-l List default DNSBL services to check.
-c Clear the current list of DNSBL services.
-s <service>
Toggle service in the DNSBL list.
-h, -? Display the help message.
-v Display version information.
<address>
An IP address to look up; specify `-' to read multiple addresses from standard input.
RETURN CODES
When invoked, rblcheck returns either 0 (to indicate error, or that the address was not in any of the listings), or a positive number
(indicating the number of listings that the IP address was found in).
SEE ALSO
/usr/share/doc/rblcheck/, esp. /usr/share/doc/rblcheck/rblcheck.txt.gz
COPYRIGHT
Copyright (C) 1997, 1998, 1999, 2000, 2001 Edward S. Marshall
Man page created for the Debian Project with the help of help2man(1) based on the output of `rblcheck -h` and the above mentioned text file
by Gregor Herrmann <gregor+debian@comodo.priv.at>.
rblcheck 1.5-20020316 August 2004 RBLCHECK(1)