That is great feedback, it indicates that we have some underlying setup problem on our Linux system/firewall whatever, maybe a packet sizing issue or firewall port 53, those are indicated in postings.
Thanks for trying it out.
---------- Post updated at 09:48 AM ---------- Previous update was at 09:44 AM ----------
This works too:
So that further indicates an issue with our own DNS setup..
Can I use two different DNS servers in the one command in the form of primary and secondary.
Take this for example:
dig @<primaryAddress> @<secondaryAddress> MX domain.tld
So if primary address is down, it will use the secondary address as a backup. It seems to work when testing, but thought... (1 Reply)
Hi All,
Can please let me know what is the difference between the single line mode and multi line mode in regular expresions?
Thanks,
Chidhambaram B (3 Replies)
Hi,
I have these entries in the /etc/esolv.conf:
------------
domain xxxxxx
search yyyyyy
nameserver 127.0.0.1
nameserver aaaaaaaaaaaaaaaa
nameserver bbbbbbbbbbbbbbbb
-------------
When I use 'dig' or 'nslookup' command, like 'dig yahoo.com' it uses the localhost as the server.
I... (2 Replies)
I am relatively new to this forum and Unix scripting.
ksh script:
part 1 :will call a PL\SQL program will create 3 CSV file at the unix directory.
part 2 : will sftp the files to the EFT server.
Once the EFT server receives these file , it will transfer them to a shared windows folders.
... (3 Replies)
Dear All,
I want to get all the IPs of the A RECORDS for mail.google.com.
The aim is to deny access to these IPs.
I learnt that mail.google.com has several IPs.
I did the following steps:
1. whois google.com
2. I got the following as its DOMAIN SERVERS:
3.# dig @ns1.google.com a... (1 Reply)
Hey everyone,
Okay, so I've been having some fun with the dig command, and wanted to dig my old school. Two questions came up from this. So I:
dig @8.8.8.8 +recurse njcu.edu ANY
and the result is about 8 records, including the SOA record. One of them is this weird TXT record, and the other is... (1 Reply)
Hi,
I am testing some code to match a grep to see if one of the dns server exists but it does not seem to match:
ERROR:
=======
CRITICAL: google.com DNS : ns3.google.com NOT found
CODE:
=====
if ; then
echo "OK: google.com DNS : ns3.google.com exists"
else
echo... (5 Replies)
Hi there, I'm currently working on an exercise to connect to a Windows iscsi target via a Red Hat initiator machine. I'm using Windows Server 2012 and Red Hat Enterprise Linux v7.1
I have created the target on the Windows Server box and the two devices can communicate with each other. Verified... (3 Replies)
Discussion started by: Tech87
3 Replies
LEARN ABOUT DEBIAN
mason
MASON(1)MASON(1)NAME
mason - interactively create a firewall
SYNOPSIS
mason < logfile > rulefile
DESCRIPTION
This manual page briefly documents the mason command.
mason interactively generates a set of firewall rules for a Linux-based firewall. This is done by turning on full IP logging, watching the
logs for connections, and generating rules describing the connections seen. mason is familiar with most of the quirks of various connec-
tion types (such as ftp and IRC), and can output rules for 2.0.x ipfwadm, 2.2.x ipchains, and Cisco packet filters.
mason operates by reading in log file information from standard input and writing firewall rules to standard output. This allows mason to
work offline or on a separate system. Real-time firewall generation can be achieved with a command like tail(1).
Most users will want to run mason with a user-friendly interface such as mason-gui-text(1).
ENVIRONMENT
mason is configured using the following environment variables.
ECHOCOMMAND
Sets the type of firewall rules that mason should output to standard out. Allowed values include "ipfwadm" and "ipchains". By
default, mason outputs whatever kind of rules are supported by the currently running Linux kernel.
DOCOMMAND
Sets the type of firewall rules that mason should run immediately when a rule is generated. Allowed values include "ipfwadm" and
"ipchains". By default, mason outputs whatever kind of rules are supported by the currently running Linux kernel.
HEARTBEAT
If set to "yes", mason will output a "+" or "-" to standard error whenever a rule generated by mason has been triggered.
DYNIP Set this to the list of interfaces that have dynamically assigned addresses, separated by spaces.
SEE ALSO mason-gui-text(1)AUTHOR
This manual page was written by Jeff Licquia <jeff@luci.org>, for the Debian GNU/Linux system (but may be used by others).
MASON(1)