2
votes
1answer
83 views

Bad argument `127.0.0.1' in iptables

-A OUTPUT --destination ! '127.0.0.1' -m state --state NEW -j LOG --log-prefix "new_connection " --log-level 7 gives me Bad argument `127.0.0.1' What am I doing wrong? I used this docs : ...
1
vote
0answers
23 views

Configure syslog.conf file [duplicate]

How can I configure /etc/syslog.conf file in order to save log information about iptables in a specific file. I want to save these information separately, so I can extract what I want easily and ...
4
votes
1answer
74 views

iptables change log

Somehow an iptables rule was added to one of my systems. Does (or can) iptables keep a log about when and (maybe) who made a rule change? If iptables itself can't, is there a wrapper that might do ...
4
votes
2answers
2k views

Help configuring a custom log file for iptables

I'm trying to log dropped packages to a custom file instead of /var/log/messages. To achieve this, I have added these two lines at the end of my configuration file: -A INPUT -m limit --limit ...
2
votes
1answer
921 views

Log the dropped packets by IPTables only if its DROPPED by a specific rule

I have IPTables rules set on a Linux device. I have a particular rule to drop the packets, and I wish to log the packets only if they're dropped by that specific rule, and not by the other rules. ...
3
votes
2answers
408 views

Meaning of log entries from an iptables configuration

My router has Linux as its OS. The system log has a lot of rows about iptable and klogd that I don't understand, could someone explain them to me? The iptables setup: iptables -t nat -A PREROUTING ...
3
votes
2answers
248 views

What tool to execute a command on repeated syslog entries?

Occasionally, one VPS under my control gets bombarded with POP3 login attempts. They all fail, but the huge number of spawned processes and active connections pretty much amount to a DoS attack. When ...
3
votes
2answers
3k views

How to redirect kernel messages having the unique id substring into separate log file (using `rsyslog`)?

I am using iptables's logging feature to debug my network activity. I use certain prefix with --log-prefix parameter to uniquely identify messages in kernel log belonging to iptables output, for ...
5
votes
1answer
2k views

Is it possible to redirect a logging output of the iptables' LOG chain into a separate log file?

I don't want to mix iptables's log output with other system logs. How could I specify a dedicated log file for iptables LOG chains output?
2
votes
2answers
3k views

iptables log file

I have ubuntu and I want to know where can I find the log file of iptables? I find out /var/log/messages, but I am not sure this is a correct log file or not. And I also want to know when this log ...