07-06-2016
Please tell us if this is what you want:
Block (blacklist) ip address for 15 minutes. Then restore it (remove from blacklist).
How do you intend to trigger this event? In other words, what has to happen to make the program or script blacklist an ip address?
This User Gave Thanks to jim mcnamara For This Post:
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
I would like to more about how csf &apf firewalls work ? how they use iptables right ? why we need to use them when we got iptables ?:confused: (0 Replies)
Discussion started by: nitin09
0 Replies
2. Shell Programming and Scripting
Hi
I need to append the following block of statements in the middle of the file:
#
openpipe tsdbdwn2
set -x
exec >> /tmp/tsdbdwn2.fifo 2>&1
#
This needs to be appended right after another block of statements:
if test $# -eq 0 ;then
echo "Safety check - do you really wish to run" $0 "... (5 Replies)
Discussion started by: aoussenko
5 Replies
3. UNIX for Advanced & Expert Users
I was reading a book on UNIX internals "The design of the UNIX Operating system." There are two memory structures that are confusing me:
1) Buffer cache
2) Inode cache
My questions are
1) Does a process get both buffer cache and Indoe cache allocated when it opens/creates a file?
2) if no,... (1 Reply)
Discussion started by: sreeharshasn
1 Replies
4. Shell Programming and Scripting
Hi ,
Can you pleas help me with below requirement?
There is only one big line in the file. I need to parse block by block(particular tag values, 'Val' in below case) to get different parameters.
Example:-
Portion of the Input string:-
<?xml version="1.1" encoding="UTF-8"?> <Data><Val ... (4 Replies)
Discussion started by: kmajumder
4 Replies
5. Shell Programming and Scripting
Hei buddies,
Need ur help once again.
I have a file which has bunch of lines which starts from a fixed pattern and ends with another fixed pattern.
I want to make use of these fixed starting and ending patterns to select the bunch, one at a time.
The input file is as follows.
Hi welcome... (12 Replies)
Discussion started by: anushree.a
12 Replies
6. UNIX for Advanced & Expert Users
I have a "main" file which has blocks of data for each user defined by tags BEGIN and END.
BEGIN
ID_NUM:24879
USER:abc123
HOW:47M
CMD1:xyz1
CMD2:arp2
STATE:active
PROCESS:id60
END
BEGIN
ID_NUM:24880
USER:def123
HOW:4M
CMD1:xyz1
CMD2:xyz2
STATE:running
PROCESS:id64
END (7 Replies)
Discussion started by: grep_me
7 Replies
7. Shell Programming and Scripting
I want to process a file block by block using sed, and if that block does not contain two patterns, then that complete block has to be printed.
See below for the example data.
................................server 1...............................
running process 1
running... (8 Replies)
Discussion started by: Kesavan
8 Replies
8. Cybersecurity
It appears i cant connect linux VPS server via SSH or i cant SCP any file to it and i cant wget any file TO it (from inside it) while CSF (Config Server Firewall, LFD is running. Just after isntall in default configuration and after changing TESTING mode to LIVE mode.
Trying to wget & install... (1 Reply)
Discussion started by: postcd
1 Replies
9. Shell Programming and Scripting
I have a file say "SAMPLE.txt" with following content,
P1
10,9:6/123456
P2
blah blah
P1
10,9:5/98765
P2
blah
blah
P1
blah blah
P2
I want a output file say "RESULT.txt" as,
Value1:123456
Value2:98765
Value3:NULL (17 Replies)
Discussion started by: garvit184
17 Replies
10. UNIX for Dummies Questions & Answers
I need to search for a block with the starting pattern say
"tabId": "table_1", and ending pattern say "]"
and then add a few lines before "]"
"block1":"block_111"
"tabId": "table_1",
"title":"My title"
.....
....
}]
how do I achieve it using awk and sed.
Thanks,
Lakshmi (3 Replies)
Discussion started by: Lakshmikumari
3 Replies
DNSBLOG(8) System Manager's Manual DNSBLOG(8)
NAME
dnsblog - Postfix DNS white/blacklist logger
SYNOPSIS
dnsblog [generic Postfix daemon options]
DESCRIPTION
The dnsblog(8) server implements an ad-hoc DNS white/blacklist lookup service. This may eventually be replaced by an UDP client that is
built directly into the postscreen(8) server.
PROTOCOL
With each connection, the dnsblog(8) server receives a DNS white/blacklist domain name, IP address, and an ID. If the address is listed
under the DNS white/blacklist, the dnsblog(8) server logs the match and replies with the query arguments plus an address list with the
resulting IP addresses separated by whitespace. Otherwise it replies with the query arguments plus an empty address list. Finally, The
dnsblog(8) server closes the connection.
DIAGNOSTICS
Problems and transactions are logged to syslogd(8).
CONFIGURATION PARAMETERS
Changes to main.cf are picked up automatically, as dnsblog(8) processes run for only a limited amount of time. Use the command "postfix
reload" to speed up a change.
The text below provides only a parameter summary. See postconf(5) for more details including examples.
config_directory (see 'postconf -d' output)
The default location of the Postfix main.cf and master.cf configuration files.
daemon_timeout (18000s)
How much time a Postfix daemon process may take to handle a request before it is terminated by a built-in watchdog timer.
postscreen_dnsbl_sites (empty)
Optional list of DNS white/blacklist domains, filters and weight factors.
ipc_timeout (3600s)
The time limit for sending or receiving information over an internal communication channel.
process_id (read-only)
The process ID of a Postfix command or daemon process.
process_name (read-only)
The process name of a Postfix command or daemon process.
queue_directory (see 'postconf -d' output)
The location of the Postfix top-level queue directory.
syslog_facility (mail)
The syslog facility of Postfix logging.
syslog_name (see 'postconf -d' output)
The mail system name that is prepended to the process name in syslog records, so that "smtpd" becomes, for example, "postfix/smtpd".
SEE ALSO
smtpd(8), Postfix SMTP server
postconf(5), configuration parameters
syslogd(5), system logging
LICENSE
The Secure Mailer license must be distributed with this software.
HISTORY
This service was introduced with Postfix version 2.8.
AUTHOR(S)
Wietse Venema
IBM T.J. Watson Research
P.O. Box 704
Yorktown Heights, NY 10598, USA
DNSBLOG(8)