similar to: iptables to block region-specific ip's?

Hello, Has anyone got fail2ban working and blocking ssh spambot atempts? My ssh is logging with a facility of authpriv which syslogd sends to /var/log/secure. That file has 600 permissions owned and group of root. I want to make it where fail2ban can access the needed file, yet not make it insecure in the process. I was not wanting to change permissions last time I did that on a log file a cron

Hello, I'm using fail2ban to block bots in conjunction with existing iptables rules. Here's a few rules from my iptables configuration: # # Set up a temporary pass rule so we don't lock ourselves out when #doing remote ssh iptables -P INPUT ACCEPT # # flush the current rules iptables -F # # Allow SSH connections on tcp port 22 iptables -A INPUT -p tcp --dport 22 -j ACCEPT # # Set

fail2ban might be good for this. On 04/05/2011 01:00 PM, asterisk-users-request at lists.digium.com wrote: > > Date: Tue, 5 Apr 2011 08:44:41 -0700 (PDT) > From: Steve Edwards<asterisk.org at sedwards.com> > Subject: Re: [asterisk-users] Iptables configuration to handle brute > force registrations? > > On Tue, 5 Apr 2011, Gilles wrote: > >> I'm no expert

I have fail2ban on my mail server monitoring Dovecot and Exim. I have noticed that it has stopped banning IP's. I have seen in /var/log/fail2ban.log: 2020-04-07 09:42:05,875 fail2ban.filter [16138]: INFO [dovecot] Found 77.40.61.224 - 2020-04-07 09:42:05 2020-04-07 09:42:06,408 fail2ban.actions [16138]: NOTICE [dovecot] Ban 77.40.61.224 2020-04-07 09:42:06,981

I am working to a CentOS 6 server with nonstandard iptables system without rule for ACCEPT ESTABLISHED connections. All tables and chains empty (flush by legacy custom script) so only filter/INPUT chain has rules (also fail2ban chain): Chain INPUT (policy ACCEPT) target prot opt source destination f2b-postfix tcp -- 0.0.0.0/0 0.0.0.0/0 ACCEPT all --

I created a filter and verified it with fail2ban-regex against actual lines in my log and it works. During restarts of fail2ban, only some previous ip's get banned immediately whereas some need a reoccurrence despite the jail's config specification of maxretry and findtime suggesting the entries mandate blocking. I'd assume the behavior after a restart is noe way if it weren't for

I've installed fail2ban, it seems to be working as it identified my failed test logins, BUT, my question is: what can I do when I see same invalid name trying to login to dovecot, different IP each time, how can I say block each IP as used by this name ? or it that a bad idea ? I can see two persistent attempts as so: I don't have such user 'ignacio' or 'julian' # grep

On Friday 19 April 2019 16:15:32 Kenneth Porter wrote: > On 4/19/2019 5:30 AM, Gary Stainburn wrote: > > I've followed one of the pages on line specifically for installing fail2ban on > > Centos 7 and all looks fine. > > Which page? It would help to see what they advised. > On Friday 19 April 2019 16:15:32 Kenneth Porter wrote: > On 4/19/2019 5:30 AM, Gary Stainburn

Hi all, I am trying to get fail2ban going on my server and its log message reports the following error 2009-02-16 17:42:05,339 ERROR: 'iptables -L INPUT | grep -q fail2ban-SSH' returned 256 2009-02-16 17:42:05,354 ERROR: 'iptables -D INPUT -p tcp --dport ssh -j fail2ban-SSH Is this because of the way the RedHat tool sets up the firewall? Thanks for any responses. -- "The

I'm running fail2ban to attempt to block malicious brute-force password dictionary attacks against ssh. They seem to be rolling through a block of ip addresses as the source to defeat this kind of screening, so I've set some ip addresses to be blocked in iptables. Here is the output of iptables -L (edited): Chain INPUT (policy ACCEPT) target prot opt source destination

On Monday 29 April 2019 02:21:05 Gordon Messmer wrote: > That's one approach.? I believe that you could modify fewer files by > setting "port = 0:65535" in your definition in "jail.local" and not > install firewallcmd-ipset.local. I have just tried this, and re-started fail2ban. It does not seem to have worked. I have looked at /var/log/exim/main.log and found

Hello List, with CentOS 7.2 it is not longer possible to run fail2ban on a Server ? I install a new CentOS 7.2 and the EPEL directory yum install fail2ban I don't change anything only I create a jail.local to enable the Filters [sshd] enabled = true .... ..... When I start afterward fail2ban systemctl status fail2ban is clean But systemctl status firewalld is broken ? firewalld.service -

hi all I've been reading this thread with interest. As a rather novice programmer. I'm not being humble here, I really am not very good, I can do stuff, but it takes a LONG time. My spaghetti code even has meatballs in it ! Not being a great programmer I'm not really able to code something up, but it occurred to me something could be scripted, are the other posters suggesting

I am testing the solr FTS following the guide here: http://things.m31.ch/?p=379 Now I am having problem when I try to test: # doveadm -v? index -u fail2ban at mydomain.com Inbox doveadm(fail2ban at mydomain.com): Error: fts_solr: Invalid XML input at 1:0: not well-formed (invalid token) (near: { ? "responseHeader":{ ??? "status":0, ??? "QTime":0, ???

I'm trying to setup and test fail2ban with dovecot I've installed fail2ban, I've copied config from https://wiki2.dovecot.org/HowTo/Fail2Ban, and, trying to test it, attempted multiple mail access with wrong password, but, get this: # fail2ban-client status dovecot-pop3imap Status for the jail: dovecot-pop3imap |- Filter | |- Currently failed: 0 | |- Total failed: 0 | `- File

On Mon, March 9, 2015 13:11, John Plemons wrote: > Been working on fail2ban, and trying to make it work with plain Jane > install of Centos 7 > > Machine is a HP running 2 Quad core Xeons, 16 gig or ram and 1 plus TB > of disk space. Very generic and vanilla. > > Current available epel repo version is fail2ban-0.9.1 > > Looking at the log file, fail2ban starts and stops

I've followed one of the pages on line specifically for installing fail2ban on Centos 7 and all looks fine. I've added a fail regex to /etc/fail2ban/filter.d/exim.conf as suggested on another page: \[<HOST>\]: 535 Incorrect authentication data which appears to be successfully matchnig lines in /var/log/exim/mail.log such as 2019-04-19 13:06:10 dovecot_plain

I got the fail2ban from epel. There were a number of issues relating to using a log file... logwatch was looking for both fail2ban and fail2ban.log logrotate file fail2ban added looked for fail2ban.log and then reset itself to syslog fail2ban itself went to syslog, over riding its fail2ban.log. took a while, but I use /var/log/fail2ban now, that finally worked through logrotates and logwatch.

Been working on fail2ban, and trying to make it work with plain Jane install of Centos 7 Machine is a HP running 2 Quad core Xeons, 16 gig or ram and 1 plus TB of disk space. Very generic and vanilla. Current available epel repo version is fail2ban-0.9.1 Looking at the log file, fail2ban starts and stops fine, there isn't output though showing any login attempts being restricted.

On Friday 19 April 2019 15:19:26 Pete Biggs wrote: > > I've added a fail regex to /etc/fail2ban/filter.d/exim.conf as suggested > > on another page: > > The standard exim.conf already has a 535 filter. Was that not working > for you? I was following the instructions as shown on the page. I did find after sending my post that there was already a regex in the standard