ConfigServer Community Forum

My server is Centos 5.6. I use Webmin to manage it. I have csf installed (can't remember if I installed it or what but it's version 6.37), but haven't been using it. I just use the Linux Firewall configuration tool in Webmin. However, my rules do not appear to be effective (working). In the csf configuration of Webmin, when I click on the View iptables Rules button, it appears that none of my...

Hi,

So just recently my own IP was suddenly blocked by CSF which cause some confusion, I have no idea why this happened but well all done and fixed, not the problem I opened this thread for. So while I was still unaware of this being the cause for me not loading my websites (for me) I was using: just-ping . com website to check my server.

There has a HUGE packet lose rate.. pretty much all...

Hello,Guys

I want to block all the Proxy,VPN and RDP to visit my server.

Anyone has got experiences.

Best Regards

Hi,
This is my first post here so bear with me please.
For the past two days, I have been receiving 4 emails repetitively:
Mail 1:
Suspicious Process running under user exim
Account: exim
Uptime: 610633 seconds

Executable:

/usr/sbin/exim

Command Line (often faked in exploits):

/usr/sbin/exim -bd -q1h

Network connections by the process (if any):

tcp: 127.0.0.1:25 -> 0.0.0.0:0
tcp:...

Hello,
we enabled LF_SU_EMAIL_ALERT and we fill file csf.suignore with our usernames but we still receive notification about su actions for those usernames.

We thought csf.suignore should just let LF_SU_EMAIL_ALERT ignore those logins but on description of csf.suignore was written:

# The following is a list of usernames that are ignored during the LF_EXPLOIT
# SUPERUSER check

So there is no...

Lately I've been seeing a lot of botnet activity so I setup a few IFTTT recipes to fire off emails to abuse departments of major dedicated & cloud hosting providers whenever their IPs get blocked by CSF / LFD.

The rules are basically as follows: If new email from search from:root@ lfd blocked softlayer OR theplanet, then forward email to abuse@softlayer and append the message

SoftLayer Abuse...

Hi I've noticed that some SKY IP ranges are not being correctly identified by the CC checking. On one server we have GB ignored, but I keep seeing LFD blocking them.

Time: Thu Feb 27 22:30:36 2014 +0000
IP: 5.65.121.x (GB/United Kingdom/xxx.skybroadband.com)
Failures: x (smtpauth)
Interval: x
Blocked: Temporary Block

If the country is being correctly identified via the geoip lookup - why is...

Hello,

In three installations of VPS with Centos 6, I have have configured csf to exchange information. All the cluster commands works perfect except the remove command.

My own ip got blocked. During the trial to identify, the C Block of my provider got blocked.

I was logged in Webmin in all servers. I have issued cluster remove ip address.

This did not function.

Hello,

I have updated csf to 4.46.

I found that Connection Tracking does not work although those ips are noted in tempip file.

For a very strick connection tracking, I have the following:

CT_LIMIT = 2
CT_INTERVAL = 200
CT_PORTS = 25,137,445

On the above ports there is constant spamming. The third connection should be imposing a temporary block (perm=0). This occurs very rarely although...

I think I am looking at a solution for this...kind of backward, but is there a way to tell CSF to only let IP addresses from USA log into WHM, CPanel, Email etc??

I really need to read up on CSF and understand it, but I am trying to calm a company down who is worried about the number of attempts they have had with people trying to log into their site.

Any help is apprecaited.

I'm just using the new option for using wildcards in logs as followed:
HTACCESS_LOG = /var/log/httpd/error_log /var/log/httpd/domains/*.error.log

Now we have a regexp.custom.pm like this:
if (($config{LF_HTACCESS}) and ($lgfile eq $config{HTACCESS_LOG}) and ($line =~ /^\ \ \ My protection (.*) banned IP: (\S+)/)) {
return ( Mytrap triggered ,$1, bottrap ,1, 80,443 , 3600 );
}

This makes a...

Probably something simple that I missed here, but I'd love some insight.

I changed the default FTP port on my host, and notified my members of the change. For the sake of conversation, I'll say I changed it to 888. I'm running Pure-FTPD, and change the bind port in pure-ftpd.conf.

I can FTP right in because my client is in the allow file, but nobody else can. I added the new port to csf.conf...

hello all - (newbie first time posting)

i have noticed my log files are filling up with wp-login.php attacks. my wordpress site itself is secured with a 2 second login-delay along with two separate captchas (yes its overkill but it helps me sleep at night)

however, there are thousands and thousands of attacks, most taking place between 4 and 6am (eastern standard time).

my problem is that one...

Can someone explain the process of changing the SSH on non-standard port,

(whm / cpanel)

Also, if this is changed to a non-standard port, what port is recommended?

After it is changed, what would need to be changed in CSF?

Thank you

I write this post because I have a problem I can not solve despite having made ​​the changes proposed in many other posts on the forum.
My server is set up to work in pure-ftpd
Some users are blocked firewall of some not
The changes that I have made ​​I have taken from this post:
viewtopic.php?f=6&t=4091&hilit=ftp+connection+tracking

Does anyone have the same problem or has found a way to...

Hello in my server i change the ssh port from 22 to 4176
i also open the tcp_in and tcp_out this port and delete the 22

I can login to the ssh. I also try from another ip to be blocked or alerted.
Nothing happened
In the allow ips this ip it is not stated there
also in deny

so what can i do to be informed or even alerted whenever someone tries to login in this port??

Thanks in adavnce

I'm seeing these (and similar) messages in my LFD log scanner files.

/usr/local/cpanel/logs/error_log:
repquota: Cannot open quotafile //quota.user: No such file or directory

What do they mean, and how can I fix them?

Hi.
I have many blocked IPs in csf with do not delete comment. But every day I got notifications from server about new brute force attacks via some of these IPs.
What's the problem ?

Hi

I work with ConfigServer Security & Firewall - csf v6.45 and I'm receiving this emails continuosly.

Server:
Primary IP:
Service: lfd
Notification Type: failed
Notification: lfd failed @ Thu Feb 20 13:59:39 2014. A restart was attempted automagically.
Service Check Method:
Number of Restart Attempts: 63
Memory Information:
Used: 356MB
Available: 1521MB
Installed: 1877MB
Load Information:...

I have interrupted the restart process of csf and now can do anything but connect from the console.

In the /var/lib/csf there is a file csf.lock

I I disable the firewall than it works?

What should I do??