ConfigServer Community Forum

lfd is checking to see if syslog is running on more modern systems that have moved on to using journald in place of syslog.

It is flooding my inbox with email:

Time: Thu Aug 24 10:11:05 2023 -0500
Error: Failed to detect code in SYSLOG_LOG

SYSLOG may not be running correctly on server.mydomain.com

I have changed the /var/log/messages entries in /etc/csf/csf.conf to correctly point to...

I am using CSF on Debian 11 server, I installed Wazuh agent and I opened ports 1514 and 1515 in TCP OUT in csf.conf and in csf.allow
restart the CSF by csf -ra, also I used csf -f m but the ports still clocked and I see this in syslog

Aug 24 11:46:16 dns kernel: Firewall: *TCP_OUT Blocked* IN= OUT=ens5 SRC=172.31.31.157 DST=X.X.X.X LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=48959 DF PROTO=TCP...

Hello,

My server is running under Debian 12 with rsyslog. In kernel.log, there are lot of messages:

Firewall: *ICMP_IN Blocked*
Firewall: *UDP_IN Blocked*
Firewall: *UDP_OUT Blocked*

I already correctly set DROP_NOLOG directive so no log of TCP_IN nor TCP_OUT.
How can also block the logging of the above messages?

Thank you in advance.

I tried adding the following to csf.pignore:

pcmd:*/usr/local/cpanel/3rdparty/wp-toolkit/plib/vendor/wp-cli/wpt-wp-cli\.php*
pcmd:/opt/cpanel/ea-php74/root/usr/bin/php -r require '/usr/local/cpanel/3rdparty/wp-toolkit/plib/vendor/wp-cli/wpt-wp-cli\.php*
pcmd:/opt/cpanel/ea-php74/root/usr/bin/php -r require \'/usr/local/cpanel/3rdparty/wp-toolkit/plib/vendor/wp-cli/wpt-wp-cli\.php*

But it's...

I have 3 servers, the master-server knows of the slaves, the slaves do not know about each other, but they do know about the master.

When i send a csf -cd xxx.xxx.xxx.xxx from one of the slaves, the master-server blocks the IP but does not sync it on the other slave.
How do i configure my servers, so that if i send a csf -cd from one slave to the master, the master then syncs it to the other...

Since latest Ubuntu update (23.04) I've noticed that CSF stopped working correctly. I didn't notice any temp nor perm IP ban. There is also no mail notification about that, but in logfile I see that there is many same connections which are refused after some time/connections. I'm really not sure WHERE is the problem, because before update all seems work well. There is no new changes in...

Hello, I have seen other systems using csf and when your password is incorrect a certain amount of times it brings up a ban screen which you can then complete a captcha to unban. I have enter my captcha details and tried everything I could find on the web nothing works, currently when i get banned I just cant access my whm cpanel or server etc but I cant unban myself. Does anyone know why this...

I was trying to figure out why changes to blocklists and firewall configurations didn't seem to be taking effect. After digging into it more today, I think I have found a potential bug.

When restarting csf and lfd through csf -ra or through the web interface, the web interface reports back that CSF and LFD were restarted, however when checking the service status with systemctl status lfd.service...

Hello,

Suppose my server IP is 1.1.1.1. I have script in servers like 2.2.2.2 and 3.3.3.3 that they connect to 1 every 10 minutes. I'm receiving SSH alert email every 10 minutes.

I didn't find a way to exclude the 2 and 3 IPs so that there won't be emails from them.

I should mention that accessing to servers are limited to specific IPs, so I don't worry about this request.

Is there any way to...

Hi.

On a machine with CSF (although on others the problem has appeared after writing this ticket)

It has been installed and running for years.
The settings are very restrictive. Only port of entry 53 is open, the rest are not.
Access is only allowed to my ips. One of them dynamic, added to csf.dyndns

Today I couldn't get in. So I logged into the server via KVM (it's a proxmox)

The first thing...

Hello, i am getting these emails again and again with more used resources,
can anyone make me understand and how to deal with it.

Subj :: lfd on eu22.hostingape.com: Excessive resource usage: progteller (134791 (Parent PID:133259))

Email Content :

Time: Wed Jul 19 15:21:20 2023 +0200
Account: username
Resource: Virtual Memory Size
Exceeded: 512 > 512 (MB)
Executable:...

I am trying to ignore entries in my /usr/local/cpanel/logs/error_log, where my hosting company does not allow use of the cPanel Store directly. The hosting company also resells the cPanel add-on products.

My server environment is:
OS: CentOS v7.9.2009 STANDARD virtuozzo
cPanel Version: 110.0.9

The special need is that the error_log entry begins with a date/time, and then there are subsequent...

Have been using CSF for many years. But now started seeing a very strange behaviour in Debian 11. Even after doing csf --disable, I still see blocks happening. I verified CSF is stopped and there are no rules in iptables.

# iptables -L -n -v
# Warning: iptables-legacy tables present, use iptables-legacy to see them
Chain INPUT (policy ACCEPT 67390 packets, 53M bytes)
pkts bytes target prot opt...

Hi,

Following investigation there is a change in Perl 5.38 which breaks LFD.

As soon as one of the log files causes an error (e.g. is simply not present), all future log file reads on any file will fail until the error is cleared.

I solved this by adding a clearerr call before each log read, which is in the LFD file and the function getlogfile (around line 2195 for the function start).

I...

One would think this would be easy but apparently its not...or its not possible.

I need to block ALL IPs from a specific domain, the problem is the domain has hundreds of IP CIDRs and its virtually impossible to block them all from standard IP deny lists - as well, about every 2 to 3 months, they seem to add on new ones. My server is taking on more and more vulnerability scans from this domain -...

I am getting tons of emails with this alert.
I have opened port 9993 and works but I am getting theese errors

How I can exclude this service or allow all traffic?

What ports does ZeroTier use?#

It listens on three 3 UDP ports:

9993 - The default
A random, high numbered port derived from your ZeroTier address
A random, high numbered port for use with UPnP/NAT-PMP mappings

That means...

Dear friends,
I have a VPS Ubuntu, I changed the default port ssh from 22 to 2222. I want to know, after I changed the default port ssh, Does CSF block the access if they were failed to login?

Here my setting: LF_SSHD = 5 LF_SSHD_PERM = 1

Normally, CSF monitor SSHD service or port?

Thank you so much!

Hantam

Hello! maybe someone can help me, tried googling but found nothing, I have CSF working perfectly fine but every now and then I have to access my server thru the VNC client from Virtualizor, the problem is that when I open the terminal this is flooded by CSF output (which I already disabled from the logs) making it useless, and afaik this shouldn't be happening, anyone knows how to fix this?
Any...

Hi everyone,

We have several servers with CloudLinux 7, cPanel and LiteSpeed with these entries in csf.conf:
CPANEL_LOG = /usr/local/cpanel/logs/login_log
CPANEL_ACCESSLOG = /usr/local/cpanel/logs/access_log
On several other servers with the same configuration, however, these entries are not present. We do not define these entries with automation tools, and cPanel has no idea from where these...

Hi,

My server is sending these alerts non stop every 30 mins:

Exceeded: 587970 > 1800 (seconds)
Executable: /usr/lib/systemd/systemd-resolved

Exceeded: 419968 > 1800 (seconds)
Executable: /usr/sbin/mariadbd

Exceeded: 587991 > 1800 (seconds)
Executable: /usr/bin/rpcbind

However, I do have these lines in the csf.pignore file. Shouldn't they be ignored for exceeding the time limit?...