ConfigServer Community Forum

CSF is great but I'm missing a LF_TEMPBLOCK_ALERT = x option.

You can use the LF_EMAIL_ALERT or LF_PERMBLOCK_ALERT options, but since permblocks won't be automatically removed (normally) and I do want to be alerted about other options (which I guess more people would like), the tempblock option is missing.

Temblocks will be removed automatically and generate a lot of email alerts, which in a...

Two accounts need to regularly login to my server via SSH and sync, so I end up getting a ton of emails all day long.

Can we add an option to ignore certain users when they login via SSH? (i.e., no email alert)

As it stands now, I'm going to have to disable LF_SSH_EMAIL_ALERT entirely, which will weaken security to my other accounts.

Just installed on a new Ubuntu 20 desktop. It turns out that Ubuntu has the iptables binaries in /usr/sbin/ now instead of /sbin/ .

On installing csf with the install.sh script, it failed to pick this up and the iptables locations in the csf.conf file were left as /sbin/

When these were changed manually the perl test script still fails to locate iptables.
sudo perl...

Hello,

Has the idea of a rule cluster been explored?

I think it would great if we could use cPanel API tokens to have servers share their deny/allow rules or deny IP list with others servers in a cluster of servers since attacks often travel along IP ranges and what not.

Maybe a caching system that you can set the frequency of deny IP sharing.

And to stack on top of the idea of clustering,...

We're 2 years further now and with Centos 8 this is really starting to get interesting.
In fact it lies in the netfilter's idea's to in time replace iptables with nftables.

Are there any plans from configserver to create a CSF firewall which works with nftables? Any insights on this?

I think it will be a long time before counties are assigned IP blocks :) so you may want to change the spelling to 'Country's' on the config file for CSF:
An example would be to list port 21 here then counties listed in
CC_DENY_PORTS cannot access FTP

on cpanel I can set LF_CPANEL_ALERT to get a mail if a user login into cpanel. On the DA version I can't find such an option.

can this function also be made available for DA? would be very practical.

thanks

This option can mask a users real IP address and hinder security. You should disable WHM > Tweak Settings > Proxy subdomains

This option does not find out in cPanel v86.0.18

DSHIELD blocklist is now secured (http s ) at:

/etc/csf/csf.blocklists
# DShield.org Recommended Block List
# Details:
#DSHIELD|86400|0|

Apr 8 11:27:50 server lfd : Unable to retrieve blocklist DSHIELD - Unable to download: Can't connect to www.dshield.org:80 (Connection timed out)
Apr 8 11:32:50 server lfd : Unable to retrieve blocklist DSHIELD - Unable to download: Can't connect to...

Tried to find something that allowed checking of IPs against AbuseIPDB and then if found then block, but couldn't find anything out there.
Hence writing this up.

Hello.

We suggest to add to the csf.blacklist.

Thank you!

We are using the csf RELAYHOSTS setting to prevent lfd from creating temporary firewall entries for customers who successfully check email. We are not on cPanel, so the setting isn't normally there, but it works perfectly once added. We have a separate daemon that maintains /etc/relayhosts with the IPs of recent successful connections.

The problem is that during a csf upgrade it seems to strip...

This IP is pounding one of our servers

These are from exim_mainlog:
2020-02-26 17:50:18 dovecot_login authenticator failed for ( ) :49078: 535 Incorrect authentication data
2020-02-26 17:50:20 dovecot_login authenticator failed for ( ) :43772: 535 Incorrect authentication data
2020-02-26 17:50:24 dovecot_login authenticator failed for ( ) :19374: 535 Incorrect authentication data
2020-02-26...

Hello,

I report the option:

LF_SU_EMAIL_ALERT

does not send email when user run the command sudo with -i option:

sudo -i

Could you please let me know why? If it' s a bug, is it possible to fix it?

Thank you.

Best Regards,

V R

Hey guys,

It seems my server is getting a lot of failed SASL auth attempts via the maillog lately. This doesn't seem to be part of CSF's default configuration, so a lot of bad attempts got through!

I added a custom rule for LFD to ban these bad SASL people, but I highly suggest you make it part of the default csf.conf

Here is the tutorial I followed to implement the custom rules on my own...

The directadmin installation suggests that CSF config should be managed by the directadmin and we have to set some bruteforce settings to 0 or disable them. By doing this, the CSF will trigger few warning messages.

From what I've known, CSF use a special installation config file for directadmin called csf.directadmin.conf and it contains a generic variable DIRECTADMIN=1

If we can use this...

Cyberpanel is a new and amazing opensource Control panel that supports Ubuntu and Centos.

Github:

It uses Postfix/dovecot for email.

Openlitespeed/Litespeed for the webserver.

Overview of log files and differences.

Cyberpanel Control Panel Accesslog
/usr/local/lscp/cyberpanel/logs/access.log

Cyberpanel Control Panel errorlog
/usr/local/lscp/cyberpanel/logs/error.log

Cyberpanel Control...

Hi fan of the product and thanks for offering it for free !

I had just a question/suggestion is it posible to list the ports seperate from the config.

Its just a bit awkward to have to go into the whole config to open ports and the overvieuw is lost since there is no order.
Its not a biggie just wondering if it can be formated differently

thanks !

Sometimes you need to make sure some client with dynamic IP will never be blocked by lfd.
However if you put the FQDN of the dyndns used by the client in csf.dyndns then you also allow this client to bypass the firewall completely, which is not the desired behaviour.
I suggest creating a new file, something like csf.dyndnsignore, that will have the behaviour of csf.ignore, but for dynamic dns.