CSF and LFD not being restarted correctly on RHEL 7.9

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Firewalls4Life
Junior Member
Posts: 73
Joined: 21 Nov 2011, 18:43

CSF and LFD not being restarted correctly on RHEL 7.9

Post by Firewalls4Life »

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

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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

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systemctl status lfd.service
and

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systemctl status csf.service
, both show that they have not been restarted, and still show the running status from months prior.

When restarting csf and lfd through [icode]csf -ra[/icode] or through the web interface, CSF reports that it has been restarted. LFD outputs nothing. However when checking the service status with

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systemctl status lfd.service
and

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systemctl status csf.service
, both show that they have not been restarted, and still show the running status from months prior.

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root@myserver: /etc/csf
# systemctl status csf.service
● csf.service - ConfigServer Firewall & Security - csf
   Loaded: loaded (/usr/lib/systemd/system/csf.service; enabled; vendor preset: disabled)
   Active: active (exited) since Mon 2023-06-19 22:05:36 MDT; 1 months 28 days ago
 Main PID: 1394 (code=exited, status=1/SUCCESS)
    Tasks: 0
   Memory: 0B
   CGroup: /system.slice/csf.service

Jun 19 22:05:35 myserver.example.com systemd[1]: Starting ConfigServer Firewall & Security - csf...
Jun 19 22:05:36 myserver.example.com csf[1394]: (restoring ipsets) (restoring iptables) (restoring ip6tables)
Jun 19 22:05:36 myserver.example.com systemd[1]: Started ConfigServer Firewall & Security - csf.

Only until I restarted csf.service and lfd.service via the OS systemctl, did they actually get properly reloaded and restarted:

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root@myserver: /etc/csf
# systemctl restart csf.service

root@myserver: /etc/csf
# systemctl restart lfd.service

root@myserver: /etc/csf
# systemctl status csf.service
● csf.service - ConfigServer Firewall & Security - csf
   Loaded: loaded (/usr/lib/systemd/system/csf.service; enabled; vendor preset: disabled)
   Active: active (exited) since Thu 2023-08-17 11:52:00 MDT; 16s ago
  Process: 6487 ExecStop=/usr/sbin/csf --stop (code=exited, status=0/SUCCESS)
  Process: 6475 ExecStop=/usr/sbin/csf --initdown (code=exited, status=0/SUCCESS)
  Process: 6513 ExecStart=/usr/sbin/csf --initup (code=exited, status=0/SUCCESS)
 Main PID: 6513 (code=exited, status=0/SUCCESS)
    Tasks: 0
   Memory: 0B
   CGroup: /system.slice/csf.service

Aug 17 11:52:00 myserver.example.com csf[6513]: ACCEPT  all opt -- in * out lo  0.0.0.0/0  -> 0.0.0.0/0
Aug 17 11:52:00 myserver.example.com csf[6513]: LOGDROPOUT  all opt -- in * out !lo  0.0.0.0/0  -> 0.0.0.0/0
Aug 17 11:52:00 myserver.example.com csf[6513]: LOGDROPIN  all opt -- in !lo out *  0.0.0.0/0  -> 0.0.0.0/0
Aug 17 11:52:00 myserver.example.com csf[6513]: ACCEPT  udp opt -- in * out !lo  0.0.0.0/0  -> 0.0.0.0/0   udp spt:53
Aug 17 11:52:00 myserver.example.com csf[6513]: ACCEPT  tcp opt -- in * out !lo  0.0.0.0/0  -> 0.0.0.0/0   tcp spt:53
Aug 17 11:52:00 myserver.example.com csf[6513]: ACCEPT  udp opt -- in * out !lo  0.0.0.0/0  -> 0.0.0.0/0   udp dpt:53
Aug 17 11:52:00 myserver.example.com csf[6513]: ACCEPT  tcp opt -- in * out !lo  0.0.0.0/0  -> 0.0.0.0/0   tcp dpt:53
Aug 17 11:52:00 myserver.example.com csf[6513]: LOCALOUTPUT  all opt -- in * out !lo  0.0.0.0/0  -> 0.0.0.0/0
Aug 17 11:52:00 myserver.example.com csf[6513]: LOCALINPUT  all opt -- in !lo out *  0.0.0.0/0  -> 0.0.0.0/0
Aug 17 11:52:00 myserver.example.com systemd[1]: Started ConfigServer Firewall & Security - csf.

root@myserver: /etc/csf
# systemctl status lfd.service
● lfd.service - ConfigServer Firewall & Security - lfd
   Loaded: loaded (/usr/lib/systemd/system/lfd.service; enabled; vendor preset: disabled)
   Active: active (running) since Thu 2023-08-17 11:52:10 MDT; 17s ago
  Process: 6784 ExecStart=/usr/sbin/lfd (code=exited, status=0/SUCCESS)
 Main PID: 6794 (lfd - sleeping)
    Tasks: 2
   Memory: 33.1M
   CGroup: /system.slice/lfd.service
           ├─6794 lfd - sleeping
           └─6803 lfd UI

Aug 17 11:52:09 myserver.example.com systemd[1]: Starting ConfigServer Firewall & Security - lfd...
Aug 17 11:52:10 myserver.example.com systemd[1]: Started ConfigServer Firewall & Security - lfd.


Some details of the OS to help:

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root@myserver: /etc/csf
# cat /etc/os-release
NAME="Red Hat Enterprise Linux Server"
VERSION="7.9 (Maipo)"
ID="rhel"
ID_LIKE="fedora"
VARIANT="Server"
VARIANT_ID="server"
VERSION_ID="7.9"
PRETTY_NAME="Red Hat Enterprise Linux"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:redhat:enterprise_linux:7.9:GA:server"
HOME_URL="https://www.redhat.com/"
BUG_REPORT_URL="https://bugzilla.redhat.com/"

REDHAT_BUGZILLA_PRODUCT="Red Hat Enterprise Linux 7"
REDHAT_BUGZILLA_PRODUCT_VERSION=7.9
REDHAT_SUPPORT_PRODUCT="Red Hat Enterprise Linux"
REDHAT_SUPPORT_PRODUCT_VERSION="7.9"

root@myserver: /etc/csf
# uname -a
Linux myserver.example.com 3.10.0-1160.76.1.el7.x86_64 #1 SMP Tue Jul 26 14:15:37 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux


root@myserver: /etc/csf
# csf -v
csf: v14.19 (generic)
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