Plesk 12.x / Linux :: Firewall Resetting Itself Autonomously?
Oct 25, 2014
Running plesk 12.018 on OpenSUSE 13.1
What causes the firewall to change / reset itself periodically? I enabled the plesk firewall, but some time later it is reset itself and switched to the opensuse firewall (completely different rule set, which blocks most of the ports).
I then disabled the plesk firewall and loaded my own iptables rule set via iptables-restore command. However a few hours later, it also gets reset to the opensuse firewall. The std. opensuse firewall closes most of the ports, so then our email is blocked.
I would like to permanently switch off any plesk handling of the firewall and manage the iptables myself. How to do this?
I also have fail2ban running and defined my own jail.local files.
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Dec 10, 2014
I have found through the KB the way to do it server wide but I was wondering if there was still a way to reset default domain permissions per domain.
/usr/local/psa/bin/repair --restore-vhosts-permissions - to restore all domain permissions.
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Apr 25, 2015
I am running CentOS 5.5, Plesk 12.
Access_log and error_log are being rotated around 10AM daily for my server.
But for busy days access_log and error_log gets very big to inspect. Is there any way that I can manually reset the logs for the time being but without changing the daily rotation time?
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Mar 12, 2014
From what I can tell the vhosts on my Plesk Panel keep resetting (I think around once a day), all my webstatistics (AWStats) begin to 404 and I have a Wordpress installed in the root of a domain which is now displaying the "Web Server's Default Page" (any sub-directory of the Wordpress install gives a 404 such as the wp-admin directory). The way I've fixed this temporarily is to run "%plesk_cli%
epair.exe" --update-vhosts-structure. I do not see any errors or warnings in the event viewer or log files.
On another note is there a way to increase the logging for event viewer to include more than just errors (such as informational) to make it easier to track down issues?
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Apr 7, 2015
How to activate/enable the firewall by cli, does this is possible?
Firewall module is installed.
Option in plesk GUI working well.
Does this is possible ? If yes how ?
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Jan 15, 2015
Is that possible to block baidu without specifying whole list of IDs it's using ?
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Dec 17, 2014
I have these problems since version 11.5. Now I have installed version 12 on centos . FTP works fine and is super fast and speedy until i enable PLEK FIREWALL, I also tried to add passive port range 60000-65534 to Plesk Firewall rules.
But nothing works.
It takes like 10 times longer to Login + List Files + Make changes using FTP. We applying changes via FTp and its very slow. We can use plesk file manager but its very inconvenient way for quick file uploads and changes.
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Nov 26, 2013
I already posted this as a bug report and now wanted to inform other users.
Starting with Plesk 11.5, the file "/opt/psa/var/modules/firewall/firewall-emergency.sh" contains the following line:
Code:
rm -f /opt/psa/var/modules/firewall/active.flag
That line stems from updating
Code:
Preparing to replace psa-firewall 11.0.9-debian6.0.build110120608.16 (using .../psa-firewall_11.5.30-debian6.0.build115130819.13_amd64.deb) ...
Unpacking replacement psa-firewall ...
Now, when you stop the firewall, you cannot start it again, cause deleting the active.flag disables the firewall:
Code:
# ll /opt/psa/var/modules/firewall/active.flag
-rw-r--r-- 1 root root 0 2013-11-26 09:22 /opt/psa/var/modules/firewall/active.flag
# /etc/init.d/psa-firewall stop
psa-firewall: firewall successfully disabled
# ll /opt/psa/var/modules/firewall/active.flag
ls: cannot access /opt/psa/var/modules/firewall/active.flag: No such file or directory
# /etc/init.d/psa-firewall start
psa-firewall: service is disabled
You then have to manually "touch" the active.flag to be able to start the firewall again. A workaround is to remove the line:
Code:
sed -i 's:rm -f /opt/psa/var/modules/firewall/active.flag::' /opt/psa/var/modules/firewall/firewall-emergency.sh'
I really hope that Parallels fixes this asap, as normally you won't notice that the firewall is not active when every works fine (nothing is blocked) and Plesk still shows all the rules.
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May 26, 2015
I currently have the Web Application Firewall (ModSecurity) installed but would like a visual interface to block IP's, subnets etc.. Can I install the Plesk firewall as well without any conflict with the Web Application Firewall?
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Sep 14, 2014
I have a brand new and fresh installed server with:
Parallels Plesk v12.0.18
openSUSE 13.1
My Problem is, every day i have to click on activate in the settings of the firewall. Otherwise i have no Mail. The rest (Hosting, etc.) works fine.
No changes in the firewall settings where made, just a migration from my old server.
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May 15, 2014
Plesk Firewall has no effect on IPv6?
I am writing today regarding the Plesk Firewall. It seemed to be pretty handy for quickly blocking troublesome users from *replace-with-whatever-IP-block-is-giving-you-trouble*. Yet I am unable to block IPv6 addresses, and the fire wall seems to let some blocked IPv4s right in. I did not see any distinction as to v4 or v6 in the Firewall dialog for adding custom rules, so...
The question is...
(1) Is the Plesk Firewall *supposed* to apply rules to IPv6 by default?
If yes...
(2) Is there a setting or a switch that has to be configured for this to work?
If yes...
(3) Where are said configuration options located?
Okay, when I run /sbin/ip6tables -L (CentOS) I get output that resembles the iptables (no 6) output, only... what, converted to IP6? Not sure. Example output:
DROP tcp ::ffff:31.0.0.0/104 ::/0 tcp dpts:1:10000
In that particular instance I added a drop for the 31.0.0.0/8 block (using the Plesk Firewall interface), in order to create the script that's loaded into iptables (and ip6tables as well, apparently) when one elects to "Apply Configuration". It worked great, executed perfectly, and the iptables output list output looked to be (and remember, I have grossly insufficient background knowledge in this area) accurate.
Yet at the time of this writing I can see via live traffic monitor that an address in the 31.0.0.0/8 block (IPv4) is pounding away at a website. This is curious, as the live traffic monitor indicates an IPv4 address. So... can an IPv4 address be detected and recorded from a host that is only able to connect via IPv6? While an interesting question, I was more concerned with just blocking the IPv6 address and get more academic with it later.
But this raises another question; why would Plesk populate ip6tables and not provide an interface to actually submit IPv6 addresses.
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Aug 23, 2014
When I modify rules using the firewall panel it is not generating rules correctly when selecting allow from selected sources deny from others.
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Nov 9, 2014
Applying Plesk firewall changes? I make my change, apply and get to:
Status: Applying in progress. If your browser shows connection error messages, or if this screen does not disappear in more than 30 seconds, go to previous page.
And there things stay. Going back to look at the firewall I can see the change haven't been applied, and going to apply just results in the same. No error, just no anything. It also took numerous attempts to get firewall modification to be swtich on although finally at about the eighth attempt changes were enabled. Only now I can't apply them ...
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Jun 26, 2014
After upgrading to Plesk 12 the FTP connection has become very slow. Mode Security, Fail2Ban and Plesk Firewall have been enabled, the security is set to force sFTP and maximum security and in /etc/proftpd.d/ a conf file has been added to set the passive ports that have been opened in the Plesk Firewall (60000 to 62000)
Turning off the Mod Security does not solve the slow connection.
What can we do to detect the cause of the problem?
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Oct 3, 2014
Plesk 12.x
CentOS 6.5
Any method for copying the Firewall (extension) rules from one server to another.
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Oct 24, 2014
I have enabled modsecurity system and in 1 day the modsec_audit.log file has grown to more than 700Mb. Is there any way to reduce the number of messages that this module logs?
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Aug 17, 2014
I am using the plesk firewall and trying to set up SSH rule which only allows from my IP but deny from everywhere else. In previous versions this worked fine by adding an ip selecting Allow from selected sources, deny from others and the icon in the rules would be orange with the lines
allow incoming from xxx.xxx.xxx.xx
Deny incoming from all others
However this no longer works as the deny from all others is not appearing and is not being generated in the iptables by plesk.
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Jul 2, 2015
I just have installed plesk panel and when i get to the "Firewall" tool, then clicked on "Enable Firewall Rules Management", proftpd has stopped working properly.URLs....I have preinstalled the server 2 times, and every time i try to edit the firewall rules, proftpd got broken.
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Jun 18, 2014
Since the update I have a problem with my Firewall. I need to set "Allow all incoming connections" under "Server => Firewall" in order to connect over FTP with TLS (explicit). This was working before the update without allowing all incoming connections. How to fix this in the Plesk panel?
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Aug 25, 2014
How do we redirect port in Plesk firewall module without touching iptables? I saw forwarding but there was no destination port.
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Jul 25, 2014
I would like to know if is possible to export Plesk firewall rules from Plesk 9.5.4 to Plesk 11.5.30 with panel.
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Mar 1, 2015
I have some issues with the plesk firewall:
1. Emails are not delivered:
From some reasons, plesk is blocking incoming 25 port (in plesk shows opened, but it's not)My emails are delivered trough port 25, after doing some tests ( i've sent some emails to an email account hosted in the server) there was no email in the roundcube inbox! All emails were blocked...
a) Firewall was blocking the port 25 on server restart.
b) I have succesfully unblocked it from plesk manager -> tools -> edit/change -> even if i didn't change anything, i saved the "changes" and in my roundcube inbox i recived all the test emails.
c) In /var/log/maillog there is no error.
2. Passive FTP gets blocked in the same way, to successfully connect FireFTP on passive mode i need to repeat 1.b steps even if i've created a special rule to prevent the blocking, opening 49152-65534 ports and set PassivePorts 49152 65534 in /etc/proftpd.conf
The issue appears randomly, because in the last 5 days i didn´t restart the server, the last time i checked it worked. Today, without touching anything, firewall blocked my passive FTP and I had probmels reciving emails from gmail, yahoo etc...
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Jul 21, 2014
I am having trouble connecting to my ssh server. It responds with a lengthy error message about no network etc. but it is the last message that concerns me:
Sometimes, such troubles can be caused by a misconfigured firewall.
How can I check the firewall if I cannot connect to ssh? I am running plesk 11.5 control panel and CentOS 6. Is this something I can do from plesk?
I can see that the firewall in plesk is set to allow all for ssh, but I cannot see way to disable the firewall to test ssh connection. Can this be done from plesk?
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Jul 8, 2014
I am unable to disable or modify the firewall by using the plesk firewall extention. Plesk throw the two errors below:
Code:
Error: Could not disable firewall:
util_exec(.., 'proc_open') failed: file does not exist or is not executable: /opt/psa/admin/bin/modules/firewall/register_service
Code:
Error: Could not activate firewall configuration:
util_exec(.., 'proc_open') failed: file does not exist or is not executable: /opt/psa/admin/bin/modules/firewall/safeact
I checked the symlinks, they point to the same location: /opt/psa/admin/bin/modules/firewall/mod_wrapper
-r-s--x--- 1 root root 18896 Jun 6 10:37 mod_wrapper
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Mar 28, 2015
In plesk I have set the ssh rule to allow from source, deny others and added my IP. However, if I connect my PC to my work VPN, I can still login via ssh, even when I am on a different IP as the allowed IP
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Feb 13, 2015
I temporarily enabled and activated Plesk firewall module (which I wish I didn't the first time) and for some reason it seems to have overwritten the default iptables configuration that was set, leaving my ftp unable to be logged into. I tried to disable the firewall module and reboot the server. It didn't work.
I also noticed that it somehow seem to have changed my hostname to my previous server hostname as well
Is there any way to completely revert back to original iptables settings before enabling the Firewall module?
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Nov 9, 2012
I've discovered an annoying problem in Plesk 11.
When you register a .fr domain name, you need to have a Success ZoneCheck at [URL] ....
The test fail because the server didn't answer to ICMP IPv6 requests.
Error: The server does not listen to or does not answer in UDP on the port 53 (on the IpV6)
My question is: How to open port 53 on IPv6 for ICMP requests ?
This is functional with IPv4 But not IPv6.
There are some rules in the Plesk Firewall, but it seems not working at all.
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Apr 10, 2014
I enabled plesk firewall to my ip now I cant seem retrieve directory listing. I've done the same with ssh that works fine.
Response:230 User logged in
Command:OPTS UTF8 ON
Response:200 UTF8 set to on
Status:Connected
Status:Retrieving directory listing...
Command:PWD
Response:257 "/" is the current directory
Command:TYPE I
Response:200 Type set to I
Command:PASV
Response:227 Entering Passive Mode
Command:MLSD
Error:Connection timed out
Error:Failed to retrieve directory listing
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Aug 19, 2014
I am running Plesk 12 . Centos 6.5
I have Plesk Firewall Installed.
After the Plesk Firewall was enabled the FTP Stopped working in passive Mode.
I searched the net and found the following :
Code:
/etc/sysconfig/iptables-config and change the line with IPTABLES_MODULES to: IPTABLES_MODULES="ip_conntrack_ftp"
It started working.
I changed the default FTP port from proftpd.conf
Code:
port 2392
and /etc/services
Code:
ftp 2392/tcp
ftp 2392/udp fsp fspd
I allowed the new port in Plesk Firewall in Incoming connection and disabled port 21
Now I am not able to connect to the ftp, I get the following error. Have I missed anything ?
Code:
Response:257 "/" is the current directory
Command:TYPE I
Response:200 Type set to I
Command:PASV
Response:227 Entering Passive Mode (85,25,51,34,216,46).
Command:MLSD
Error:Connection timed out
Error:Failed to retrieve directory listing
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Aug 24, 2014
I have the web pro edition panel 12 on centos 6.5 64bit, and i have made some custom firewall rules in order to be able to run a teamspeak server. The problem is that the firewall randomly blocks the teamspeak port and keeps it blocked unless i restart the firewall.
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Jun 25, 2015
When I deny all other traffic for the "System policy for incoming traffic" to secure the server by only allowing the explicit ports I've requested to open, my server stops operating correctly.
It appears when I set the "System policy for incoming traffic" to deny, it appears to be disrupting various functions such as web traffic over ports 80/443, FTP, SSH, they either work extremely slow or don't work at all.
I brought this up with my Plesk license provider and they stated that the Plesk firewall doesn't add any tracking for ephemeral ports, therefore if you set the policy to drop for incoming/outgoing, it's not going to allow proper TCP communication since the return socket can't be opened. Also that the firewall is an explicit deny system rather than explicit allow based system.
Am I doing something wrong? All I want to do is to block all ports other than the ones I've set to allow. Is this how it is supposed to work?
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