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iptables: Unknown error 4294967295

Posted by Jason Web Hosting Friday 14 November 2008 8:21 pm

You may receive the following error message while restarting iptabes in your VPS:

error message: from firewall software ~ iptables: Unknown error 4294967295

this usually occurs when the required iptables modules are not loaded in the host server kernel. Login to your host server and load the following iptable modules:

modprobe ipt_MASQUERADE
modprobe ipt_helper
modprobe ipt_REDIRECT
modprobe ipt_state
modprobe ipt_TCPMSS
modprobe ipt_LOG
modprobe ipt_TOS
modprobe tun
modprobe iptable_nat
modprobe ipt_length
modprobe ipt_tcpmss
modprobe iptable_mangle
modprobe ipt_limit
modprobe ipt_tos
modprobe iptable_filter
modprobe ipt_helper
modprobe ipt_tos
modprobe ipt_ttl
modprobe ipt_REJECT

You can safely start iptables on your VPS now.

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iptables rule limit (numiptent) is too low

Posted by Jason Web Hosting Friday 14 November 2008 7:25 pm

You may come across with a “numiptent” error message while restarting iptables on a VPS. The error looks somewhat like:

The VPS iptables rule limit (numiptent) is too low (491/500) - stopping firewall to prevent iptables blocking all connections, at line xxx

In this case, you need to increase the “NUMIPTENT” value in the VPS configuration file which is located at /etc/sysconfig/vz-scripts/ directory. There is a restriction on the total number of IP packet filtering entries in the system and when the allotted limit is lower than the number of iptable rules set on your VPS, you will receive the above error message. You need to increase the “numiptent” value and restart the VPS.

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Enter into Container VEID failed

Posted by Jason Web Hosting Saturday 18 October 2008 8:26 am

The VPS’es that have problems with connecting and entering, it tends to be a small problem either with tty/pty devices OR udev. You will be greeted with an error message while accessing a VPS from the host server:

enter failed
enter into Container VEID failed

either the pty/tty devices are missing OR having incorrect permissions. You will have to create them on the container using the MAKEDEV program which is use to create devices in /dev. The following commands will have to be executed from the host server to create those devices and restart the container:

vzctl exec VEID /sbin/MAKEDEV tty
vzctl exec VEID /sbin/MAKEDEV pty
vzctl restart VEID

If creating the devices doesn’t fix the issue, update the startup files and restart the container:

vzctl exec VEID update-rc.d -f udev remove
vzctl restart VEID

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