Solving The Problem Of Missing Iptables File In Msconfig

Posted on January 13, 2022January 23, 2022 by Owen Coppleson

Over the past few days, some users have informed us that they cannot find the iptables file in msconfig.

Table of Contents

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Iptables configuration file Standard configuration files for RHEL – CentOS / Fedora Linux: / etc / sysconfig / iptables are system scripts that activate the firewall by reading this archive.

Environment

Red Hat Enterprise Linux (RHEL) 6.6.
Red Hat Enterprise Linux 6 (rhel). 7.
Red Hat Linux Enterprise (RHEL) 6.8.
Red Hat Linux Company (RHEL) 6.9.
iptables.

Problem

iptables.Is service is not generated in a minimal RHEL 6.6 installation, but also higher.
The file / etc / sysconfig / iptables does not exist by default.
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The firewall is down.

Where is the iptables config file?

In most cases, the configuration will be saved in the / etc / sysconfig / system-config-firewall file when the Apply button is clicked, in which case the / etc / sysconfig / iptables file will be overwritten.

  # iptables solution statusiptables: no firewall is running.

Resolution

This is a commonly known issue with minimal installations of RHEL 6.6 and above.
This issue should be resolved in the % packages kickstart section.

The

authconfig and system-config-firewall-base packages worked by default prior to Red Hat Enterprise Linux 6.5. But the behavior has been completely changed by reference Red Hat Enterprise 6 linux.6.
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To work around this issue, take the following precautions:

Make sure iptables.service is enabled. Otherwise, activate the service:

  # chkconfig iptables# chkconfig iptables --listiptables 0: disabled 1: disabled 2: disabled 3: enabled 4: enabled 5: enabled 6: disabled

Load the core iptables modules using the command iptables -L :

  # iptables -LLOGIN string (ACCEPT policy)Target-prot-opt-source-targetFORWARD String (ACCEPT Policy)Target-prot-opt-source-targetEXIT string (ACCEPT directive)Prot target go to the original target

Make sure that web design iptables loaded:

How do you check iptables are enabled or not?

However, you can easily check the status related to iptables with the systemctl location iptables command. service or maybe just the iptables operations status command – depending on your Linux distribution. You can also query iptables which has the iptables -L command which multiplies the active rules.
```
  # lsmod | grep tableModule size usediptable_filter 2993 0ip_tables 17831 1 iptable_filter 
```

Create a iptables file in the / etc / sysconfig / directory with:

  # Save the iptables optioniptables: Save firewall rules in / etc / sysconfig / iptables: [OK]

How do I enable iptables?

Install the iptables-services field (if not already installed) by running the following command: $ yum install iptables-services.Enable running the service during sneaker by running the following commands: systemctl income enable iptables $ systemctl insure ip6tables.

Check if iptables.service is running:

Where is the iptables config file?

The configuration is saved in the / etc / sysconfig / system-config-firewall path, if you click Apply, the / etc / sysconfig / iptables file will literally be overwritten.
```
  # IPtables service statusLOGIN string (ACCEPT policy)Aim-Prot-Opt-Website-HotspotFORWARD String (ACCEPT Policy)Target Prot Opt Buy LocationEXIT string (ACCEPT directive)Target-Prot-Opt-Source 
```

Home

Reason

The file / etc / sysconfig / iptables is not created by default with a minimal upgrade from RHEL 6.6 and above. This will cause not all iptable.service to run. This issue should be resolved with the kickstart message % packages . The minimal package set is deliberately used a lot because it is used as an aspect of RHEL certification processes such as FIPS, among others.
This minimal set of packages may appear to be missing packages, but this is literally by design. Minimum nThe package collection cannot be changed at all, and we cannot develop additional metrics packages that will be included if the user chooses the minimum. The challenge somewhere during installation is to use Kickstart and thus install additional packages required using some % packages sections.

Diagnostic Steps

Run iptables.service

  # Launch iptables productsiptables: no config file. [A WARNING]

How do I enable iptables?

Install the iptables-services package (if it has never been installed before) by running the command: $ yum install iptables-services.Enable the service so that it can be started at any time during startup by running the following commands: rrr systemctl enable iptables $ systemctl insure ip6tables.

* Make sure the iptables module is loaded.

  # lsmod | grep iptable

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