I'd be happy to help you update your NxFilter 4.6.7.7 to the latest version!

Since you have two NxFilters in a cluster, it's essential to ensure that both instances are updated simultaneously to maintain consistency and avoid any potential issues.

To update NxFilter, I recommend using the command-line interface (CLI) as it provides more flexibility and control over the process. Here are the steps:

1. Connect to your NxFilter instance using SSH or a secure shell client. You can use Putty for Windows or any other compatible tool.

2. Once connected, run the following command to list all available updates:

```

nxfilter update --list

```

This will display a list of available updates, including the latest version.

3. To apply the update, run the following command:

```

nxfilter update --apply

```

Replace `` with the actual version number you want to upgrade to.

For example, if the latest version is 5.2.1, you would use:

```

nxfilter update --apply 5.2.1

```

4. Repeat steps 1-3 for the second NxFilter instance in your cluster.

5. After updating both instances, restart each node to ensure that the changes take effect.

Some additional tips:

* Make sure you have enough disk space available on your system before updating.

* Back up your configuration files and data before updating, as a precautionary measure.

* If you encounter any issues during the update process, you can roll back to a previous version by using the `nxfilter update --rollback` command.

Please note that I'm assuming you have administrative privileges on your system and are familiar with SSH or similar secure shell clients. If you're new to CLI commands or need further assistance, feel free to ask!

NxFilter 4.6.7.7 free instal