Category Archives: Installation

Installation of WFilter NG Firewall

Difference between WFilter Enterprise and WFilter NG firewall.

Some users get confused about “WFilter Enterprise” and “WFilter NG firewall”, so in this topic I would like to discuss the difference about these two products.

Though they are all named as “WFilter xxx”,  ”WFilter Enterprise” is a pass-by web filtering software for windows pc, while “WFilter NG firewall” is a linux-based firewall system which shall be installed in a dedicated x86 pc.

WFilter NG Firewall

  • 1. A total solution for bandwidth optimize, access control, VPN.(UTM and NG firewall)
  • 2. Deployment: gateway, bridge.
  • 3. Installation: x86 PC or virtual machine
  • 4. License: 30-day free trial

WFilter Enterprise

  • 1. Pass-by monitoring windows software solution.
  • 2. Recommend deployment: pass-by
  • 3. Installation: shall be installed in a windows PC.
  • 4. License: 30-day free trial

How to choose?

The first, you need to confirm your requirement. If you only need “internet access control”, both “WFilter Enterprise” and “WFilter NG firewall” can satisfy you. If you need “bandwidth shaper” or VPN features, you need to choose “WFilter NG Firewall”.

The second, you need to choose the prefered deployment. In case you don’t want to change current network topology or add a new network device, you need to choose “WFilter Enterprise” which can be deployed with your current topology unchanged. If you agree to replace your current router/firewall, or add a transparent network bridge, please choose “WFilter NG firewall”.

The third, please be aware that WFilter Enterprise is a windows software program, which can be installed instantly. While WFilter NG firewall is an operation system, you need a dedicated PC and burn a CD or usb stick to install it.

How to monitor employee emails usage in business networks?

An email client receives emails via POP/IMAP protocols, sends emails via SMTP protocol. In today, SSL encryption is widely used for email clients. There are two kinds of SSL encryption: “SSL Connection” and “STARTTLS”.

WFilter Enterprise is an internet content monitoring and filtering software program, which can monitor a whole network from one pc, without the need to install any client agent.

 

With WFilter, you can monitor employee emails usage of  plain SMTP/POP/IMAP.

1. Click “Emails” number in “Online Users”.

howto_viewMail_today01

2. You will see a list of sent/received emails.

howto_viewMail_today02

Click the “Subject” link will be able to check the email content.

3.  Query email history in “Query History Logs”.

howto_viewMail_history01

Please note that “WFilter Enterprise” can only monitor plain pop3/smtp/imap emails. To monitor SSL emails, you need to check SSL Email Inspection feature of “WFilter NG Firewall“.

 

How to upgrade WFilter NG Firewall?

“Auto update” feature of WFilter NG firewall can upgrade “protocol pattern database” and “url category database” automatically. By default,  WFilter NG firewall has “auto update” enabled.

However, “auto update” can not perform fireware upgrade. When a new version comes out, you need to manually perform the system fireware upgrade.

This guide demonstrates the steps to perform a fireware upgrade of WFilter NG firewall.

1. Make a backup of current settings.

Please note that upgrade may fail on power supply issue, disk issue… So at first, please export current settings to a backup file in “Config”->”Backup”. In case when you’re unlucky, you don’t need to re-configure the whole system.

2. Click “Check Update now”.

checkupdate2

3. Found a new version, then click “Upgrade”.

checkupdate3

4. Downloading the new firmware.
checkupdate4

5. Confirm the upgrade.
checkupdate5

 

At lease one reboot is required during the upgrading.  All settings and data will persist after the upgrading.