Administrator Log

This update was developed for Windows XP and Windows 2000, to block the use of static source ports for DNS requests, because the hacker were able to guess and falsify the transaction-ID of DNS queries with a very high probability.
Although this problem was known since a long time and several software vendors worked together with the aim to find a solution, Checkpoint, the maker of ZoneAlarm, was obviously surprised. After the installation of the above update, ZoneAlarm blocks all connections, so there is no name resolution possible and the Internet activity is paralysed. I had this problem yesterday, when I started my notebook. I knew already that such problem is exists, but I thought that I will not have this problem on my laptop. But because Windows Auto Update on my computer is on, the update was downloaded and installed on my computer automatically. As a result, I could not access the Internet. The problem was solved by getting firewall on “Medium”, then I could update ZoneAlarm to the latest version. Despite the rapid solution, I am very disappointed that I had experiencing this problem. It could occur not at home, but at work, while presentation of some product to my customers. It would be very unprofessional act and I’m sure that the customers would see the source of the problem not at Checkpoint, but at me.