Sophos UTM: Very slow connection via WAF / Sensor for PRTG

A reader recently told me about a problem with the Sophos UTM web application firewall. Due to the Corona crisis, many of the employees have moved to the home office and have since been using more connections to the Exchange server, which are protected by the WAF of the Sophos UTM. So after there was a higher load on the UTM during the day ... Read more

Sophos UTM: Export WAF certificate using PowerShell (Exchange version)

In this article, I already described how the Sophos UTM certificate can be exported via REST API. A few people have now reported that an automatic export and import for Exchange Server is interesting. I have therefore extended the script and successfully tested the export and import with Exchange Server 2016. ... Read more

Sophos XG: Exchange 2016 and SFOS 16.05 Webserver Protection (Part 3 Optional)

In article 2, I had already written my opinion on RPCoverHTTP (Outlook Anywhere) in conjunction with Sophos XG and two public DNS names. Here again briefly to repeat: The background is that most of the protection mechanisms of the web server protection for Outlook Anywhere must be switched off. This then also applies to the remaining web services such as OWA ... Read more

Sophos UTM 9.4 WAF and Exchange 2016

For Exchange 2010 and Exchange 2013, I had already published articles for Sophos UTM Webserver Protection (WAF) here. However, since Exchange 2016 has now been released and the Sophos UTM is also available in a more up-to-date version, there is another update here. Environment (UTM and Exchange) Exchange Server 2016 CU1 ... Read more