F5 APM: 2-factor authentication not possible with VMware View 6

This problem doesn't really belong here, but maybe it will help someone anyway. The problem is as follows. If the F5 iApp is used for VMware View and extended accordingly for 2-factor authentication, a "User name or password incorrect" message appears between the two queries. This is a bug that is caused by the F5 ... Read more

Sender Policy Framework (SPF): How it works and when you shouldn't use it

How SPF works SPF (Sender Policy Framework) is a simple method for identifying forged senders and blocking them as SPAM. The way it works is simple: The domain owner (e.g. me with the domain frankysweb.de) publishes a TXT record (SPF record) in the DNS which contains the mail servers from which I send mails. For example, if my mail server ... Read more

VMware View: The registration of the Group Policy Client service failed

The problem does not really fit here, but maybe it will help someone. The following problem occurs with users who have not logged on to VMware View Horizon Desktops for a long time: The logon of the Group Policy Client service has failed. Access denied The error occurs because the NTUser.dat file within the user profile is corrupt. ... Read more

Note: Blacklist AHBL ceases operation

The AHBL blacklist (rhsbl.ahbl.org, dnsbl.ahbl.org, and ircbl.ahbl.org) ceased operations on 01.01.2015. All requests to the blacklists are answered positively, which causes SPAM filters to classify the mail as SPAM. So if you have still entered the blacklist, you should correct the configuration as soon as possible. Click here for information from AHBL: http://www.ahbl.org/content/last-notice-wildcarding-services-jan-1st How the blacklists for ... Read more

Sophos UTM 9.210 Mailprotection bug: 403 4.7.0 TLS handshake failed

Currently there seems to be a bug in the Sophos UTM that prevents a TLS connection from being established. The log file of the sender's MTA then contains entries with the message "TLS handshake failed". Here is an example from Clearswift: There is also a message about this in the Sophos forum: https://www.astaro.org/local-language-forums/german-forum/54875-bug-9-210-20-smtp-send-receive.html Apparently ... Read more

Videos from the Technical Summit 2014 available on Channel9

The videos from the Microsoft Technical Summit 2014 in Berlin are available on Channel 9. A total of 46 videos on various topics are available there: .NET Compiler Framework "Roslyn" ASP.Net vNext closing keynote Alive and kicking: .NET vNext at a glance Authentication and single sign-on for mobile, web and desktop applications Automation 2.0 - data center automation in the public (Azure ... Read more

Microsoft Technical Summit 2014: A brief summary of the first day

The first day of the Microsoft Technical Summit 2014 in Berlin is drawing to a close. Time for a brief summary. The keynote was quite interesting to listen to. Satya Nadella gave it in person: Now the key note is not the most interesting thing about the event for me. The subsequent presentation by Jeff Woolsey was ... Read more