With SSL-bumping enabled, with an unpatched version of Squid, the service can crash with this errormessage: !Comm::MonitorsRead assertion in HttpStateData::maybeReadVirginBody() This bug is fixed in Squid version 5, which was a sponsored effort by the developers of Squid. There is an effort of getting a bugfix into v4, which can be followed here. There also […]
Artikel in Kategorie "GNU/Linux"
Taking an Online Backup of a SAMBA-4 ActiveDirectory
7. Dezember 2019 in Administration, GNU/Linux.
Notes: The following procedure is available starting with SAMBA version 4.9. The procedure can be performed on a host that is unrelated to the domain, but one domain controller must be reachable, must be used as a nameserver at the time of the backup and have open ports for DNS (53/tcp and /udp) SSH (22/tcp), […]
Re-Enable TLS 1.0 for OpenSSL-based Clients on Debian Buster
8. März 2020 in GNU/Linux.
OpenSSL shipped with Debian 10 „Buster“ disables TLS protocol versions below 1.2. The web-browsers Chromium and Firefox ship with an embedded SSL implementation and are not affected (they will issue warnings about legacy websites), but it can cause problems with curl, Squid and other clients that are linked against the OpenSSL. To re-enable TLS version […]
AD-Precreation using ktutil, kinit and adcli
4. Dezember 2019 in Administration, GNU/Linux.
Using computer object precreation you can enable machines to join an Active Directory domain with knowledge of just one dedicated one-time-password. Combined with delegation you can offload management of computer objects to an otherwise unprivileged AD user.
Drawing a Yellow Rectangle on Android
30. September 2019 in Programmierung.
As an addendum to my previous article, there now also is an Android App „YellowRectangle“ that draws a yellow rectangle and terminates on the first touch event. It runs on Android version 4.0.3 (Ice Cream Sandwich MR1) and upward. It is written in Java and C++ and uses the Allegro game development library (http://liballeg.org/).
Drawing A Yellow Rectangle
25. März 2018 in Programmierung.
Premise On the weekend i wanted to perform the task of drawing a yellow rectangle programmatically onto the screen of a Personal Computer: The program would feature a viewport that occupies the entirety of the primary display of the PC. On the viewport, 640 pixels could be adressed in width, 480 in height. The viewport […]
Auf macOS HTTP(S) ohne Entwickler-Werkzeuge protokollieren
6. März 2018 in Administration, Programmierung.
Die Browser-Entwicklerwerkzeuge sind nett, aber der Netzwerktraffic-Reiter hat (insbesondere bei FF) ein Problem, er reisst die Performance so weit runter, dass einem das Gesicht einschläft. Auf macOS verwende ich „mitmproxy“, um HTTP und HTTPS zwischen Browser und Server zu protokollieren. Das Verfahren erfordert die Installation von „homebrew“ (ein Paket-Manager für macOS) und damit dann „mitmproxy“ […]
xdraw 1.1
5. Mai 2017 in Multimedia, Programmierung.
I was very pleased to notice that my small Xlib-utility xdraw has made it across the years unscathed. It compiled after 11 years of complete lack of code or build system maintenance. Hail to the stability of the X Library! However, i found the visual quality of the drawing results a bit lacking – the […]