[WayBack] I have created a Google Sheet with forwarding addresses. Please feel free to add yours- only the info you are comfortable with. Please DO NOT add full e… – Di Cleverly – Google+
[Archive.is] Forwarding Addresses – Google Sheets
–jeroen
National Cyber Security Centre publish Ubuntu 18.04 LTS Security Guide | Ubuntu blog
Posted by jpluimers on 2019/01/18
For my link archive: [WayBack] National Cyber Security Centre publish Ubuntu 18.04 LTS Security Guide | Ubuntu blog
Via: [WayBack] A new best practice guide for hardening #Ubuntu Desktop 18.04 from the National Cyber Security Centre (part of UK gov): https://blog.ubuntu.com/2018/07… – Will Cooke – Google+
–jeroen
Share this:
Posted in *nix, Linux, Power User, Ubuntu | Leave a Comment »
TigerVNC on Mac OS X with homebrew to check why a Screen Sharing.app connection fails.
Posted by jpluimers on 2019/01/18
Two installation options for TigerVNC:
The [WayBack] TigerVNC viewer gives a bit more details on failing VNC connections than the stock OSX Screen Sharing.app does: after performing the logon, the connection would just stall, but TigerVNC would should “write broken pipe (32)” after the logon. Most of the linked search results indicated the VNC server was having a state problem.
So I restarted the VNC server, after which connections could be made again in both tools.
I actually prefer the stock Screen Sharing.app as:
- it has been there forever [WayBack] Access the VNC Client in Mac OS X & Create a Screen Sharing App Shortcut
- it integrates well with OS X
- it is accessible from the command line:
- try
open vnc://192.168.178.55:5900if your VNC server is listening on192.168.178.55:5900 - or have the connection go over SSH (so you’re sure it’s secure), via [WayBack]Kristian Köhntopp – Google+:
TIL that Apple’s “Screen Sharing” app is command-line accessible.
ssh username@hostname -L5910:localhost:5900open
vnc://username:password@localhost:5910
- try
–jeroen
Share this:
Posted in Apple, Mac OS X / OS X / MacOS, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, macOS 10.12 Sierra, OS X 10.10 Yosemite, OS X 10.11 El Capitan, OS X 10.8 Mountain Lion, OS X 10.9 Mavericks, Power User, VNC/Virtual_Network_Computing | 2 Comments »
Resetting the OnePlus data limit behaviour
Posted by jpluimers on 2019/01/18
Somehow I managed to get a OnePlus phone to have the read data limit line stuck at ~5 gigabyte whereas the warning was at ~15 gigabyte.
This caused all sorts of havoc when I passed the 5 gigabyte mark: cellular data would turn off, I would get all sorts of warnings and – worst of all – I could not reset the red line.
The solution was at [WayBack] Unable to remove “Cellular data limit exceeded” notification even after changing the data limit on OnePlus 2’s OOS 3.5.5:
There are numerous discussions offering a solution to this:
- Goto
Settings>Backup & reset>Network settings reset.- Now select the affected SIM card
- Now click
Reset Settings.
–jeroen
Share this:
Posted in Android Devices, OnePlus Two, Power User | Leave a Comment »
GitHub – pyscripter/python4delphi: Free components that wrap up Python into Delphi and Lazarus (FPC)
Posted by jpluimers on 2019/01/17
Interesting: [WayBack] GitHub – pyscripter/python4delphi: Free components that wrap up Python into Delphi and Lazarus (FPC)
Via [WayBack] 【Develope a rabbitmq application with python4delphi】 You can download the vcl from https://github.com/pyscripter/python4delphi The VCL can support pyth… – dorje sona – Google+
–jeroen
Share this:
Posted in Delphi, Development, Software Development | Leave a Comment »
Some interesting bits on interface delegation including a class helper trick – via Stefan Glienke – Google+
Posted by jpluimers on 2019/01/17
Every time he finds a new compiler use, I’m all like “wow!”. This time [WayBack] Stefan Glienke – Google+: One of these rare moments when the compiler positively impresses me found a new way to make single responsibility principle easier to attain by using a class helper to resolve interface delegation.
In the comments are a few nice tidbits on what the compiler emits in order to implement interface delegation and reference counting.
–jeroen
Share this:
Posted in Delphi, Development, Software Development | Leave a Comment »
Raspberry Pi cannot be woken up by WOL, but it can send, and there is Whack-on-LAN
Posted by jpluimers on 2019/01/17
Cool stuff if you want to make your own WOL devices out of spare parts.
From old to new:
- WayBack Whack-on-LAN PDF http://www.cs.utah.edu/flux/papers/whol-ftn-draft1.pdf
- [WayBack] Reset-on-LAN: An ethernet-aware remote reboot device from junkbox parts. – i3Detroit
- [WayBack] Wake-On-Lan Powerstrip | Evan’s Techie-Blog
They can be woken up by anything sending magic WOL packets, including Raspberry Pi (which cannot be woken up by them, though you could use a Whack-on-LAN for that).
Basically the Raspberry Pi cannot be woken up with WOL because of a few reasons:
- The ethernet chip is connected over USB so it cannot pass the WOL result further on.
- If it could, there still is no BIOS to process the WOL result.
- When it is halted but has power, the CPU isn’t active. The GPU is, but cannot process the WOL.
It can be a WOL server though: [WayBack] Raspberry Pi As Wake on LAN Server: 5 Steps (with Pictures)
–jeroen
Share this:
Posted in Development, Ethernet, Hardware Development, Network-and-equipment, Power User, Raspberry Pi, Wake-on-LAN (WoL) | Leave a Comment »
IDE Fix pack for Rio development snapshot – via Delphi-PRAXiS [en]
Posted by jpluimers on 2019/01/17
If you dare using Delphi 10.3 Rio instead of waiting for Update 1 to stabalise (and hopefully speed up things), you might want to try the development snapshot of [WayBack] IDE Fix pack for Rio – Page 2 – Delphi Third-Party – Delphi-PRAXiS [en] that got released last week (thanks Andy!):
A new development snapshot of IDE Fix Pack for 10.3 Rio is available.
The Win64 (DCC64) and Android (DCCAARM) compiler patches should now work as excepted.
Changes:
- Added: Support for Delphi 10.3 Rio
- Added: Fix for TStringList.IndexOfName bug (RSP-21633)
- Added: Fix for access violoation in the Welcomepage JScript9.dll binding
- Added: TCustomListBox.ResetContent is skipped if the handle isn’t created yet
- Added: DFM Streaming optimizations
- Added: FillChar uses Enhanced REP MOVSB/STOSB cpu feature if available for large sizes.
- Added: Enabled CPU LOCK string assignment optimization for local variables
- Added: -Oe (experimental optimizations) and -x-cgo compiler option extension (Remove of some unneccessary push/pop operations)
- Added: Expression Evaluator allows array access to pointers even if the type wasn’t declared with {$POINTERMATH ON}
- Added: New compiler option extensions: -x–compileonly, -x–reslist, -x–depfile, -x–unitstats
- Added: More performance optimization for the DCC64 compiler
- Added: TStringBuilder.SetLength optimization [RSP-19178]
- Added: TStrings.GetDelimitedText optimization
- Fixed: Packages with duplicate units may not have caused a fatal compiler error.
Related:
- [RSP-21633] TStringList.IndexOfName may not find a name that is in the list when Sorted = True – Embarcadero Technologies
- [RSP-19178] TStringBuilder.SetLength is unneccesarily slow – Embarcadero Technologies
–jeroen
Share this:
Posted in Delphi, Delphi 10.3 Rio (Carnival), Development, Software Development | 4 Comments »
Generating a million sequential numbers on the fly in a SQL Server query
Posted by jpluimers on 2019/01/16
A while back I wrote on Generating a million sequential numbers on the fly in a Firebird query – some solutions and speed measurements.
SQL Server has different features and performance characteristics so here are some links on doing similar things in SQL Server:
- [WayBack] sql server – SQL, Auxiliary table of numbers – Stack Overflow
- [WayBack] sql server – What is the best way to create and populate a numbers table? – Stack Overflow
As always: if performance is important, measure before starting to optimise!
Via: [WayBack] sql – All hour of day – Stack Overflow
–jeroen
Share this:
Posted in Database Development, Development, Firebird, SQL, SQL Server | Leave a Comment »
Tools for TCP tunnels over HTTP/HTTPS
Posted by jpluimers on 2019/01/16
With the advent of WebSockets, it looks like TCP tunnels over HTTP/HTTPS are gaining more ground and I need to put some research time in them.
Some old to new links:
- Source: elia/corkscrew: Corkscrew mirror repo. Corkscrew is a tool for tunneling SSH through HTTP proxies. (which requires CONNECT)
- q3k/crowbar: Tunnel TCP over a plain HTTP session (does not require CONNECT: works with GET and POST requests)
- jpillora/chisel: A fast TCP tunnel over HTTP
CONNECT requests are not supported by many HTTP proxies, especially in larger organisations, so chisel and crowbar have a much bigger chance there.
However, that is a VPN solution which is much broader than just a single TCP tunnel. You can so similar things with OpenVPN, but over HTTP/HTTPS, also requires CONNECT:
- [WayBack] tls – VPN over HTTPs for a web service only – Information Security Stack Exchange
- [WayBack] Andreas Happe – How to hide OpenVPN behind HTTPS/SSL
- [WayBack] How to hide OpenVPN traffic – an introduction – BestVPN.com
- [WayBack] firewall – Can you run a VPN connection over HTTP? – Ask Ubuntu
SoftEtherVPN seems to be more versatile though. I blogged about that before, but back then didn’t have needs for it yet. VPN over HTTPS: Ultimate Powerful VPN Connectivity – SoftEther VPN Project.
–jeroen
via: [WayBack] VPN through only http – Server Fault answer by [WayBack] neutrinus
Share this:
Posted in Communications Development, Development, HTTP, https, Internet protocol suite, Network-and-equipment, OpenVPN, Power User, TCP, VPN, WebSockets, Windows-Http-Proxy | Leave a Comment »
The Wiert Corner - irregular stream of stuff 