Posted by jpluimers on 2020/05/18
On my research list: read more about hexagonal architecture – Google Search.
Like:
Related: [WayBack] Learned today: In the praxis most domains are way more than sufficiently complex… – Jeroen Wiert Pluimers – Google+
I think I like a round diagrams better than hexagonal ones, because it gives more clarity to me.
Also on my list:
–jeroen
Posted in Development, Software Development, Systems Architecture | Leave a Comment »
Posted by jpluimers on 2020/05/18
This is still so cool: [WayBack] Free Linux cloud shell for Gmail users … – Adrian Marius Popa – Google+:
Free Linux cloud shell for Gmail users
https://news.ycombinator.com/item?id=16247577
comments are more interesting
“If you want a free Linux box with a Public IP and SSH, I’d recommend spinning up an f1-micro VM. It’s part of the permanent free tier”
Even cooler is that you can use it both from a web browser and from your own console, more on that below.
The above links:
Posted in Google, GoogleCloudShell, Power User | Leave a Comment »
Posted by jpluimers on 2020/05/18
This looks like an ssh equivalent to testssl.sh: [WayBack] GitHub – arthepsy/ssh-audit: SSH server auditing (banner, key exchange, encryption, mac, compression, compatibility, security, etc).
It is on my list of things to try, so I’ve put a watch on the repository changes.
–jeroen
Posted in Communications Development, Development, Encryption, Internet protocol suite, Power User, Security, SSH, TCP | Leave a Comment »
Posted by jpluimers on 2020/05/15
With the demise of G+, I am glad that most of the [WayBack] mos6502 posts were archived at [WayBack] 6502.org • Search: mos6502 G+ posts
Via [WayBack] This week, OUP/M, a 6502 CP/M-ish operating system from 1983, in the process of recovery from Jian-Xiong Shao’s Masters Thesis into Github. And a reques… – mos6502 – Google+
6502 posts – new projects and interesting old projects from the archives
–jeroen
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Posted by jpluimers on 2020/05/15
On my research list: [WayBack] Show openSUSE:Factory / bootchart – openSUSE Build Service.
I bumped here when researching on how to list services: [WayBack] init.d – Command to list services that start on startup? – Ask Ubuntu
It seems few people use it on opensuse, but it is interesting for analysing the boot process nonetheless.
I already found out this is in fact bootchart2: [WayBack] GitHub – xrmx/bootchart: merge of bootchart-collector and pybootchartgui
Some links that should help me further are these:
From the last link, this translation:
A. systemd-analyze
You will see the total computer startup time after:
systemd-analyze
A complete list of how much each individual service has taken is when you complete:
systemd-analyze blame
You will see the most problematic processes after you complete:
systemd-analyze critical-chain
You can create a picture:
systemd-analyze plot> /tmp/systemd-analyze.svg
Suitable for: openSUSE 11.4, 12.x, 13.1, Leap 42.x
Not suitable: openSUSE 13.2
B. bootchart
First, install the bootchart package (bootchart 2 version of the program). If you are using openSUSE Leap 42.x or later, enable bootchart2 (and optional bootchart2-done) service:
systemctl enable bootchart2
systemctl enable bootchart2-done
If you are using openSUSE version 13.1 or earlier, go to YaST → (System) → Startup and enter kernel startup parameters:
initcall_debug printk.time = y quiet init = / sbin / bootchartd rdinitrd = / sbin / bootchartd
The next time you start your computer, the /var/log/bootchart.png image will be created to help you further optimize your system startup. For example, if you do not need an AppArmor who cares about security, you can disable the boot.apparmor service through the YaST Service Configuration Module.
Suitable for: openSUSE 11.4, 12.x, 13.1, 13.2, Leap 42.x
–jeroen
Posted in *nix, *nix-tools, Linux, openSuSE, Power User, SuSE Linux, Tumbleweed | Leave a Comment »
Posted by jpluimers on 2020/05/15
Nowadays, most OpenSuSE Linux services are systemd based. Listing those is simple with systemctl list-units --all (configured ones) and systemctl list-unit-files (nonconfigured ones as well), though their states can be many as the command-completion for the --state parameter:
# systemctl list-unit-files --state
abandoned deactivating failed masked not-found remounting-sigterm start-pre stop-sigkill waiting
activating deactivating-sigkill final-sigkill merged plugged running stop stop-sigterm
activating-done deactivating-sigterm final-sigterm mounted registered sigkill stop-post stub
activating-sigkill dead inactive mounting reload sigterm stop-pre tentative
activating-sigterm elapsed listening mounting-done reloading start stop-pre-sigkill unmounting
active error loaded mounting-sigkill remounting start-chown stop-pre-sigterm unmounting-sigkill
auto-restart exited making mounting-sigterm remounting-sigkill start-post stop-sigabrt unmounting-sigterm
The odd thing: not all states from the service list are in the completion. These are missing from the list-unit-files:
generated
static
transient
In the past, most services were System V based, where you can use service --status-all. Contrary to the documentation (which indicates “The –status-all option displays the status of all loaded service units.”), it lists all services.
On OpenSuSE though, it now lists both System V based and systemd based services in one go. Since usually there are no more System V services (virtually all have been migrated to systemd a few years ago), the netto result is systemd services.
Based on [WayBack] init.d – Command to list services that start on startup? – Ask Ubuntu
–jeroen
Posted in *nix, *nix-tools, Linux, openSuSE, Power User, SuSE Linux, Tumbleweed | Leave a Comment »
Posted by jpluimers on 2020/05/14
Back in the days, framing stuff from other sites would just work. Nowadays, often they don’t because of a variety of reasons, often the site not wanting to be embedded, which is OK with me.
But it pays knowing what they do and how they do it, to ensure it is not an accidental setting of the address bar URL to the wrong value like in
if(top != window) { top.location = window.location }
So here are some links for me to dig deeper when I encounter framing issues again:
[WayBack] Headers to block iframe loading
My basic idea for a workaround is to go through a proxy.
It looks like others had this idea too, so some links future reading via cors proxy – Google Search:
–jeroen
Posted in Development, JavaScript/ECMAScript, JSFiddle, Scripting, Software Development, Web Development | Leave a Comment »
Posted by jpluimers on 2020/05/14
I always thought this was the Ctrl+Shift+Up / Ctrl+Shift+Down in ModelMaker Code Explorer, but it is not: the CnPack navigation is the one that comes most close:
[WayBack] Is there a way in the editor to move from the interface section declaration of a method to its implementation (signature)?… – Bill Meyer – Google+
–jeroen
Posted in Delphi, Development, Software Development | 4 Comments »
Posted by jpluimers on 2020/05/14
Based on [WayBack] appletv – How can I show a read-only version of Google Calendar on Apple TV 4th generation? – Ask Different there is one choice that might work on Apple TV 3rd generation and 4th generation:
This is the only practical solution I dissected from [WayBack] How to surf the web and use Safari on Apple TV – Macworld UK: Here is how to browse the internet and watch web services on your Apple TV.
Installing requires a few steps as described at
Limiting to only Apple TV 4, another solution is also possible:
However the last solution is not a real web browser, so it does not allow a layout I’m using for the calendar, or actually two calendars:
The reason I need this is because my brother is mentally retarded having problems with abstract concepts like relative time and scheduling. Like me he is also easily distracted and not good at repeating tasks. So looking at a schedule at least once a day is tough for him.
He is very good at concrete topics, especially ones he can put to practice right away like “will it rain on my way to work”. That makes him look at this web page in the first place.
Currently this calendar is shown on a monitor by a Raspberry Pi attached to it.
But I might go for the Apple TV 3 route later on.
–jeroen
Posted in Apple, Apple TV, Development, iOS, iOS Development, Mobile Development, Power User | Leave a Comment »
Posted by jpluimers on 2020/05/14
Patch Windows now. Attackers can exploit CVE-2020-1048 with a single PowerShell command:
Add-PrinterPort -Name c:\windows\system32\ualapi.dll
Attackers can exploit CVE-2020-1048 with a single PowerShell command:
Add-PrinterPort -Name c:\windows\system32\ualapi.dll
On an unpatched system, this will install a persistent backdoor, that won’t go away even after you patch.
See https://windows-internals.com/printdemon-cve-2020-1048/ for more details.
https://twitter.com/aionescu/status/1260466215299973121
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The Wiert Corner - irregular stream of stuff 