via [WayBack] Just was sneaking around YouTube and found this video showing how to use DDetours library to hook Win32 api. – Mahdi Safsafi – Google+
–jeroen
Archive for September, 2018
YouTube video how to use DDetours library to hook Win32 API in Delphi
Posted by jpluimers on 2018/09/18
Posted in Delphi, Development, Software Development | 3 Comments »
Do change your underwear often, but not your passwords. Keep both of your desk and do not share them with anyone.
Posted by jpluimers on 2018/09/18
Maastricht University got 2 out of 3: [WayBack] https://twitter.com/ml2mst/status/1030626908629811200 – Jeroen Wiert Pluimers – Google+
–jeroen
via [WayBack] Marti van Lin 🇳🇱 🇮🇱 on Twitter : “Some useful advice from @MaastrichtU #Security #passwords #computerintelligence 😂😂😂 cc: @nixcraft… “
https://twitter.com/ml2mst/status/1030626908629811200
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Posted in Power User, Security | Leave a Comment »
(88) swopper office chair: how to assemble and adjust – YouTube
Posted by jpluimers on 2018/09/17
Interesting chair. Bit pricy, but I tried it and like it!
https://www.youtube.com/watch?v=K2BX_BNAaBk
–jeroen
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Some interesting presentations by Arjen Kamphuis
Posted by jpluimers on 2018/09/17
The missing of [WayBack] Arjen Kamphuis (@ArjenKamphuis) | Twitter, made me revisit some of his past videos. In addition, I made the list quite a bit longer, as I was not aware he made so many presentations.
Many, but not all, of these videos are listed no YouTube video channel of Arjen Kamphuis.
Be sure to read the book Information Security for Journalists – Gendo he co-authored with Silkie Carlo.
- Missing Wikileaks Journalist Arjen Kamphuis and Youtuber Bill Smith; Zoon Politikon Streamed live on Sep 3, 2018
- Arjen Kamphuis – Privacy, digital crime & espionage; exec(ut) Published on Jul 26, 2018
- Presentatie Arjen Kamphuis – Partnerbijeenkomst Noordwijk Marketing; Visit Noordwijk Holland Published on Jul 2, 2018
- Wiv Sleepwet informatieavond PP Utrecht; Piratenpartij Published on Mar 15, 2018
- RTL4 Stemsoftware veiligheid rawtape; Arjen Kamphuis Published on Mar 14, 2018
- Defend yourself in this digital world. No one else will do it for you. | Arjen Kamphuis | TEDxDelft; TEDx Talks Published on May 9, 2018
- deel3 – Sleepwet keynote Arjen Kamphuis PP Utrecht; Piratenpartij Published on Mar 12, 2018
- Arjen Kamphuis talks to RT Int 27102017; Producers Published on Oct 28, 2017
- William Binney & Arjen Kamphuis – The Dangers of Success – Cambridge University 12-10-2017; Arjen Kamphuis Published on Oct 22, 2017
- William Binney & Arjen Kamphuis – The Dangers of Success. Cambridge University. 12/10/2017.; cueims cueims Published on Oct 15, 2017
- Arjen Kamphuis – The IT of another Europe; Openfest Bulgaria Published on Dec 1, 2016
- BalCCon2k16 – Arjen Kamphuis – The IT of another Europe; BalCCon – Balkan Computer Congress Published on Oct 2, 2016
- Arjen Kamphuis Keynote spreker | PlanMen WFM congres 2016; PlanMen Published on Sep 28, 2016
- Ancilla Tilia interviewt Arjen Kamphuis; Welk probleem zijn we ook al weer aan het oplossen?; Cafe Weltschmerz Published on Mar 12, 2016
- Ancilla Tilia en Arjen kamphuis; Hoe betrouwbaar zijn stemcomputers?; Cafe Weltschmerz Published on Apr 29, 2016
- Ancilla Tilia en Arjan Kamphuis; De Panama Papers, de context en de media; Cafe Weltschmerz Published on Apr 20, 2016
- Arjen Kamphuis en Carlien Roodink over privacy en fintech; reinvent.money Streamed live on Oct 23, 2014
- Revolution 3.0: Arjen Kamphuis – Bitcoin FAQ – Symposium TwentseWelle; 100procentfat Published on May 7, 2014
- Privacy Enschede : Arjen Kamphuis, “Overheid past niet op onze privacy, dus doe het zelf.”; Dave Borghuis Published on Apr 26, 2014
- Arjen Kamphuis – How to Hide from the NSA | London Real; London Real Published on Jan 17, 2014
- Arjen Kamphuis – The Bitcoin Future | London Real; London Real Published on Jan 15, 2014
- Arjen Kamphuis – NSA & Drug Cartels | London Real; London Real Published on Jan 14, 2014
- Arjen Kamphuis – Hacktivist | London Real; London Real Published on Jan 12, 2014
- Arjen Kamphuis full interview – Transhumanisme; Arjen Kamphuis Published on Mar 4, 2012
- Arjen Kamphuis – Open IT strategie – Ubuntu-NL; profox111 Published on Mar 1, 2008
–jeroen
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Satellite internet is awfully slow for interactive use
Posted by jpluimers on 2018/09/17
A while back, Thomas Mueller assumed that Satellite internet could be an alternative for rural areas in Germany: [WayBack] > Auch der Internet-Anschluss über Satellit funktioniere allenfalls quälend langsam <Das kommt mir aber ziemlich seltsam vor… – Thomas Mueller (dummzeuch) – Google+ as a response to [Archive.is] Telekom-Posse: Wirt soll eine Million Euro für schnelles Internet zahlen – WELT.
So I summed up what throttling to 600 (optimistic) or 1000 millisecond (realistic) latency on a 10 megabit connection means: awfully slow for interactive use.
The problem with satellite based internet is latency times: 500 milliseconds is the physical minimum for a geostationary connection. It can easily double with overbooked connections (default with consumer DSL/Cable/Fiber).
The latency combined with the very chatty nature of most applications, is the real killer for your experience.
Compare that to my speeds 2 years ago: https://wiert.me/2015/10/05/fiber-to-fiber-speed-beats-cable-to-fiber-speed-by-a-factor-2-all-three-internet-connections-are-in-the-same-house/
I just did a comparison with the fiber connection at my brother (who lives some 20 miles away) and work too and re-checked the fiber connections in the article (they stayed the same).
- fiber 1 = home
- fiber 2 = home
- fiber 3 = brother
- fiber 4 = work
Traceroute results:
- fiber 1 to fiber 2: 5 milliseconds
- fiber 3 to fiber 2: 8 milliseconds
- fiber 4 to fiber 2: 4 milliseconds
- cable to fiber 2: 10 millseconds
- ADSL to fiber 2: 15 millseconds
With these, you can have > 50 connections per second.
Satellite gives you 2 connections per second if you are lucky.
The blog page takes ~160 web requests.
- DOM content load ~ 1.0 seconds
- Full load finished ~2.2 seconds
- Render finished ~5.0 seconds
I throttled it down to Satellite speed:
- 10 megabit downstream
- 2 megabit upstream
- 600 millisecond latency
Now this is the load:
- DOM content load ~ 2.9 seconds
- Full load finished ~9.9 seconds
- Render finished ~10.0 seconds
Increasing the latency to 1000 milliseconds brings this:
- DOM content load ~ 4.2 seconds
- Full load finished ~11.8 seconds
- Render finished ~14.9 seconds
Fully loading gmail.com or booking .com with 1000 millisecond latency takes over 30 seconds.
References:
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Posted in Internet, Power User | 2 Comments »
When Windows 8.1 gives 80070643 on applying Office 2013 SP1
Posted by jpluimers on 2018/09/17
Steps to try first:
- Check
%windir%\Windowsupdate.log(on my system, it did not reveal anything special) - In an administrator command prompt, run
sfc /scannow(which takes a few minutes to run) - Reboot
- Run Clean Manager
%windir%\System32\cleanmgr.exe(ensure to clean up update files: it can take tens of minutes to run) - Reboot
- Download the SP1 files (I needed 32-bit x86)
- Install SP1 manually
- If it still hangs:
- In
Appwiz.cpltry a “Repair” of the Office 2013 installation - If it works: Reboot, otherwise:
- Uninstall Office 2013
- Disable the network adapter
- Reboot
- Check if KB3173424 is installed (check it with
Appwiz.cpl)- if not: download on a different machine, transfer over USB, install, then reboot
- Check ifKB3172614 is installed (which has a younger Windows Update Client)
- if not: downloadon a different machine, transfer over USB, install, then reboot
- Enable the network adapter
- Let Windows scan for updates and install them
- If you get an error 80070463 or 80070663: just reboot and retry the updates.
- Reboot
- Run Clean Manager
- Install Office 2013
- Reboot
- In
- Let Windows scan for updates and install them
- Reboot
- Run Clean Manager
- Reboot
The KB3172614 should also alleviate long during (dozens of minutes) high CPU usage of svchost.exe and TiWorker.exe when searching for Windows updates.
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Not cool: openSuse Tumbleweed switched DHCP clientID algorithm on Raspberry Pi 3, so now all devices get a non-static DHCP address
Posted by jpluimers on 2018/09/15
Not sure in which changeset this happened, but here is one example:
- old DHCP client ID
1:b8:27:eb:1a:b1:ec - new DHCP client ID
ff:eb:78:a9:4:0:1:0:1:22:6:67:49:b8:27:eb:78:a9:4
The first one was marked static in the DHCP server, which means the Raspberry Pi now did get a different IP address.
This messes up a few places that cannot do proper address resolution.
Anyone who knows where this has changed / is configured?
These did not help finding the cause:
- [WayBack] dhcp – isc dhcpd: how to insert option 61 (client id) into dhcpoffer – Server Fault
- [WayBack] networking – Wrong IP address from DHCP client on Ubuntu 18.04 – Super User
Edit
As commented by Leen below, this is about
Wicked changed its defaults to use this DHCPv6 compatible RFC4361 client-id in favour of the older RFC2132 client-id. However, this has caused some issues with older DHCPv4 servers and existing setups where the client-id stored by the server is used to assign a (static) address. It is recommended to fix this server-side, but still, wicked provides several ways of addressing this issue
So here are some links:
- [WayBack] RFC 4361 – Node-specific Client Identifiers for Dynamic Host Configuration Protocol Version Four (DHCPv4)
- [WayBack] RFC 2132 – DHCP Options and BOOTP Vendor Extensions
- [WayBack] wicked-0.6.47-lp150.1.1.x86_64.rpm 15.0 Download (note “mt” is “Marius Tomaschewski” – Google Search)
2018-02-02 - mt@suse.de - version 0.6.44 - dhcp4: use rfc4361 client-id as new default for ethernet on sle15 (fate#323576). It can be also enabled/disabled in wicked-config(5). - client: fixed broken wicked arp utility command (bsc#1078245) - cleanup: add mising/explicit designated field initializers - pkgconfig: fix to request libnl3 instead of libnl1 - dbus: add missing DBUS_ERROR_FAILED type to a dbus_set_error call and enforce formatting input as string when an extension did not returned any error message. - Removed patch included in the source archive [- 0001-wickedd-explicitly-unbind-slaves-on-deletion.patch]
- [WayBack] Release version-0.6.44: version 0.6.44 · openSUSE/wicked · GitHub
- [WayBack] Commits · openSUSE/wicked · GitHub: version-0.6.44
- [WayBack] FAQ · openSUSE/wicked Wiki · GitHub
- [WayBack] Merge pull request #753 from rtorrero/man-config-rfc4361 · openSUSE/wicked@521d348 · GitHub
- [WayBack] Update man to match new DHCPv4 rfc4361 client-id · openSUSE/wicked@35d913a · GitHub
- [WayBack] Release Notes | SUSE Linux Enterprise Server 15 GA: Wicked: Using RFC 4361 DHCPv4 client-id on Ethernet REPORT BUG#, in which the description of the new RFC 4361 client-id does not match my above observations.
The traditionally used RFC 2132 DHCPv4
client-idon Ethernet is constructed from the hardware type (01for Ethernet) and followed by the hardware address (the MAC address), for example:01:52:54:00:02:c2:67
The RFC 4361
client-idstarts with0xff(instead of the hardware type), followed by the DHCPv6 IAID (the interface-address association ID that describes the interface on the machine), followed by the DHCPv6 DUID (client-idwhich identifies the machine).Using the above hardware type-based and hardware address-based DUID (LLT type used by default), the new RFC 4361 DHCPv4
client-idwould be:- Using the last bytes of the MAC address as the IAID:
ff:00:02:c2:67:00:01:xx:xx:xx:xx:52:54:00:02:c2:67 - When the IAID is a simple incremented number:
ff:00:00:00:01:00:01:xx:xx:xx:xx:52:54:00:02:c2:67
- Using the last bytes of the MAC address as the IAID:
- [WayBack] [Bug 1095111] Release notes should mention Wicked switching to RFC4361
–jeroen
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Posted in *nix, Hardware Development, Linux, openSuSE, Power User, Raspberry Pi, SuSE Linux, Tumbleweed | 6 Comments »
Google Chrome Web Browser 69 changes
Posted by jpluimers on 2018/09/15
[WayBack] Google Chrome Web Browser 69 changes: most are not talked about (like excess whitespace, address bar search algorithm changes).
–jeroen
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Just in case you are wondering where these “Trending on Google” posts in your stream come from…
Posted by jpluimers on 2018/09/14
[WayBack] Just in case you are wondering where these “Trending on Google” posts in your home stream come from and how to get rid of them: https://plus.google.com/settings… – Thomas Mueller (dummzeuch) – Google+
For my link archive:
https://plus.google.com/settings
–jeroen
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XS4ALL Software download site
Posted by jpluimers on 2018/09/14
When you want to download actual known amounts of bytes, then use the [Archive.is] XS4ALL Software download site which has plenty of files in both sizes that are powers of 1024 and powers of 1000, so you can use the units that fits you best:
- [WayBack] Binary prefix – Wikipedia
- [WayBack] File size – Wikipedia
- [WayBack] Units of information – Wikipedia
I usually run commands like these:
traceroute download.xs4all.nl & wget -O /dev/null http://download.xs4all.nl/test/2GiB.bin
traceroute download.xs4all.nl & wget -O /dev/null http://download.xs4all.nl/test/10GiB.bin
The first is for speeds up to ~100 megabit/second, the latter for speeds up to ~1 gigabits/second; wget examples based on [WayBack] linux – How do I request a file but not save it with Wget? – Stack Overflow.
From the xs4all shell servers, you have about 1 gigabit speed. At home it is about 80 gigabit.
Since the download is over a longer period of time, you get a better estimate of average speeds than regular speedtest varieties do.
100MB.bin 2014-05-28 22:18 95M
–jeroen
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Posted in Internet, ISP, LifeHacker, Power User, SpeedTest, xs4all | Leave a Comment »
The Wiert Corner - irregular stream of stuff 