Archive for the ‘Power User’ Category
Posted by jpluimers on 2022/01/12
On my research list: [Wayback] “ESXi” “Secure Boot” – Google Search.
Some links about it:
- [Wayback] Using ESXi Kickstart %firstboot with Secure Boot
- [Wayback] ESXi 6.7 – Secure Boot and startup script – VMware Technology Network VMTN
- [Archive.is] Secure Boot for ESXi 6.5 – Hypervisor Assurance – VMware vSphere Blog
- [Archive.is] Prepping an ESXi 6.7 host for Secure Boot – VMware vSphere Blog
- [Wayback] virtualization – ESXi 7.X file permissions – how to buypass new security measures – Server Fault
Even in ESXi 7.0 some files can still be edited, e.g. /etc/rc.local.d/local.sh. This script will be executed by /etc/rc.local, so you can add your commands there.
You just need to be aware that this script will not be executed if you have UEFI Secure boot enabled on your host.
- [Wayback UEFI Secure Boot for ESXi Hosts
Secure boot is part of the UEFI firmware standard. With secure boot enabled, a machine refuses to load any UEFI driver or app unless the operating system bootloader is cryptographically signed. Starting with vSphere 6.5, ESXi supports secure boot if it is enabled in the hardware.
…
UEFI Secure Boot Troubleshooting
If secure boot does not succeed at any level of the boot sequence, an error results.
The error message depends on the hardware vendor and on the level at which verification did not succeed.
- If you attempt to boot with a bootloader that is unsigned or has been tampered with, an error during the boot sequence results. The exact message depends on the hardware vendor. It might look like the following error, but might look different.
UEFI0073: Unable to boot PXE Device…because of the Secure Boot policy
- If the kernel has been tampered with, an error like the following results.
Fatal error: 39 (Secure Boot Failed)
- If a package (VIB or driver) has been tampered with, a purple screen with the following message appears.
UEFI Secure Boot failed: Failed to verify signatures of the following vibs (XX)
To resolve issues with secure boot, follow these steps.
- Reboot the host with secure boot disabled.
- Run the secure boot verification script (see Run the Secure Boot Validation Script on an Upgraded ESXi Host).
- Examine the information in the /var/log/esxupdate.log file.
- Run the Secure Boot Validation Script on an Upgraded ESXi Host
After you upgrade an ESXi host from an older version of ESXi that did not support UEFI secure boot, you might be able to enable secure boot. Whether you can enable secure boot depends on how you performed the upgrade and whether the upgrade replaced all the existing VIBs or left some VIBs unchanged. You can run a validation script after you perform the upgrade to determine whether the upgraded installation supports secure boot. [Read more]
–jeroen
Posted in ESXi6, ESXi6.5, ESXi6.7, ESXi7, Power User, Virtualization, VMware, VMware ESXi | Leave a Comment »
Posted by jpluimers on 2022/01/12
[Wayback/Archive Instructie beschermingsmiddelen en zelftests mantelzorgers en pgb | Publicatie | Rijksoverheid.nl
Instructie beschermingsmiddelen en zelftests mantelzorgers en pgb
Mantelzorgers en pgb-gefinancierde zorgverleners kunnen bij hun werk gebruikmaken van persoonlijke beschermingsmiddelen of mondneuskapjes. Cliënten kunnen onder voorwaarden gebruik maken van gratis zelftests. In deze instructie staat wanneer zorgverleners persoonlijke beschermingsmiddelen kunnen aanvragen. En wanneer cliënten zelftests kunnen aanvragen.
Download ‘Instructie beschermingsmiddelen en zelftests mantelzorgers en pgb (staand, A3)’1/2
[Wayback] PDF document | 1 pagina | 95 kB
Publicatie | 08-10-2021
Download ‘Instructie beschermingsmiddelen en zelftests mantelzorgers en pgb (liggend, A4)’2/2
[Wayback] PDF document | 2 pagina’s | 130 kB
Publicatie | 08-10-2021
Via:
–jeroen
Posted in LifeHacker, Power User | Leave a Comment »
Posted by jpluimers on 2022/01/11
This gets the tweets I retweeted and have images in them:
from:@jpluimers filter:images filter:nativeretweets
Based on:
- [Wayback] twitter – How do I find my retweets of a certain account? – Web Applications Stack Exchange
from:@someone filter:nativeretweets [KEYWORD(s)]
This shows all retweets of @someone (including the optional KEYWORD(s)). If you retweeted the same tweet you can use @yourtwittername instead of @someone.
- This article gives you a robust overview of everything you need to know about advanced TweetDeck features.[Wayback] About advanced TweetDeck features
To search for mentions of #space from verified accounts, excluding Retweets, type the following in the search box: #space filter:verified -filter:nativeretweets
- [Wayback] Difference between -filter:retweet and -filter:nativeretweets in Twitter Search API 1.1 – Stack Overflow
I believe per TweetDeck documentation (https://support.twitter.com/articles/20170322) this is the difference:
filter:nativeretweets shows retweets from users who have hit the retweet button. filter:retweets shows old style retweets (“RT”) + quoted tweets.
Those are filtering FOR those types of results, but as you’ve done, the – is necessary to filter them out -filter:nativeretweets or -filter:retweets
- [Wayback/Archive.is] Twitter API 1.1 tweets / favorites (likes) / following / followers backup in web browser
/* Twitter API 1.1 tweets / favorites (likes) / following / followers backup in web browser
* Get your access keys to use Twitter API 1.1: https://dev.twitter.com/docs/auth/tokens-devtwittercom
* You can change Twitter API URL and Twitter screen_name, then execute script from a trusted web page without CSP protection like about:blank in a web browser console (F12 or Ctrl+Shift+K shortcut)
* A textarea will appear so you can copy/paste to save data as a CSV file or search tweets / users in your web browser (Ctrl+F shortcut)
* You can then view your backup in a spreadsheet editor like LibreOffice Calc
* You can also compare the backup with another one to see who unfollowed you, who changed their Twitter username by looking at the user ID or which tweet you retweeted / favorited was deleted (e.g. with the Linux diff command)
*
* Note about the tweets backup:
* Usually you will search tweets that you retweeted using Twitter web version (https://twitter.com/search) with a search like "from:your_username filter:nativeretweets keyword"
* But it is limited to the retweets of the last 7 days, like for the free version of the search API (https://developer.twitter.com/en/docs/tweets/search/overview/standard)
* An alternative is to search tweets in your user timeline with this script but it is limited to your last 3200 tweets (including retweets and replies)
* This script can be combined with the Twitter feature to backup data, which is not limited to your last 3200 tweets but you can only request a backup every 30 days
* To find tweets that you retweeted or favorited / liked from a specific person, you can open the CSV file with LibreOffice Calc, click on the column you want to search and press Ctrl+H to search a username
*/
–jeroen
Posted in Development, JavaScript/ECMAScript, Power User, Scripting, SocialMedia, Software Development, Twitter | Leave a Comment »
Posted by jpluimers on 2022/01/11
Via [Archive.is] Jilles Groenendijk on Twitter: “what @AppSecBloke said… “, from:
I don’t normally do this but here goes:
| First job |
STOP |
| Current job |
SENDING |
| Dream Job |
YOUR |
| Favorite food |
POTENTIAL |
| Favorite dog |
PASSWORDS |
| Favorite footwear |
OR |
| Favorite Chocolate bar |
MEMORABLE |
| Favorite Ice Cream |
DATA |
| Your Vehicle color |
TO |
| Favorite Holiday |
PEOPLE |
| Night owl or earlybird |
WHO |
| Favorite day of the week |
COLLECT |
| Tattoos |
THIS |
| Favourite colour |
INFORMATION |
| Do you like vegetables |
FOR |
| Do you wear glasses |
SOCIAL |
| Favourite season |
ENGINEERING |
Read the rest of this entry »
Posted in Facebook, Instagram, LifeHacker, Pen Testing, Power User, Security, SocialMedia | Leave a Comment »
Posted by jpluimers on 2022/01/11
Still a lot of people think that network speed depends on the vNIC driver and vNIC speed settings.
This is not true: it mainly depends on CPU and RAM speeds as that is where the bottleneck of virtual network processing is.
What does matter is the VM/host overhead is far less when drivers use paravirtualisation (i.e. shortcutting calls from the guest OS to the hypervisor) like PVSCSI for disk or VMXNET3 for networking. This means that VMXNET3 has even more performance than E1000.
Read the rest of this entry »
Posted in ESXi5, ESXi5.1, ESXi5.5, ESXi6, ESXi6.5, ESXi6.7, ESXi7, Power User, Virtualization, VMware, VMware ESXi | Leave a Comment »
Posted by jpluimers on 2022/01/10
For my link archive:
- [WayBack] VMware ESXi S.M.A.R.T Health Monitoring | ESX Virtualization based on the built-in tooling, showing how
/usr/lib/vmware/vm-support/bin/smartinfo works (contrary to the article, this is a binary, not a smartinfo.sh script, at least in ESXi 6.0 and higher). Note this does not list all SMART parameters, so can give you a false sense of being on the safe side.
- [WayBack] Determine TBW from SSDs with S.M.A.R.T Values in ESXi (smartctl) | Virten.net which is based on smartctl from [WayBack] smartmontools and provides a link to the [WayBack] smartctl-6.6-4321.x86_64.vib.
- Download smartctl-6.6-4321.x86_64.vib
- Copy the VIB to the /tmp/ directory of an ESXi host
- SSH to the ESXi host
- Set the VIB acceptance level to CommunitySupported
# esxcli software acceptance set --level=CommunitySupported
- Install the package (Maintenance Mode or Reboot is not required)
#esxcli software vib install -v /tmp/smartctl-6.6-4321.x86_64.vib
The tool is located at /opt/smartmontools/smartctl and works just like the Linux version.
Locate physical disks with ls -l /dev/disks/
/opt/smartmontools/smartctl -d [Device Type] –all /dev/disks/[DISK]
- [WayBack/Archive.is] ESXi S.M.A.R.T. health monitoring for hard drives (2040405) describing the internal tools from an ESXi 5.x perspective
The first two links are via [WayBack/Archive.is] esxi 6 monitor sata temperature – Google Search; the last links via [WayBack/Archive.is] esxi 6 view smart – Google Search.
–jeroen
Posted in Power User, Virtualization, VMware, VMware ESXi | 2 Comments »
Posted by jpluimers on 2022/01/10
200 year old topography of The Netherlands:
Hoe zag jouw omgeving er vroeger uit? Kijk nu zelf op Topotijdreis.nl. De website van het Kadaster met kaarten tot 200 jaar oud.
[WayBack/Archive.is] Topotijdreis: 200 jaar topografische kaarten
Via:
–jeroen
Read the rest of this entry »
Posted in LifeHacker, Power User | Leave a Comment »
Posted by jpluimers on 2022/01/07
Ik had dus gemist dat in oktober 2021 de spelregels rondom een corona herstelbewijs.
De reden is dat de communicatie rondom corona in Nederland niet echt top is.
Het laatste voorbeeld: terwijl boosters voor iedereen van 18 jaar en ouder beschikbaar zijn en sommige vaccinatielocaties inmiddels weer vrije inloop hebben, hebben velen dat in mijn omgeving nog niet aangevraagd, want “ik heb nog geen uitnodiging ontvangen”, en/of “ik wist niet dat het al kon”. Anderen ervaren hetzelfde, dus dit soort berichten zijn belangrijk:
Terug naar herstelbewijs: de meeste linkjes hieronder zijn namelijk niet van GGDGHOR, RIVM of Rijksoverheid.
De enige GGD website die de communicatie rondom herstelbewijs qua volledigheid en duidelijkheid op orde heeft is GGD zhz (Zuid-Holland Zuid). Complimenten!
Hier de linkjes (via [Wayback/Archive] herstelbewijs corona aanvragen – Google Search):
–jeroen
Posted in Covid-19/SARS-CoV-2/Coronavirus, Health, Power User, Vaccinations | Leave a Comment »
The Wiert Corner - irregular stream of stuff 