Check out this talk at The National Museum of Computing in the UK held for the 50th anniversary of the founding of Cray Research.
Cray Research : Discover, Explore and Celebrate
Enjoy.
Random Squawking - more of a really slow blog - various topics from coding to living. Lets just see how it goes.
Check out this talk at The National Museum of Computing in the UK held for the 50th anniversary of the founding of Cray Research.
Cray Research : Discover, Explore and Celebrate
Enjoy.
Using the Google dig tool on
https://toolbox.googleapps.com/apps/dig/
Gives the correct result but the local Sky Broadband command line equivalent look up that is supposed to be using Goggle DNS server ....
% dig @8.8.8.8 domainname.com MX
Gives a stale out of date answer hours after the result should have changed.
Given a non-existant DNS server with an address similar to Googles connection is not possible
% ping 8.8.8.99
PING 8.8.8.99 (8.8.8.99): 56 data bytes
Request timeout for icmp_seq 0
Request timeout for icmp_seq 1
^C
but DNS look up succeeds
% date; dig @8.8.8.99 apple.com MX
Mon 2 May 2022 14:29:38 BST
; <<>> DiG 9.10.6 <<>> @8.8.8.99 apple.com MX
; (1 server found)
;; global options: +cmd
......snip;; ANSWER SECTION:
apple.com. 3600 IN MX 10 rn-mailsvcp-ppex-lapp15.apple.com.
apple.com. 3600 IN MX 10 rn-mailsvcp-ppex-lapp24.apple.com.
apple.com. 3600 IN MX 10 rn-mailsvcp-ppex-lapp34.apple.com.
apple.com. 3600 IN MX 10 rn-mailsvcp-ppex-lapp35.apple.com.
apple.com. 3600 IN MX 10 rn-mailsvcp-ppex-lapp44.apple.com.
apple.com. 3600 IN MX 10 rn-mailsvcp-ppex-lapp45.apple.com.
apple.com. 3600 IN MX 10 ma1-aaemail-dr-lapp01.apple.com.
.......
Gets you an answer. How is this possible or correct ????
This has the follow on implications :
1) DNS lookup results can be stale or incorrect hours after a change at source.
2) Changing the DNS settings on your PC/Device makes no difference as the "Sky Results" are used in any case.
3) All DNS lookups can be recorded / traced at the ISP level.
4) Time to live should be set low on domains that are going to change, then reset after the change has propagated to a longer time, to avoid excessive lookups. This would also avoid any excuse by Sky for keeping stale data when no-one else does.
5) DNS interception by Sky Broadband could be considered a man-in-the middle compromise of the correct functioning of the DNS system.
6) Of the 6 failures ( lasting over 5 minutes ) of Sky consumer broadband that I have experienced and investigated over the last few years, 3 have been wire to the house failures and 3 have been DNS service failures. The DNS service was designed to be failure resilient by using recursive lookups to higher domains but if all queries are intercepted by an intermediary and that intermediary has a problem the robustness of DNS is compromised.
Only solutions are to use external tools to check against Sky DNS results. Or use a VPN. Not sure if other consumer ISPs have this configuration. A colleague doing the exact same look ups on another ISP server did not see the delay in the domain data being updated.
The true-believer syndrome merits study by science. What is it that compels a person, past all reason, to believe the unbelievable. How can an otherwise sane individual become so enamored of a fantasy, an imposture, that even after it's exposed in the bright light of day he still clings to it — indeed, clings to it all the harder?… No amount of logic can shatter a faith consciously based on a lie.
— M. Lamar Keene and Allen Spraggett
As recent at 2002 Filed at centerforinquiry.org "Undercover Among the Spirits: Investigating Camp Chesterfield "
Joined a book club in first lock down and have been reading new and recycled books over the last couple of years. Some are found and re-read from the best books box in the attic, some new via Kindle or second hand via ebay / Amazon marketplace.
In no particular order - these are great reads.
Examples of deviant and toxic abusive with coercive control behaviour can be found in multiple religious organisations :
They Went to Bible College to Deepen Their Faith. Then They Were Assaulted—and Blamed for It.

The Drag and Drop behaviour has certainly changed in Monterey most noticeably in the "Grab and drop" actions.
Factors that demonstrate this issue are:
Note that under "Pointer control" there are sub options "Trackpad options" and Mouse Options but only under trackpad is there an option to Enable Dragging. The Enable dragging choice has With drag lock, Without drag lock and Three finger drag.
Setting The enable dragging choice to Three fingers just upsets Mission control Desktop management. Enable dragging with drag lock seems to work best.
Workaround
When using a trackpad in list or column mode, after selecting the files to move briefly push [alt] key to grab and move the files. The [alt] key will trigger the "copy files on move" action but if you release the alt before dropping the files the action reverts to a move rather than copy (when moving with in the same disk volume).
Other folks have reported that switching off force and Septic feedback fixes this behaviour.
Set the Trackpad option to enable dragging.
Mouse option
Context is Monterey on a Mac mini 2020 and seen on Mac book Air M1.
Update Aug 2025
Comments by NASCompares about Synology choosing to limit HDDs to own brand drives only.
And Ars Technica https://arstechnica.com/gadgets/2025/04/synology-could-bring-certified-drive-requirements-to-more-nas-devices/
The latest 2025 Devices require Synology branded drives ( made by Seagate with special firmware apparently)
------------------
Update Nov 2024 A couple of articles for further reading
Ars Technica : “Clearly predatory”: Western Digital sparks panic, anger for age-shaming HDDs"
Wired : Zero-Click Flaw Exposes Potentially Millions of Popular Storage Devices to Attack
The SynologyPhotos application package comes preinstalled and enabled by default on Synology’s line of BeeStation storage devices but is also a popular application downloaded by users of its DiskStation storage systems ...
--------------------
Remember - digital data can both last forever and be gone in a milli-second. The difference is backups and reliable storage devices.
This is a great NAS from Synology, a company with a solid reputation and great support organisation.
Storage devices are as important as the main PC in any computing environment that has grown to more than a couple of PCs and devices. Ease of use and reliability are key for on-going satisfaction.
You can move data four main ways between a Mac and the device :
Use SMB and not AFP for modern Macs.
TimeMachine the mainstay of Mac based backups can be used with with NAS. Shared folders must have the "discoverable by Bonjour" over SMB set on for the shared folder.
When first setting up using bfs be sure to a put in all the drives that will be used. I started with two drives then added two more but it took the device about 12 hours each to weave the later drives into the existing configuration. This is a result of having to redo the on-disk data redundancy layout for the added drives.
Use the same size drives if possible - I have 4 * 7TB drives that because of the redundancy scheme this provides 21 TB of storage and 1 drive failure redundancy. Use proper NAS drives available from WD or Toshiba for best longevity.
Adding 2 * 1TB cache M1 ssd sticks helps performance when the load ramps up but I do suspect that write through to disk happens. Use at least gigabit wired networking, not wifi, for moving larger amounts of data. I was getting reliably about 100Mbytes/second writing from a MacBook Pro with ssd drive over a wired connection. TimeMachine is a bit slower but not by much. For best performance and ease of use, when copying large quantities of small files, bundle your data into large chunks using disk images made by Disk Manager application.
I was stuck for a while getting "Not enough space to copy file." messages on both Mac systems that were using the device. After a very pleasant interaction with Synology technical support they found a quota setting on the user name was being correctly enforced. I had forgotten that I had put this user storage quota on early in the testing process. The support case opened and closed in the same day.
The disk manager software on the NAS has many options and can be extended with extra software. The fine grained controls over users and data access are great. This model has a Celeron processor and I suspect that the virtual machine experience may not be great. However for long term NAS usage lower power consumption is preferred. Best of all the device and software are activity supported by a mature company with a long track record.
Let's talk about the noise. In a silent office you can hear the device but it's not unpleasant. Being quieter than a coffee machine or someone tapping on a mobile phone. I imagine the NAS as a holding place for data chipmunks so the gentle activity noise is reassuring. Some extra sound dampening would be good though esp. when the drives are spinning up. The device drive activity is not predictable when using Time Machine or multiple shared folders.
I get the feeling that I have only scratched the surface of the features of this device but I have been very impressed so far. Overall a great device with the reassurance of an active support organisation, a very worthwhile addition to my computer community.
Battery power in case of mains failure can be added with a UPS. When the UPS has a USB connection the Synology device can be configured with the control Panel -> Hardware -> UPS to shutdown automatically when the battery gets low.
See the range of Synology NAS devices here.
Comparative review with other NAS devices here.