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Security by obscurity vs standard port
When configuring production servers, is it better to use standard ports or non-standard ports ("security by obscurity")?
For SSH, should we use standard port 22 or some unknown port, such as 8756?
For SQL Server, should we use standard port 1433 or non-standard port (e.g. 3433)?
We setup firewalls on our servers.
These firewalls allow access to our ( Read more... ) -
What NTP server to use?
What NTP server do you use to synchronize time on your computer (servers)?
I try to use time.nist.gov now, but it seems that time jumps back and forth with every synchronization [by up to ~15 seconds]. Originally posted at: https://dennisgorelik.dreamwidth.org/213811.html -
Is time on your computer correct?
My computer is 0.4 seconds off:
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https://time.is/
Your clock is 0.4 seconds behind.
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What does time.is show for your computer? Originally posted at: https://dennisgorelik.dreamwidth.org/213630.html -
Intel Xeon E-2136 CPU Temperature
Earlier (2021-10-30) we also measured Intel Xeon CPU temperature.
Intel Xeon CPU reaches much higher temperatures than AMD EPYC.
Healthy Intel Xeon (Adv-2-LE) reached around +70C under stress.
Unhealthy Intel Xeon reached 97+C and started CPU throttling
Below temperature measurements are for "Healthy" Intel Xeon CPU in "Idle", "Stress Starts" and " ( Read more... ) -
AMD EPYC 7313 CPU temperature
Yesterday we thought that the temperature that "sensors" command showed - is a "PCI adapter" temperature.
We also thought that Centos8 drivers, currently, do not support CPU temperature measurement on AMD EPYC.
Today we learned that "Tdie" is, actually, CPU temperature.
We also discovered that AMD EPYC 7313 does not heat much: 55C maximum (compare vs ( Read more... ) -
AMD EPYC 7313 - how to measure temperature?
10 days ago we ordered "Advance-4" server on OvhCloud.
(See Dedicated Server Hosting: CPU overheating)
OvhCloud promised to setup "Advance-4" server in 72 hours (3 days).
10 days later, OvhCloud prepared this server for us.
Unfortunately, temperature measurement utilities [that worked on Intel servers]:sudo -s dnf install -y lm_sensors
sudo -s sensors- ( Read more... ) -
Dedicated Server Hosting: CPU overheating
At PostJobFree we consider potential migration to OvhCloud dedicated servers hosting.
1) ~6 weeks ago we ordered Advance-2-LE server.
We started running ElasticSearch percolator on that server.
2) 5 weeks later, the server hanged.
OvhCloud support rebooted the server and the server continued working.
3) We reviewed /var/log/messages on the server and ( Read more... ) -
$1.344T Covid-panic spending
Democrats were able so suck from the US budget (that was already under heavy deficit) - additional $1.344T (about 1/3 of $4.047T US government revenue).
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https://www.cbo.gov/system/files/2021-10/57476-MBR.pdf
Refundable Tax Credits $778B
Coronavirus Relief Fund $243B
Small Business Administration $323B
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This huge spending explains why Democrats keep ( Read more... ) -
Ivano-Frankivsk Oblast - Google Street View - May 2015
Rakivchyk, Ivano-Frankivsk Oblast
Google Street View - May 2015
https://www.google.com/maps/@48.5704142,24.9466614,3a,75y,313.66h,91.06t/data=!3m6!1e1!3m4!1sz2FDnp2Kxnv4_lD4KBVm7Q!2e0!7i13312!8i6656
Prut river
https://www.google.com/maps/@48.53665,24.9988967,3a,75y,49.34h,62.73t/data=!3m8!1e1!3m6!1sAF1QipNsfO_ds66Y7TJb5PjK97J2GVyi7RM6mb0l9JO9!2e10!3e11 ( Read more... )
