How can i connect two parallel UPS that sharing the same load?

I have a critical load .I want to connect two parallel UPS that sharing the same output, how can i control them??

it’s hard and danger to turn on both of them and synchronizing them. i want a controller name or a way to control them.

the controller must turn on one of them in a time and switching if any interutpion in the second UPS occured without disconnicting the load.

display – How to connect MacBook Pro (2020) to ultra widescreen monitor?

I have an ultrawide monitor that’s 3840 X 1200. It works perfectly fine with my windows laptop.

I now need to connect my work MacBook Pro provided to me, but under the list of resolutions (and extended hidden resolutions) none of them come close.

Is it a matter of the cable I’m using? I’m using a HDMI cable with a usb-c adaptor on the end to connect it to the MacBook.

amazon web services – EC2 Instance cannot connect to ECS Cluster

Helo,
I have empty AWS ECS Cluster but I am unable to put instances into it.
I wanted to use Launch templates and Autoscaling Group, but I am unable to assign created EC2 Instance.

The issue is in shown in ecs-agent.log

level=error time=2020-10-17T23:23:37Z msg="Unable to register as a container instance with ECS: RequestError: send request failedncaused by: Post "https://ecs.eu-central-1.amazonaws.com/": net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)" module=client.go
level=error time=2020-10-17T23:23:37Z msg="Error registering: RequestError: send request failedncaused by: Post "https://ecs.eu-central-1.amazonaws.com/": net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)" module=agent.go

Notes:

  • Using AMI ami-0eff571a24849e852
  • Cluster name: debug
  • Region is eu-central-1
  • Instance has no public IP
  • Instance is in 10.10.100.0/24 subnet (10.10.100.14) and VPN subnet is 10.10.0.0/16
  • Instance can reach the internet through NAT Instance:
(ec2-user@ip-10-10-100-14 ecs)$ ping google.com
PING google.com (216.58.212.142) 56(84) bytes of data.
64 bytes from ams15s21-in-f14.1e100.net (216.58.212.142): icmp_seq=1 ttl=109 time=50.1 ms
64 bytes from ams15s21-in-f142.1e100.net (216.58.212.142): icmp_seq=2 ttl=109 time=40.1 ms
  • DNS to outside is resolving fine
(ec2-user@ip-10-10-100-14 ecs)$ nslookup google.com
Server:     10.10.0.2
Address:    10.10.0.2#53

Non-authoritative answer:
Name:   google.com
Address: 216.58.212.142
  • Just to be sure, I have created Endpoints from VPC and Subnet where Instance is to ECS
  • I have attached the security group with no restrictions for test
  • ecs.config:
ECS_CLUSTER=debug
ECS_BACKEND_HOST=
(ec2-user@ip-10-10-100-14 ecs)$ nslookup ecs.eu-central-1.amazonaws.com
Server:     10.10.0.2
Address:    10.10.0.2#53

Non-authoritative answer:
Name:   ecs.eu-central-1.amazonaws.com
Address: 10.10.100.219

Does anyone have any suggestions?

High variance of SSH connect latency

I am trying to SSH to a remote server. Sometimes I connect quickly in under a second. Other times, it takes much longer – between 7 and 25 seconds.

I tried running with ssh -v for debugging. When it takes longer, it hangs on

debug1: Connecting to <hostname> [<ip_address>] port 22.

Any ideas what might be causing this issue? Or things I can do to debug it?

nvidia – Cannot connect second monitor via HDMI cable in Ubuntu 20.04

I just installed ubuntu 20.04 on my laptop. However, when I tried to connect my external monitor via HDMI cable the monitor is not detecting any signal.
I am using nvidia-driver-435. My GPU is “NVIDIA Corporation TU106GLM (Quadro RTX 3000 Mobile / Max-Q)”. I am using a HP G6-15 laptop. xrandr is not detecting the display

Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
eDP-1 connected primary 1920×1080+0+0 (normal left inverted right x axis y axis) 344mm x 193mm
1920×1080 60.03*+ 60.01 59.97 59.96 59.93 40.02
1680×1050 60.00 59.95 59.88
1600×1024 60.17
1400×1050 59.98 60.00
1600×900 59.99 59.94 59.95 59.82
1280×1024 59.95 60.02
1440×900 59.89
1400×900 59.96 59.88
1280×960 60.00 59.99
1440×810 60.00 59.97
1368×768 59.88 59.85
1360×768 59.80 59.96
1280×800 59.99 59.97 59.81 59.91
1152×864 59.97 60.00
1280×720 60.00 59.99 59.86 59.74
1024×768 60.04 60.00 59.95
960×720 60.00
928×696 60.05
896×672 60.01
1024×576 59.95 59.96 59.90 59.82
960×600 59.93 60.00
960×540 59.96 59.99 59.63 59.82
800×600 60.00 60.32 59.96 56.25
840×525 60.01 59.88
864×486 59.92 59.57
800×512 60.17
700×525 59.98
800×450 59.95 59.82
640×512 60.02
720×450 59.89
700×450 59.96 59.88
640×480 60.00 59.94 59.94
720×405 59.51 58.99
720×400 59.97
684×384 59.88 59.85
680×384 59.80 59.96
640×400 59.88 59.98 59.96
576×432 60.06
640×360 59.86 59.83 59.84 59.32
640×350 59.84
512×384 60.00
512×288 60.00 59.92
480×270 59.63 59.82
400×300 60.32 56.34
432×243 59.92 59.57
320×240 60.05
360×202 59.51 59.13
320×180 59.84 59.32
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
HDMI-1 disconnected (normal left inverted right x axis y axis)

I was earlier using ubuntu 18.04 on the same computer and the second monitor was working. I freshly installed 20.04 after erasing the previous version after deleting everything. I switched to lightdm switched back to gdm3 but nothing worked so far.In some answers I have found to edit

sudo nano /lib/modprobe.d/nvidia-kms.conf
and comment the options nvidia-drm modeset=1.
But it is not present on my computer. I can onlye find the nvidia-graphics-drivers.conf file on /lib/modprobe.d

I don’t know what is wrong. Please let me know if you need more information.

Is it possible to connect to MySQL which is in the Cloud Run container remotely?

Is it possible to connect to MySQL which is in the Cloud Run container remotely?


Details

Server 1 (slave server) - I have a Docker container (in Google Cloud Run) with MySQL-Server in it.
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Server 2 (main server) - I want to connect to MySQL via PHP.

Is it possible to do this?

P.s


I trying it to do, but I can not.