Latest Server related questions

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Ben avatar
how can I add a PWA on iOS and Android in 2022?
us flag
Ben

I have to create a link that people can access from their home screen on their phone. On iOS that is no problem, open a link in safari and select "Add to Homescreen" from that center menu on the bottom but how can I do it on Android?

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Postfix check_recipient_mx_access not work
us flag

I have configured the check_recipient_mx_access option in Postfix in order to reject emails to misspelled domains. We have a system that sends air flight confirmations and many times users write the contact email account incorrectly.

The documentation indicates the following

check_recipient_mx_access type:table
        Search the specified access(5) database for the MX hosts for the
        RCPT TO do ...
Score: 0
John Speavack avatar
Can I recover a db password?
bd flag

For our project in GCP, the app has a production Postgres db instance, we don't have the current password, therefore we can't access the db other than through the app. If we change the password, then we can access the db let's say using PGadmin but the app becomes inaccessible. We don't know where in the code that was deployed the password is. Is there any way to recover this password? or where in the c ...

Score: 1
Kacper G. avatar
docker/podman container with public IPv6
br flag

I have got a server with IPv4 address and IPv6 /64 subnet (let's say 2001:db8::/64), both public. Server itself has the following IPv6 address: 2001:db8::1/64. The gateway is fe80::1 (which causes problems with docker/podman, because it's not in the same subnet).

My goal is to create docker/podman container (WWW server, for example) with its own public IPv6 (let's say 2001:db8::2/64). From my understandi ...

Score: -1
Time Out or High Ping on Regular Intervals in Windows 11
ae flag

I only noticed this when I always get disconnected playing online games. So I investigated pinging Google.com or 8.8.8.8. So I noticed I get high ping or even request timeout on regular intervals. So I pinged my router/gateway (192.168.xxx.xxx) and got the same results.

enter image description here

But I tried pinging the same wireless network using my Mac and Android phone and I don't see this issue. It must be my Windows laptop. I ...

Score: 1
Blasta avatar
Haproxy Block URL with specific character URL ha
lc flag

We found that one of the our applications have vunerability, vendor of app recommend block all requests that contains ${ in URL. I've tried path_reg for it. But it now working, also tried $%7B, but it not working too. Maybe I need some escape symbols?

Score: 0
New to Storage Spaces - I am lost if I have configured it correctly
cn flag
RTM

I would very much appreciate your help!

I am new to Storage Spaces and RAID in general and I would like to have a fail-safe drive configuration using 3 drives - 1x4TB and 2x2TB on a Windows Server 2022 Datacenter Server.

As far as my understandings go, this drive configuration should be sufficient to achieve no data loss in case 1 of the drives fail.

So far I have configured a Storage Spaces Pool with  ...

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Francesco Casula avatar
Load Balancer with stickyness and in-order delivery when scaling down
pk flag

I wonder what would happen if, say, we use an HAProxy Load Balancer with persistence (sticky sessions) and a server goes down (or we want to scale down).

According to their docs:

When doing persistence, if a server goes down, then HAProxy will redispatch the user to an other server.

My problem is with the definition of "down" here. If we're running this on Kubernetes, does "down" mean that the pod  ...

Score: 0
How does non persistent parallel HTTP connections work?
in flag

https://i.stack.imgur.com/UepU0.png

Here

  1. First RTT is for TCP connection establishment

  2. Second RTT is to request the webpage and response(few bytes that gives structure of the page). Say the base file contains 2 elements called element1 and element2.

  3. Third RTT could be to establish the TCP Connection again for element1

  4. Fourth RTT could be to request for the element1 and receive its response.

 ...

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