Latest Server related questions

Score: -1
njahnke avatar
How do I force a Samsung 870 QVO drive to flush its SLC cache?
ph flag

I have 16 Samsung 870 QVO 8TB drives in mdraid 0 (striped) with XFS on top. Rocky Linux 8. Mixed read/write load, read volume over 100x write. Since so little is written I thought I could use these drives and save money without sacrificing performance. I bought them under the assumption that they would slowly empty their SLC cache to QLC. Instead, apparently they wait until idle and then flush it all at ...

Score: 0
What does default gateway from ipconfig on Windows means?
gb flag

What does Default gateway properties of every network adapter from ipconfig /all command's output means?

As far as I understand, default gateway is the next-hop IP that is assigned to address 0.0.0.0 in the routing table and can be seen by route print command.

How Default gateways from network adapter's properties correspond to the one from routing table?

Is there an analogy of this Default gateway

Score: 2
Is it possible to use MTA-STS in Postfix without overriding DANE?
jp flag

The SMTP MTA Strict Transport Security RFC 8461, 2 clearly states that:

However, MTA-STS is designed not to interfere with DANE deployments when the two overlap; in particular, senders who implement MTA-STS validation MUST NOT allow MTA-STS Policy validation to override a failing DANE validation.

Currently it seems that with the following Postfix configuration the MTA-STA overrides DANE (RFC 6698) v ...

Score: 0
Getting Debian to send email to a real address
gi flag

I'm running Debian on an old computer on my home network to do stuff like netatalk, dlna,...

I have a number of programmes I've written myself that can send e-mail using the credentials for my regular e-mail.

I've set up /etc/aliases so that all mail goes to root, but it would be better if it could go to my real e-mail address -- like my programmes do?

Is this possible?

I suppose I could write a pro ...

Score: -1
Willem Kossen avatar
Synology UPS - more than 5 clients?
um flag

I have a Synology nas, with an ups attached to it. several other things need to respond by gracefully powering down in case of a power-outage. However, in Synology user interface, you can only list 5 ip-adresses as clients for the UPS server running on the nas (NUT). I found where in the config the actual lists are stored, so I might be able to add more ip-addresses, but I'm quite 'scared' of the possib ...

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