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Server Fault : Recent Questions and Answers

Find answers to your questions about Server Fault or help others by answering their Server Fault questions.

What's the Busybox default shell?

My guess is this defaults to Bash, but would like to know for sure. Thanks....

Asked on 11/29/2021 by vivekian2

2 answer

Templating with Linux in a Shell Script?

what I want to acomplish is: 1.) Having a config file as template, with variables like $version $path (for example apache config) 2.) Having a shell script that "fills in"...

Asked on 11/29/2021

13 answer

Change the order that an IPTABLE CHAIN is read (Using Fail2Ban)

I have some experience using iptables and fail2ban.Both are working as they should, but I would like to optimize the way packets are "DROPed" when IP & port probing...

Asked on 11/29/2021 by Chris Charles

1 answer

How to group inferred instances when computing sustained use discounts

In GCE documentation it mentions "When computing sustained use discounts for predefined machine types, Compute Engine gives you the maximum available discount using inferred instances. An inferred instance combines multiple,...

Asked on 11/29/2021 by Shanrui Li

1 answer

WireGuard user authentication

I've read the WireGuard specification, and it looks like WireGuard doesn't natively support any kind of user authentication (e.g. LDAP or something like that). Any client which...

Asked on 11/29/2021 by Aleksandar Pesic

3 answer

AWS "No credentials specified" even when EC2 IAM policy applied

This is an odd issue which we can't find a solution for. On AWS, we are running Microsoft Remote Desktop Services on Windows Server 2019. All servers are joined...

Asked on 11/29/2021

1 answer

"Cannot set device ring parameters: Operation not supported"

I'm trying to change the RX and TX for an HP BL460C server by using ethtool and get the following:ethtool -G eth0 rx 4078 tx 4078Cannot set device ring...

Asked on 11/29/2021 by rahrahruby

1 answer

Update Office without opening an Office application

How do you trigger an Office update without opening an office application? I need this to update Office after an offline install of o365, specifically in instances where Office needs...

Asked on 11/29/2021

2 answer

dnsmasq cache NOERROR with ANSWER: 0, AUTHORITY: 0

I use a public DNS provider ( that blocks some domains. These blocked domains return a response like this when dig-ed:; <<>> DiG 9.16.1-Ubuntu <<>>;; global options: +cmd;;...

Asked on 11/29/2021 by Collin Barrett

1 answer

Unreported 400 Bad Request Errors

The following two curl commands trigger 400 Bad Request errors which don't appear in the ErrorLog and aren't handled by the custom ErrorDocumentcurl localhost -H ";"> 400 Bad Request>...

Asked on 11/29/2021 by resu

0 answer

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