Latest Server related questions

Score: 0
ssh-keygen fails when specifying passphrase
ru flag

Running CentOS8 with FIPS mode enabled. openssh-8.0p1-8.el8.x86_64 installed

# ssh-keygen -t ecdsa -b 256 -m pem
Generating public/private ecdsa key pair.
Enter file in which to save the key (/home/eng3/.ssh/id_ecdsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Saving key "/home/eng3/.ssh/id_ecdsa" failed: error in libcrypto

If I do not specify a passphrase, the operatio ...

Score: 0
Abhi avatar
Squid proxy server returning error
ne flag

I have designed a topology which has an external proxy server (192.168.239.152) and a Mikrotik Router (192.168.239.151). The MikroTik router connected with a LAN and enables internet connection to LAN PCs. The LAN PCs has IP from the block 192.168.1.0/24.

I want traffic (HTTP, HTTPS) from LAN PCs to go through the proxy server, so that I don't need to configure Browser manually to use proxy setti ...

Score: 12
John avatar
Carbon neutral data center?
in flag

I stumbled upon https://www.climateneutraldatacentre.net/ after thinking about my company's carbon footprint.

I know this is a very complex topic, and not just as trivial as where the energy comes from for the data-centers, but I cannot find any data-centers that are claiming any carbon offsetting or neutrality.

Has anyone seen an environmentally friendly data-center?

Score: 0
kittygirl avatar
How to install `aide` without `aide-common` in debian?
us flag

Per this post,

Newer versions of Ubuntu (including 14.04) come with two packages for AIDE:

aide, with the aide command and manual page, and little else

aide-common, with a wrapper around that command, configuration files with rules, and cron configuration files that will cause AIDE to be run nightly 

If your AIDE is bundled like this, attempts to run the aide command directly will fail with the message ...

Score: 0
Nobby6 avatar
Multiple MRTG targets in one
us flag

What I have is 2 scripts to get values I'm trying to incorporate them into 1 graph

I can successfully have them in 1 graph by totalling them, as below, but I'm trying to have them separate, like the first value & second value:community, where the first is akin to input and second output (according to manual) but this wont work, anyone ever done something like this before?

(and before you ask, as ...

Score: 0
Mahsa avatar
Amavis and Spamassassin error with '.pre' files (using iRedMail)
fr flag

I installed iRedMail which would install amavis and spamassassin. When I test sending and receiving email, I have an error in the /var/log/mail.log, I see this line of error:

postfix/amavis/smtp[14582]: connect to 127.0.0.1[127.0.0.1]:10026: Connection refused

when I run this line: $sudo amavisd-new debug I see at the end of the output:

files are in the config directory.\nAt a minimum, v320.pre l ...

Score: 0
thurlimann avatar
Tunnel packets get filtered or stripped off, also certain packets like BGP
us flag

I was trying to figure this out for quite some while now. So I am trying my luck here now...

I have some VMs that should communicate with non VMs. There are 2 use cases.

The first are BareMetal Machines on the subnet that the external router is sitting on. The second are machines outside and behind the gateway pointed to by the external router.

So we have these two connection paths:

VM --> external rou ...

Score: 1
pooya hejabi avatar
DAG: Configuration refresh failed with the following error: the metadata failed
vn flag

I have two mailbox servers in exchange 2019 and I have installed DAG . I have set the static IP address for Dag and the process is ok ( Active and Passive Databases ) . But after failing one server and moving the Databases to other server , I get an error in server manager on both of my server and also I can not ping the DAG IP , it is time out .

The problem is :

DAG : Configuration refresh failed wit ...

Score: 0
xenrelay avatar
Kubernetes managing many distinct UDP servers on GKE
au flag

I'm trying to set up a system that can automatically spin up and down video game servers as docker images. In this case, factoriotools/factorio-docker. Each game is a different, distinct single-pod deployment of that container, and therefore (in the simplified case) needs its own IP address that can listen on a specific UDP port. Load balancers are redundant and irrelevant, and Cloud NAT doesn't ap ...

Score: 0
koyamashinji avatar
Why is a host sever location displayed differently?
ie flag

I am very new to this field, and would like to get an explanation on the mechanism of the below.

When I check the location of a host server, sometimes they show the location differently.
For example, let's say I check the location of the server for "https://serverfault.com/", they show three different locations - Quebec, California and Chicago.

I would like to know the mechanism behind why this hap ...

Score: 0
Connection Two sites
us flag

My office is moving and the big concern is about networking. The move will take two months but they need both sides to be operational during that time. The big challenge is our old PBX. Do they need phone connectivity in both offices for these couple of months? If we get a temporary internet provider for the new site can we connect the two modems with a VPN? Will that connection make the PBX work in the ...

Score: 0
gstlouis avatar
self signed certificate vs a certificat authority with email
bo flag

I use a self signed certificate with my mail server. I use dovecot and postfix startTLS. I also have a DKIM setup for digital signatures and everything is working. However, when sending mail to hotmail or outlook it often if not always falls into the client spam unless they request to trust.

I wouldn't make any difference if I would pay to have a signed certificate authority would it? I mean  ...

Score: -1
spargle avatar
I want to build a virtual web server from python. Where do I start?
in flag

I use Python, and I'm familiar with its capabilities and syntax. I want to create a web server that can receive and send JSON data packets. Sorry about the short question.

Score: 0
Alexander George avatar
Can't SSH into macOS machine until I VNC
sz flag

I have several M1 Mac Minis running on MacStadium. They are all remotely manageable, so I can SSH and VNC into them with the auth I was given.

From time to time, the following happens:

  1. I suddenly notice I cannot SSH into a machine anymore, but I have services running on it, so I know it is up and running.
  2. I VNC into the machine, and I’m greeted with the macOS screen requesting my password.
  3. I i ...
Score: 0
Sergio D avatar
Postfix started to fail, cant send messages, but can log
pt flag

First of all, the server was working until now, and i don't even know why this started to fail, but since several hours, i cannot send messages between users,

i bet it's not a fail in the certificates, cause it was working yesterday with them and didn't changed

this is what i see on client side

image1

"An error occurred while sending mail. The mail server responded: 5.7.0 Must issue a STARTTLS command f ...

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