Latest Server related questions

Score: -1
user3520155 avatar
Windows Server 2016 is Shutdown automatically
in flag

Hi I have a Windows Server 2016 VM running and it is shutdown automatically after some time, here I don't know how to fix this issue and where is the problem.

Score: 3
Martin Wurm avatar
Docker bridge network shadows IP of SSH client, how to recover gracefully?
cn flag

We're running a RHEL 7 VM with Docker to host a couple of internal services. Last time I ran docker-compose up to spin up a new Docker container, I lost my SSH connection to the server and could also not re-establish it.

A colleague was able to diagnose that the culprit was a new Docker network that was created as part of the execution of the docker-compose command and whose IP range happened to over ...

Score: 1
Juhani  avatar
Postfix from rewriting (smtp_generic_maps) + DKIM
cn flag

We have SMTP server for the application emails what should do following:

  1. change “From” for all emails
  2. sign emails with DKIM

I have set up postfix rewriting with smtp_generic.

The default flow is like that:

  1. Email comes to postfix
  2. OpenDKIM will sign it
  3. smtp_generic_maps will change the header
  4. email will be delivered

The problem: by default setup smtp_generic_maps will overwrite the DKIM header. ...

Score: 0
SSL error from AWS server in us-west-1 to eu-west-1
id flag

Server's in us-west-1 region while tryin to connect https://elasticloadbalancing.eu-west-1.amazonaws.com/ in eu-west-1 region curl: (35) OpenSSL SSL_connect: SSL_ERROR_SYSCALL.

This is happening with all base images of Ubuntu only. If we run this on amazon link, this issue is not happening

ubuntu@-172:~$ curl -I https://elasticloadbalancing.eu-west-1.amazonaws.com/
curl: (35) OpenSSL SSL_connect: SSL_ER ...
Score: 1
Human avatar
How to define a NFS root in a discrete directory tree?
cn flag

I would like to setup a NFS-server for multiple docker containers and I found documentation on the archlinux-wiki. I thought of this project as an useful example to get to know NFS-configuration and it's security details.

I am not sure what the following sentence means and how to do it.

A good security practice is to define a NFS root in a discrete directory tree which will keep users limited to that mo ...

Score: 1
how to load grub with menu in ipxe setup
au flag

I am trying to setup an ipxe environment on a vmware.

I would like to configure the setup with UEFI.

I have setup a ubuntu-server and configured it as pxe-server.

via downloading ipxe, isc-dhcpd, tftp-hpa and ngnix.

The dhcp isc-dhcp.conf looks like

subnet 192.168.101.0 netmask 255.255.255.0 {
 range 192.168.101.50 192.168.101.100;
}

# add the following to /usr/local/etc/dhcpd.conf 
option client-ar ...
Score: 1
Turn off DMARC report for pass
es flag

I would like to receive reports only for DMARC quarantined mail and failures, but I still receive mails for every successful e-mail that has been sent from my server.

Configuration in dns looks like this

v=DMARC1; p=quarantine; rua=mailto:XXXXXXX

Is there any way to stop receiving reports without quarantine ?

Score: 0
CodeNinja avatar
Why do we lose IPSec connections and can't re-establish them?
cn flag

We have tens of IPSec connections between our office and customer sites. At the office we use pfSense V2.4.5 as VPN gateway and placing Ubiquiti Edgerouter X devices with the latest firmware on the customer sites to establish the connection with. The Edgerouter X always establishes the connection as we not always have the possibility to forward ports on the customer network(s). It does this by pin ...

Score: -1
Moudy Hasan avatar
How do I make Google Compute Engine based domain private use only?
kr flag

I've been using a compute-engine to host a website on gcloud. I just can't figure out how to make access to the project private, with a whitelist for pre-approved emails.

Score: -1
Peter VARGA avatar
My Exchange generates "Mailbox full" for recipient's mailbox but it isn't full
cn flag

When I am sending an email to [email protected] then my Exchange Server 2010 [14.01.0438.000] rejects the email with the message that the recipient's mailbox is full.

I contacted the company and they replied to me that everything is OK. I found out that when I send an email through my GMail.com address that it is delivered without any error message. It seems to be indeed my Exchange which is gener ...

Score: 3
nginx denies all requests to a virtual host . requests are coming from a nginx tcp forwarder
gb flag

Summary - need to add whitelist ips to the mysite1.example.com. now when they are added it doesn't work as every request is coming as originated from the load balancer server.

Im working on a setup with a front seating Nginx host with a upstream backend to loadbalance all tcp packets on port 443 to backend servers.

nginx config of Loadbalancer server running nginx - server C is as below

stream {
         ...
Score: 1
Zehke avatar
How to fix SSL_ERROR_NO_CYPHER_OVERLAP for 2 domains on apache with certbot
cn flag

We have two websites running on one apache: www-example1-com, www-example2-com

www-example1-com was the first site to exist, got a lets-encrypt certificate and works fine. www-example2-com is the second site, that also got a lets-encrypt certificate.

www-example1-com works fine. www-example2-com causes an error in Firefox and Chromium SSL_ERROR_NO_CYPHER_OVERLAP in Firefox ERR_SSL_VERSION_OR_CIPHER_ ...

Score: 0
IIS 10 ARR FARM Only Hits Second Server
vn flag

Trying to learn IIS farming on Server 2016 - IIS 10,i'm able to configure farm setup but my ARR only get hits from second server all the time.

Here re my configuration details; Main Server Windows Server 2016 Standart - 192.168.2.15 - IIS 10 - website name is servistest, it only contains one page as index.asp;

<!DOCTYPE html>
<head>
  <meta name="description" content="Webpage descriptio ...
Score: 2
Dan avatar
Nginx how to disable per ip rate limiting
cn flag
Dan

I have a API which connect through private ip of the EC2 server and execute sequence of callbacks. I want disable per ip rate limiting on this scenario. I have tried this method in Nginx documentation.

This does not solved rate limit for issue. Access Log

192.168.192.51 - - [14/Jun/2021:00:09:55 +0530] "POST /project/api/v1/vendor/callback HTTP/1.1" 429 8576 "-" "Java/1.8.0_151" "-" "192.168.13.173" s ...
Score: 1
Jeffrey avatar
How to minimize chances of one's domain being falsely blacklisted (uribl)
ph flag

My side job is to admin my wife's company domain. It's only used as a domain name for Google mail and tools (slides, docs, etc...).

Although she used her domain for email for many years without any issues, we apparently made the mistake of leaving the web part with a parked website. Last week, a Fortune 500 company, our main customer, changed their spam filter and her email are getting blocked. E ...

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