Latest Server related questions

Score: 0
DMARC report with passing O365 DKIM signature being sent by Google server
in flag

The dmarc report values are as follows:

dkim_domain : mydomain.onmicrosoft.com
dkim_result : pass
selector : selector1-mydomain-onmicrosoft-com
header_from : mydomain
spf_domain : mydomain
spf_result : fail
source_ip : 209.85.219.70   (this is a Google mail server)
org_name : google.com    

So, we have a message that was signed by O365, but is being sent by a Google server, and the receiving Google se ...

Score: 0
Choosing Public IP or VPC IP for creating Kubernetes cluster
fj flag

I have 3 compute engines (VMs) from a cloud provider, and I can connect to them using my SSH key and their public IP.
I want to run a Kubernetes cluster (1 master, 2 workers) using kubelet on these machines, and the question arises when I want to address the nodes.
Each machine has a VPC IP in 192.168.x.x and a public one in 183.x.x.x; when advertising the master node and joining workers, which IP should  ...

Score: 1
Mike avatar
How to get DKIM to sign for both, a subdomain and the root domain addresses?
gb flag

I'm using latest versions of DKIM + Postfix on Ubuntu 20.04 I got the DKIM to sign the e-mails [email protected]. However it refuses to sign e-mails that originate from @mydomain.com. Is it possible to sign for both e-mail addresses and if yes, how do I do that?

Below is my opendkim.conf

# This is a basic configuration that can easily be adapted to suit a standard
# installation. For more ad ...
Score: 0
realShadow avatar
NFS4 works on one server but not the other
in flag

I have 2 VMs, both running debian buster. One is a test VM, the other my production file server. On both I installed the nfs server package through "apt install". I created a share on the test VM called nfs under /mnt/nfs. This folder is owned by nobody:nogroup. In my exports file I have the following content:

/mnt/nfs *(rw,sync,no_subtree_check,no_root_squash,no_all_squash,insecure)

There is no  ...

Score: 1
Asmodean avatar
Port forwarding with wireguard
us flag

Using applications like qbittorrent and airdcpp to share files. They all need some ports to be forwarded in order to be "connectable".

In the home connection I would go into the router settings 192.168.1.1 and then forward the ports, ex. 56000 to my PC's local ip address: 192.168.1.124. And the services would work alright.

Later set up wireguard on a Linode VPS wishing I can vpn into it and and mask  ...

Score: 0
Smock avatar
Is there a way to remotely see the progress of windows updates
gg flag

We have to roll out upgrades from earlier versions of w10 to 20H2 in our environment and WSUS is generally being WSUS. It's difficult to tell windows update to do something on demand. Our GP is set up as best as we can and does the job, but it can be difficult to get a picture of what is happening at any exact moment.

I've discovered quite a few powershell tips to get a better picture of what's g ...

Score: 0
tio78 avatar
Windows clients slow to open SAMBA on Debian 10 (when using short hostname)
cn flag

I'm having a strange problem for windows 8 and 2012R2 clients, which use a Debian 10 samba server in ADS mode. The issue is slow initial directory listing of the server, only when using the server's short name i.e. "\server"

If clients use \server.mydomain.example or \Server_IP_Address connections are very fast. If they use \server the connection takes between 1 and 30 seconds to show the initial ...

Score: 0
Nginx stream with upstream has same server but different port, get wired result
pe flag
stream {
    map $ssl_preread_server_name $backend_name {
        home-s1.frp.xxx.com frp-s1;
        home-s2.frp.xxx.com frp-s2;
        default web;
    }

    upstream web {
        server 127.0.0.1:8443;
    }

    upstream frp-s1 {
        server internal-frps-s1.xxx.com:5011;
    }

    upstream frp-s2 {
        server internal-frps-s2.xxx.com:5014;
    }

    server {
        listen 443 reuseport;
 ...
Score: 0
Saumya Kanta Swain avatar
Configuring BGP with local-preference set with FRRouting
vc flag

I want to configure a multi-homed BGP router with preference for one ISP. My actual setup will only receive the default routes and not the full BGP feed from the upstream ISPs. But in this test setup I have a network setup as following and my aim is to prefer R4 over R2 for traffic from R1. Network setup

The 4 routers are FRR 7.3.1 images from GNS3 market place. They are configured identically. The config is same fo ...

Score: 0
Eduardo Lucio avatar
OpenShift/OKD cluster - Use with external/outside domain
in flag

I have an OpenShift/OKD cluster already up and running and using the following domain...

certain.domain

Within this domain I have these (among others) features working...

console-openshift-console.apps.okdsubdom.certain.domain
oauth-openshift.apps.okdsubdom.certain.domain
prometheus-k8s-openshift-monitoring.apps.okdsubdom.certain.domain
grafana-openshift-monitoring.apps.okdsubdom.certain.domain
a ...
Score: 2
Steven Seagul avatar
Stop NGINX from locally caching a directory
nc flag

So, the issue I am currently facing is that NGINX on my system keeps caching huge video files in memory when a HTTP request is made. This is causing NGINX to be using 20GB+ of memory and me having to run sync; echo 1 > /proc/sys/vm/drop_caches (clearing pagecache) frequently to stop constant swapping. I have provided below the relevant configuration.

nginx.conf

location /protected/ {
    internal;
  ...
Score: 0
uday avatar
How to resolve unknown status pods in aks?
ke flag

When I check the insights tab controllers option, saw some of the default pods are showing status as unknown, how to know why the status is showing like that?

aks snap

Score: 1
Home Plus avatar
Postfix not receiving external mail and local mail stuck in queue
ar flag

I have an issue that I can't find solution for. My Postfix server crashed, I re-installed it, but now, and no matter what I do, I can't get it to forward incoming emails to its designated domain. I can send among local users. This is from main.cf:

When I try inet_interfaces = all, it stops receiving all together, and when put back to Localhost, they come back in but get stuck in queue with connec ...

Score: 0
mav1c avatar
How to free space in lvm pool?
id flag

I have a newly built CEntOS 7 server with a single large lvm pool we plan to use for VM installations. When I tried to create a new VM instance using ssm, I got errors saying there's no space. So I looked and sure enough the pool is showing 0 free space. How to I open up this space?

ssm list & df

Score: 0
Keep track of which parts of the HDD are being accessed?
us flag

I'm diagnosing a weird issue and I need to know which sectors of my hard drive are being read and when. Is there a way to make kernel log each access of a block device and ideally, report the offset over UDP?

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