Latest Server related questions

Score: 0
K8s cluster on-premises and HAProxy/F5 load balancer
za flag

Cluster information:

Kubernetes version: 1.23.4

Cloud being used: bare-metal

Installation method: kubeadm

Host OS: Debian 11.2

CNI and version: docker.io/calico/cni:v3.22.0

CRI and version: containerd://1.4.13

Hi!

I need some help with a small k8s cluster. Our setup has 3 control-plane nodes, 2 worker nodes and an HAProxy server. We want to publish services using ingress-nginx and LoadBalancer met ...

Score: 0
How to set python3 command to work in aws linux 2?
ng flag

I followed first approach in this link to install python 3.8

Steps I followed:

 sudo yum install -y amazon-linux-extras
 amazon-linux-extras | grep -i python
sudo amazon-linux-extras enable python3.8
sudo yum install python3.8

After that, python3.8 command is working.

[ec2-user@amazonlinux ~]$ python3.8 --version
Python 3.8.5

But not python3.

[ec2-user@amazonlinux ~]$ python3 --version
-bash: pytho ...
Score: 1
repi avatar
cannot remove pv from lvm config when disk unavailable
ng flag

I have a vm with 2 disk and 2 VG, on of the disk is a PV (no partition). OS is CentOS 7. Now the disk is unavailable. The PVS displays:

# pvs
  WARNING: Device for PV L9Anor-qlzF-mTT7-Rxx0-Ovig-hMQI-OkupZL not found or rejected by a filter.
  WARNING: Device for PV L9Anor-qlzF-mTT7-Rxx0-Ovig-hMQI-OkupZL not found or rejected by a filter.
  WARNING: Device for PV L9Anor-qlzF-mTT7-Rxx0-Ovig-hMQI-Okup ...
Score: 0
ISC DHCP for relay agents
kg flag

I would like to configure DHCP server for my networks, but in the same time, i don't want to setup dhcp server on the network where the server itself is.

DHCPD insist to configure subnet declaration for the network of the ens192 interface (which i really dont want to as there is another DHCP server (on Windows Server)).

Not configured to listen on any interfaces!

Is there any way to configure only those  ...

Score: 0
How to connect two adapters to aws linux 2 with virtulabox?
ng flag

I followed this video link and able to use amazon linux 2 with virtualbox.

But this video shows only one network adapter(bridged).

I connected two network adapters(NAT and Host-Only) but only the first adapter is visible.

I didn't configure through command line, Instead I added the adapters in the vm configuration.

adapter 2

Second one is not detected.

As you can see eth1 is not enabled.

ip a s -- output ...

Score: 0
Cross region backup (block & boot volumes) naming convention - Oracle OCI
cn flag

I have 4 instances in ap-mumbai-1 region with 1 block volume attached to each of them. I have configured a cross region backup policy to ship the backups to ap-osaka-1 region.

But in ap-osaka-1 region, I am unable to identify the source block volumes as the backups are named like - " Auto-backup for 2022-04-13 18:30:00 via policy: CrossRegionPolicy-Osaka_from_AP_MUMBAI_1 "

When I open the details I  ...

Score: 0
ab_tech_sp avatar
Routing traffic from a bridge to a specific interface
br flag

Fundamental question about routing in Ubuntu 20.04.

I have a baremetal setup in Hetzner which has an 11.22.33.44/32 IPV4 address along with 2a01:db8:30/64 subnet allocated to it.

enp7s0 is the physical interface which has 11.22.33.44/32 address.

I also have the baremetal server connected to a vSwitch that has a Public subnet 2a01:1111:2222:3333::/64 allocated to it. The gateway for this subnet is 2a0 ...

Score: 0
jbean223 avatar
Writing Gentoo ebuilds: how to correctly add libraries using flag-o-matic eclass
cn flag

I'm trying to write an ebuild (I'm very new to writing ebuilds) and I need to add the library -ltinfo to link against.

My ebuild looks like:

EAPI=8
inherit flag-o-matic
...
src_compile() {
    append-libs -ltinfo
    default
}

Everything else is pretty much default, but in the emerge log I don't see -ltinfo included as a library and it fails to compile.

Score: 0
Certificate validation issue with subdomains of subdomains
cn flag

I have a current, production certificate with a wildcard common-name hosted in Amazon Certificate Manager (ACM). I've added a CNAME with a subdomain of a subdomain (like ....) to our Route53 zone that points to our load-balancer (ALB). However, Chrome complains with

[SSL_ERROR_BAD_CERT_DOMAIN] "The certificate is only valid for *..." (domain intentionally sanitized).

What could the problem be? Am I  ...

Score: 1
Cos avatar
Postfix - Troubleshooting connection timeouts for all servers except one
lr flag
Cos

I have inherited a postfix server running on RedHat. It is an undocumented build, but critical for business operations (Don't we all love those?)

It has developed issues with delayed and backlogged mail delivery. The issues were first reported a few weeks ago, but could go back an indefinite amount of time.

My *nix experience is rusty, but I have been able to poke around the system enough to determi ...

Score: 0
Ben Thul avatar
Mirrored volume in Windows performance - Storage Spaces vs diskpart performance
cn flag

I'm currently exploring using Storage Spaces to create a mirrored volume. In benchmarking it against a mirrored volume created with diskpart, I notice that I'm getting twice the throughput on reads. I'm speculating that the diskpart volume is able to make requests of both drives in the mirror in parallel. Is there a way to get that behavior out of the Storage Spaces mirrored volume?

Score: 0
Bind DDNS change receiving `update failed: NOTAUTH`, how to fix that authorization issue?
cn flag

I have the following zone definition:

zone "madetoorder.software" {
  type master;
  file "/var/lib/bind/example.com.zone";
  allow-transfer { trusted-servers; };
  check-names warn;
  update-policy {
    grant local-ddns zonesub any;
    grant letsencrypt_wildcard. name _acme-challenge.example.com. txt;
  };
  max-journal-size 2M;
};

As shown, it is expected to allow me to add and remove sub-domains  ...

Score: 0
Kevin wang avatar
How to reverse proxy to a container then through domain name to access the site
ma flag

I set up a WordPress site with docker composer via Portainer. The site can access by the IP address. How can I set reverses proxy and access the site by domain? I tried to put the proxy block in the host server, and the WordPress container( it comes with Apache) both did not work, the error log did not show any useful information.

server {
    listen 80;
    server_name test.bcsystems.nz;

    loca ...

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