Latest Server related questions

Score: 0
Alan avatar
How to improve network performance of a congested GRE tunnel?
in flag

We lease IPV4 address space (subnets) from a couple ISPs. The subnets are routed to our server farm through GRE tunnels. Our server farm services the inbound TCP connections. We do not control the GRE termination setup at the ISP end. We're not running a load balancer for the proprietary services.

The problem is that there is too much traffic trying to come over the GRE tunnels. Packet loss rates ...

Score: 0
Rohini avatar
Does bridge networking mode in ECS limit number of tasks on container instance
gr flag

I have an EC2 registered to ECS cluster on which tasks can run. Originally I chose the awsvpc network mode so every task(container) had it's own ENI(IP). But I ran into limitation at https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-eni.html#AvailableIpPerENI

ENI Limit is 3 for m5.large instance type

So I changed the network mode to bridge Will using the bridge network limit the tasks to 10 be ...

Score: 2
webcoder.co.uk avatar
Google G Suite DMARC + SPF + DKIM for user domain aliases fail Google Admin Toolbox CheckMX
cn flag

I have set up the above in my Google's old G-Suite account for a User Domain Alias but am still getting two warning messages:

https://webcoder.co.uk

There were some non-critical problems detected with the configuration of this domain.
Depending on how you configured your mail-flow, this could be a source of mail delivery issues. 

DKIM is not set up. warning [this one always appears in yellow]

TXT loo ...
Score: 0
Certificate for Gitlab-Server is invalid für Subject Alternative Name
it flag

My company has a certificate for https://data.ddl.at, which has, among others, a SAN (Subject Alternative Name) for gitlab.ddl.at. This Gitlab-Server is internal, and the domain name is only resolved by our internal DNS-Server. For reference, there is also the SAN https://sicher.ddl.at, which is public, and is valid in a browser.

I have configured this certificate on the Gitlab-Server, and when I go ...

Score: -1
Kashyap Patel avatar
AWS-EC2 Ubuntu How to force root user UBUNTU to login using both Key and Password
gb flag

I am working on the instance of ubuntu with latest version

I want to setup a Root user ubuntu to login Forcefully using both key and password

So where i can do this configuration

I tried SSHD_CONFIG using PermitRootLogin & PasswordAuthentication Yes But didnt worked

Can please guide me someone. is this something needs to be done on the instance level

Score: 0
Ravi avatar
Slow Docker Container on GCP running Python AI/ML Workloads
cn flag

Looking for advice on how to diagnose high system/kernel space load.

Setup

  • Docker CE on CentOS 7 (no SELinux)
  • Containerized Python based AI/ML workload.
  • Python multi-processing is in use with ((n/2)-2) pool workers
  • n => cpu/vcpu cores (1 hyper-thread)

General Issue

  • On Bare metal container from our docker image runs as expected.
  • On GCP container based on same image runs slow, 3-4 times slow.
Score: 1
How to clear dns cache for GKE pool from metadata.google.internal?
id flag

I have a problem where dns entry for a external domain broke. The nature of the problem at the time is unknown.

That domain got queried from kubernetes cluster pod in the Google Kubernetes Engine while the entry was broken. The problem persists (incident happened over 2 months ago) when querying that domain from the cluster.

The cluster dns resolver uses metadata.google.internal for dns resolving a ...

Score: 0
Alien Life Form avatar
Aliasing a user (id) in CentOS7/8
ru flag

I am in the process of replacing some apache instances with nginx (for performance, mostly). For some time I will need to switch from one to the other. The packagers, in their infinite wisdom, decided to use diiferent user/group IDs for the two servers (nginx/nginx and apache/apache: probably using the same for both - httpd/httpd, say - would have been too mundane).

That's a royal PITA (because a ...

Score: 0
iTeY avatar
Can't expand oVirt VM disk to new size with neither LVM or resize2fs
se flag

I have a oVirt server with a VM, the VM was created with a 20GB disk but that quickly ran out of space so I added another 20GB to it and now I'm trying to expand the disk.

I have done this once before on an old VM and then I ran the following commands:

$ sudo lvm
lvm> lvextend -l +100%FREE /dev/mapper/ubuntu--vg-ubuntu--lv
  Size of logical volume ubuntu-vg/ubuntu-lv changed from 4.00 GiB (1024 ext ...
Score: 0
Scope down the access permissions to particular groups and user attributes of an Azure App (using Graph API)
bd flag

We are going to sync our users to a third party via their Azure app (using Graph API). The Azure app requests permissions for Group.Read.All, User.Read.All. Although they promise to query only selected groups and user attributes but we want to make sure the app has access to the particular groups and users attributes only. For example, allow the app to read all users from the group DC1 and DC2 with 4 at ...

Score: 0
raphael.oester avatar
Can't connect to static VPN from docker compose
in flag

I'm trying to create a symetric VPN server with openvpn in a docker-compose. Here it is:

---
version: "3"
services:
  vpn: 
    image: whitebox/vpn:0.2
    networks: 
      - standard
    tty: true
    ports: 
      - "1194:1194/udp"
    volumes:
      - ./server:/home/server:ro
      - ./static.key:/home/static.key:ro
    cap_add:
      - NET_ADMIN
      - SYS_MODULE
    restart: always
    networ ...
Score: 2
QUIQUELHAPPY avatar
Windows Server Backup creating absolute backups instead of incremental to network share
id flag

I created a daily backup to a network share and as the backup setup specifies, it should be incremental, but it has been transfering the whole disk to the share instead of actually creating incremental backups. This may be a possible duplicate of Windows Server Backup, drive is doing full backup instead of incremental no response was given to this problem in that thread.

I can only imagine I need to en ...

Score: 0
David Yang avatar
Reduced ceph storage pool size
ru flag

Currently running a 7-node Ceph cluster, used as file system storage.

Two independent nodes are used to run the mon+mgr+mds service, the other 5 nodes are used as storage nodes and one of the storage nodes is mixed with a set of mon+mgr+mds services.

node1: mon+mgr+mds
node2: mon+mgr+mds
osd1: mon+mgr+mds+hdd*12 ssd*1
osd2: hdd*12 ssd*1
osd3: hdd*12 ssd*1
osd4: hdd*12 ssd*1
osd5: hdd*12 ssd*1

ceph versio ...

Score: 1
ranji avatar
count.index for dictionary in Ansible
cn flag

Is it possible to auto generate the vm10,vm11,vm12 in the below script (as count.index used in terraform) ? I would like to pass/define name "vm" and should be able to deploy 3 vm's with the different names vm10, vm11 and vm12. Please suggest a way, Thanks

---
- hosts: Target                         
  vars:
    machines:                  
      v10:
        mem: 1024
        vcpu: 1
      v11:
     ...

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