Failed to start ngnix.service: Unit ngnix.service not found - linux

I have installed ngnix on ubuntu 20.04 . But when i am giving command sudo systemctl start ngnix . I am facing an error
Failed to start ngnix.service: Unit ngnix.service not found.
Please help me out through this problem.

It's called nginx, not ngnix. So you need to start it as sudo systemctl start nginx (note the spelling).

Related

command systemctl start libvirtd.service openstack-nova-compute.service doesn't finished

I am trying to install opnenstack-nova and after i confing /etc/nova/nova.conf and run command:
systemctl start libvirtd.service openstack-nova-compute.service
it doesn't finish and show anything.
how to solve it???
image

Apache config doen't recognize my enviroment variables

When I try to start the apache web server it throws an exception that says that it doesn't recognize the variables in envvars
I included an image for you to see, I believe my envvars file is fine.
sorry if this is a newbie's question but I am a newbie in apache.
this is the image, top part is the exception, bottom part is the envvars file
Could you check if "/var/run/apache2" folder is not missing?
If yes, you can try creating the folder:
mkdir /var/run/apache2
After that, please run the following command:
source /etc/apache2/envvars
Lastly, you can restart your apache:
sudo systemctl stop apache2
sudo systemctl start apache2
or
sudo systemctl restart apache2

jupyterlab 500 error from dataproc cluster

i have been trying to open jupyterlab from my dataproc cluster. i had been working on it last week and there seemed to be some issue with the kernel. so i signed out of jupyterlab and stopped the cluster. then i tried to open jupyterlab again from the link under web interfaces in cluster detail. however, since last wednesday, everytime i try this i get a 500 or 502 error. the error says "500. That's an error. That's all we know."
i'm not sure what to do here. i googled the issue and couldn't find anything that would help.
You can SSH into the master node with gcloud compute ssh <cluster-name>-m, then check the status of the following 3 services:
systemctl status jupyter
systemctl status knox
systemctl status google-dataproc-component-gateway
Restart them if needed:
sudo systemctl restart jupyter
sudo systemctl restart knox
sudo systemctl restart google-dataproc-component-gateway
Also, check the Knox log at /var/log/knox/gateway.log.

Failed to start couchbase-server.service: Unit couchbase-server.service is masked

couchbase service stopped , so i started it manually by exec following command:
sudo service couchbase-server start and got response
Failed to start couchbase-server.service: Unit couchbase-server.service is masked.
I have ubuntu 16.04LTS and couchbase 5.1
you can unmask your service
sudo systemctl unmask couchbase-server
sudo systemctl start couchbase-server
Go to $CouchbaseHome and run following command to start and stop manually
Start
 ./bin/couchbase-server \-- -noinput -detached
Shutdown
./bin/couchbase-server -k

How to solve `neo4j: command not found` error

I followed the steps on debian - stable installation instructions verbatim.
However, when I run the last step I get:
cammil#cammil-desktop:~$ neo4j start
neo4j: command not found
How do I resolve this?
You can start the neo4j server with:
service neo4j-service start
But, if you are able to access localhost:7474, then the server has already been started. You can check the status with:
service neo4j-service status
Or if you want to stop it:
service neo4j-service stop
You probably don't have . in your PATH, so you need to do ./neo4j start.
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