Can't open couchdb - couchdb

I am a beginner to CouchDB, I need to do a school assignment with it, but now it crashed on my computer. My system is mac os, when I open the couchDB application, it keeps popping new admin windows(http://127.0.0.1:5984/_utils/#login?urlback=), but all of them are failed to connect.
When I try:
curl -X PUT http://127.0.0.1:5984
it returns
curl: (7) Failed to connect to 127.0.0.1 port 5984: Connection refused
It worked well on my computer before, seems after I tried to setup a remote node, it crashed.
What should I do to fix it?

Related

Why isn't npm start not building and connecting to the dev server?

I'm trying to work my way through a React course and I am consistently running into the same issue. Every time I use npm start after I've created the app I get this error in the browser: This site can’t be reached. Localhost took too long to respond or I get the error that it refused to connect.
Here's everything I've tried to remedy the issue:
I'm not getting any errors in VScode's built in terminal or my laptop's terminal, it says everything compiled successfully.
I've tried opening the dev server on multiple different browsers: Brave, Chrome, Firefox.
I've created multiple different projects & all are having the same issue.
I've changed the port the dev server opens up on in VScode.
I've cleared my node cache.
I've uninstalled & reinstalled node & npm.
I've restarted my laptop multiple times
I've uninstalled & reinstalled VScode.
I even went so far as to completely factory reset my laptop & reinstall everything. It fixed the problem for a couple of days but now I'm back at square one dealing with the same issue.
My laptop is a 2017 MBP 13 running macOS Monterey. Any help / advice would be greatly appreciated.
curl -v "http://localhost:3000"
Trying 127.0.0.1:3000...
* Trying ::1:3000...
* connect to ::1 port 3000 failed: Connection refused
* connect to 127.0.0.1 port 3000 failed: Operation timed out
* Failed to connect to localhost port 3000 after 25918 ms: Operation timed out
* Closing connection 0
curl: (28) Failed to connect to localhost port 3000 after 25918 ms: Operation timed out
```
I finally figured out the solution. I had to turn off my VPN for the npm start command to work.

Python mysql connector: Can't connect from laptop to a remote DB, but can successfully from another laptop

On Py3.7, I'm running:
>>> from mysql import connector as sql
>>> db_connection = sql.connect(host='blablasmth.rds.amazonaws.com', database='mydbname', user='me', password='abcd1234')
The DB requires an openVPN connection, so 1st I connect to the VPN, then run these lines.
Now, on my laptop (Py3.7.3), I connect successfully.
On my other laptop (Py3.7.1), with the same lines exactly (^C-^V), I get either
A connection attempt failed because the connected party did not properly respond ... timeout ... 10060
or (after installing pip install mysql-connector-python with some desparate hope)
mysql.connector.errors.DatabaseError: 2003 (HY000): Can't connect to MySQL server on 'blablasmth.rds.amazonaws.com' (10060)
I've tried it a number of times over a few days, and this behaviour is consistent. My VPN connection looks fine in both machines (OpenVPN symbol is green).
I've also tried to disable the firewall on my failing machine, with no different result.
Last, I've installed mysql-workbench. Again, can't connect. Switching machine, connect successfully.
Any Ideas? please...

cannot connect to gitlab locally / browser (Virtual Box linux works just fine)

So I've had this problem before at work, then it was solved by getting a new computer (it was old).
Yesterday everything worked fine, this morning I try to surf to the company gitlab and couldn't connect. When I try to clone a repository to my local system I get a port 22: Connection timed out and when I try it with https I get port 443: Timed out
On chrome I get "ERR_CONNECTION_TIMED_OUT"
Edge tells me "There was a temporary DNS error. Try refreshing the page.
Error Code: INET_E_RESOURCE_NOT_FOUND"
I've pinged the ip and I get "Request timed out"
When I run $ ssh -vT git#github.com it gives me a bunch of lines but it ends in
debug1: No more authentication methods to try.
Permission denied (publickey).
If I run $ ssh -vT git#gitlab.company.com I just get
OpenSSH_7.5p1, OpenSSL 1.0.2k 26 Jan 2017
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Connecting to gitlab.company.com [10.1.10.21] port 22.
cddebug1: connect to address 10.1.10.21 port 22: Connection timed out
ssh: connect to host gitlab.company.com port 22: Connection timed out
I've regenerated SSH keys and put them in https://gitlab.com/profile/keys (that I can acces, its just the gitlab.company.com that doesn't work).
I talked to IT at the company and they said nothing has changed, no new firewalls, no nothing.
I did install the Chrome Test Server to start making PWA but removed it after I discovered I had this gitlab problem again thinking it might have to do something with it. I rebooted my pc after the uninstall.
What more can I do? I'm on Windows 10 and run Ubuntu in Oracle VM virtual box (where I can connect just fine).
Thanks.
EDIT:
I've done a system restore to a couple of days ago, didn't help, I logged in a different windows account, still couldn't connect, I've changed network cable (using a coworker his "internet") still doesn't work. There must be something that I'm doing locally that messed things up.

Error connecting to my redis server from my code

io.adapter(redis({ host: config.redisHost, port: config.redisPort }));
Both the confif.redisHost and config.redisPort are the correct values, but when I try to connect from my code I get the error -
'Error: Redis connection to 104.xxx.xx.xxx:6379 failed - connect ECONNREFUSED 104.xxx.xx.xxx:6379'
In redis.conf I've changed the bind to 0.0.0.0 as well as removing it completely and I've also tried setting protected mode to off just to try and get the connection working.
The IP and port are definitely, correct. Does anyone know why I might not be able to access the server from my code? My code is just being ran on my local machine and the redis server is being ran on a digital ocean ubuntu 14.04 machine. The status of the server is definitely running and I can access the redis-cli from the machine itself.
For some reason, it wasn't using redis.conf when I tried starting the server, I had to manually tell it to use it when starting up, now it's working.

Getting "The connection to 'localhost' failed" error when trying to browse localhost site on IIS

My localhost IIS sites recently stopped working and I can't figure out why. If I try and browse to http://localhost after a while I get the error Oops! Google Chrome could not connect to localhost. If I open Fiddler and try again I get a 502 error that states System.Net.Sockets.SocketException A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 127.0.0.1:80
I've tried using netstat -a -b to see if any other applications are blocking port 80, but there doesn't appear to be anything obvious.
I've disabled proxy servers and that doesn't have any affect.
As a last resort I even tried re-installing IIS
Everything has been working fine and I can't think of any configuration changes that would've stopped localhost from working. Any ideas?

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