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How can I start PostgreSQL server on Mac OS X?
...postgres status?
Are there any error messages in the server.log?
Make sure tcp localhost connections are enabled in pg_hba.conf:
# IPv4 local connections:
host all all 127.0.0.1/32 trust
Check the listen_addresses and port in postgresql.conf:
egrep 'listen|port' /usr/local/var/postgres/...
How do I get Flask to run on port 80?
... i.e port=5000 then just in your terminal run this command:
fuser -k 5000/tcp
and then run:
python app.py
If you want to run on a specified port, e.g. if you want to run on port=80, in your main file just mention this:
if __name__ == '__main__':
app.run(host='0.0.0.0', port=80)
...
Bootstrap: How do I identify the Bootstrap version?
...
METHOD 1
In Package.json
"dependencies": {
// ...
"bootstrap": "4.1.3"
// ...
}
METHOD 2
Open node_modules folder and under that
Search and open bootstrap folder
Now you'll be able to see version number in the following files
p...
ls command: how can I get a recursive full-path listing, one line per file?
...
And to filter by extension: find "$PWD" -type f | grep '\.json$'
– Killroy
Jan 15 '19 at 14:55
2
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How do I use a custom Serializer with Jackson?
I have two Java classes that I want to serialize to JSON using Jackson:
11 Answers
11
...
How to turn on/off ReactJS 'development mode'?
...bpack config like so:
new webpack.DefinePlugin({
"process.env.NODE_ENV": JSON.stringify("production")
})
Browserify
Use the Envify transform and run your browserify build step with NODE_ENV=production ("set NODE_ENV=production" on Windows)
Result
This will produce output bundles that has all inst...
how to find host name from IP with out login to the host
...ease exists for a client, doesn't mean it's still being used.
NetBIOS for TCP/IP (NBT) was used for decades to perform name resolution, but has since been replaced by LLMNR for name resolution (part of zeroconf on Windows). This legacy system can still be queried with the nbtstat (Windows) or nmblo...
Node.js app can't run on port 80 even though there's no other process blocking the port
...our application's port (>1024) using
iptables -t nat -I PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 3000
This will work if your application is running on port 3000.
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When should I use ugettext_lazy?
...({'name': ugettext_lazy('Client'), 'result': data})
return HttpResponse(json.dumps(lst), content_type='application/json')
would fail because very last line would try serialize lst object into JSON and instead of a string for "client" it would have a proxy object. The proxy object is not seriali...
互联网健身的火爆：技术驱动是内因 资本只是点缀 - 资讯 - 清泛网 - 专注C/...
...互联网健身在出现的那一霎那便足以让人们瞩目。然而，和那些被资本关注过的行业不同，互联网健身的发展似乎更加稳健。
互联网健身的出现并不是偶然，正如国民对于健康的重视一样是一个潜移默化、热度持续上升的过程...