Neven Jacmenović guycalledseven

MongoDB Dates

TLDR;

When working with dates in MongoDB, you have to be extra careful because: MongoDB by default stores date & time in ISODate object which is in UTC/GMT. - without any timezone data appended to it. The idea is - that you convert the date in a correct timezone when you query it and display to the user. If you don't do that - you gonna have bad time. Literally. :) Day of birth should not get converted to local time zone, but should be stored as UTC and used as UTC.

Preface

I started writing this document as a reminder to my self when doing mongo stuff.

Haproxy conditions

Since I keep forgetting them I've put them here.

To form a condition, you can use the following syntax after the rule that it applies to:

<HAProxy action statement> if|unless [!]acl1 <AND|OR|or|'||'> [!]acl2 ...

if - the condition is TRUE if the result of the ACLs is TRUE.

issues experienced

nginx error.log shows permission denied

nginx log in /var/log/nginx/error.log shows intereseting Error 13: Permission denied:

2017/11/14 00:33:30 [crit] 5117#5117: *224 open() "/var/lib/nginx/proxy/3/02/0000000023" failed (13: Permission denied) while reading upstream, client: 93.136.115.2, server: git.domain.tld, request: "GET /css/semantic-2.2.10.min.css HTTP/1.1", upstream: "http://127.0.0.1:3000/css/semantic-2.2.10.min.css", host: "git.domain.tld"

	#!/bin/bash
	#
	# After downloading and running official Cisco Webex uninstaller (Cisco_WebEx_App_Uninstall), there is still a lot of Cisco Webex artifacts left on the system
	# Cisco_WebEx_App_Uninstall.dmg.zip - https://cisco.bravais.com/s/4Kd44oJMbWksbTPQtvpw
	#

	rm -rf "/Users/$USER//Library/Application Support/Google/Chrome/Default/IndexedDB/https_tadawul.webex.com_0.indexeddb.leveldb"
	rm -rf "/Users/$USER//Library/Application Support/Cisco/WebEx Meetings"
	rm -rf "/Users/$USER//Library/WebKit/com.webex.meetingmanager"
	rm -rf "/Users/$USER//Library/Logs/WebexMeetings"

	# used different forum posts/guides to figure this out like:
	# The uninstall script is located at /Library/Parallels/Parallels Service.app/Contents/Resources
	# https://github.com/danijeljw/remparallels/blob/master/remprls.sh
	# https://kb.parallels.com/122461
	# sudo find / -iname "parallels"
	# sudo find / -iname "prl"


	#before uninstalling deactivate your licencse - this won't be possible after uninstall
	prlsrvctl deactivate-license

	<?php
	// by user @mpen - https://stackoverflow.com/a/39986034/528020
	// usage: Lorem::ipsum(4);
	abstract class Lorem {
	public static function ipsum($nparagraphs) {
	$paragraphs = [];
	for($p=0; $p<$nparagraphs; ++$p) {
	$nsentences = random_int(3,8);
	$sentences = [];
	for($s=0; $s<$nsentences; ++$s) {

	defaults delete com.apple.Spotlight userHasMovedWindow
	defaults delete com.apple.Spotlight userHasMovedWindow;defaults delete com.apple.Spotlight windowHeight;killAll Spotlight

	2017-11-06 21:23:27.412 defaults[8180:686296]
	Domain (com.apple.Spotlight) not found.
	Defaults have not been changed.
	2017-11-06 21:23:27.507 defaults[8181:686301]
	Domain (com.apple.Spotlight) not found.
	Defaults have not been changed.

	sudo rm -r /Applications/Wireshark.app
	sudo rm -r /Library/Wireshark
	sudo rm /Library/StartupItems/ChmodBPF
	sudo rm /Library/LaunchDaemons/org.wireshark.ChmodBPF.plist
	sudo rm /Library/Application\ Support/Wireshark/ChmodBPF/ChmodBF
	sudo rm /Library/Application\ Support/Wireshark/ChmodBPF/org.wireshark.ChmodBPF.plist
	sudo dscl . -delete /Groups/access_bpf

	/var/log/nginx/error.log

	```
	2017/11/14 00:33:30 [crit] 5117#5117: *224 open() "/var/lib/nginx/proxy/3/02/0000000023" failed (13: Permission denied) while reading upstream, client: 93.136.115.2, server: git.nivas.hr, request: "GET /css/semantic-2.2.10.min.css HTTP/1.1", upstream: "http://127.0.0.1:3000/css/semantic-2.2.10.min.css", host: "git.nivas.hr"
	```

	```
	ps aux \| grep "nginx: worker process"
	nginx 5117 0.0 0.1 125644 6676 ? S 00:30 0:00 nginx: worker process
	```

	# after appcleaner does his magic, do this

	sudo rm -rf "/Library/Application Support/Paragon Software/"
	sudo rm /Library/LaunchDaemons/com.paragon-software.installer.plist
	sudo rm /Library/LaunchDaemons/com.paragon-software.ntfs.loader.plist
	sudo rm /Library/LaunchDaemons/com.paragon-software.ntfsd.plist
	sudo rm /Library/LaunchAgents/com.paragon-software.ntfs.notification-agent.plist
	sudo rm -rf /Library/Filesystems/ufsd_NTFS.fs/
	sudo rm -rf /Library/PrivilegedHelperTools/com.paragon-software.installer
	sudo rm -rf /Library/Extensions/ufsd_NTFS.kext/