mvkvl

openssl genrsa -out CAroot.key 2048
openssl req -new -key CAroot.key -out CAroot.csr # CN should be different from the certificates below
openssl req -x509 -days 1825 -key CAroot.key -in CAroot.csr -out CAroot.crt
cat CAroot.crt CAroot.key > CAroot.pem

openssl genrsa -out mongod.key 2048
openssl req -new -key mongod.key -out mongod.csr
openssl x509 -req -days 1825 -in mongod.csr -CA CAroot.pem -CAkey CAroot.key -CAcreateserial -out mongod.crt
cat mongod.crt mongod.key > mongod.pem

mvkvl

//
// run in development console in browser
// (source: https://webapps.stackexchange.com/questions/111680/how-to-find-channel-rss-feed-on-youtube)
//
for (var arrScripts = document.getElementsByTagName('script'), i = 0; i < arrScripts.length; i++) {
    if (arrScripts[i].textContent.indexOf('externalId') != -1) {
        var channelId = arrScripts[i].textContent.match(/\"externalId\"\s*\:\s*\"(.*?)\"/)[1];
        var channelRss = 'https://www.youtube.com/feeds/videos.xml?channel_id=' + channelId;
        var channelTitle = document.title.match(/\(?\d*\)?\s?(.*?)\s\-\sYouTube/)[1];
        console.log('The rss feed of the channel \'' + channelTitle + '\' is:\n' + channelRss);

mvkvl

Moved to git repository: https://github.com/denji/golang-tls

Generate private key (.key)

# Key considerations for algorithm "RSA" ≥ 2048-bit
openssl genrsa -out server.key 2048

# Key considerations for algorithm "ECDSA" ≥ secp384r1
# List ECDSA the supported curves (openssl ecparam -list_curves)

mvkvl

package main

import (
	"fmt"
	"io"
	"log"
	"os"

	"golang.org/x/crypto/ssh/terminal"
)

mvkvl

figlet "I've got something to say"

figlet -f thick "Make Tech ASCIIer"

date | figlet -f basic

mvkvl

/sbin/ip route | awk '/default/ { print $3 }'

mvkvl

A) Replace broken sudoers file with default one (see below):

pkttyagent -p $(echo $$) | pkexec cp ~/sudoers /etc/sudoers

B) Remove broken sudoers file (in sudoers.d directory):

pkttyagent -p $(echo $$) | pkexec rm /etc/sudoers.d/FILENAME

mvkvl

#
# sets password to 'admin'
#

$ sudo sqlite3 /var/lib/grafana/grafana.db

sqlite> update user set password = '59acf18b94d7eb0694c61e60ce44c110c7a683ac6a8f09580d626f90f4a242000746579358d77dd9e570e83fa24faa88a8a6', salt = 'F3FAxVm33R' where login = 'admin';
sqlite> .exit