Base64 encoder

sudo killall -HUP mDNSResponder

Mac flush DNS cache

Do you want to connect with me ?

env GOOS=linux GOARCH=amd64 go install

Encode to URL-encoded format

How to export hex result on linux Console ?

There is a simple way to export hex from the file

xxd command helps for us

xxd -p file

ubuntu@instance-20240128-1936:~/go-blog-dbs$ xxd /etc/localtime 
00000000: 545a 6966 3200 0000 0000 0000 0000 0000  TZif2...........
00000010: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000020: 0000 0000 0000 0001 0000 0004 0000 0000  ................
00000030: 0000 5554 4300 545a 6966 3200 0000 0000  ..UTC.TZif2.....
00000040: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000050: 0000 0000 0000 0000 0000 0000 0001 0000  ................
00000060: 0004 0000 0000 0000 5554 4300 0a55 5443  ........UTC..UTC
00000070: 300a                                     0.

Reversing strings

strings are character arrays, first we need to understand it

Js reverse command is easy

var str="asdf";
console.log(str.reverse());

Iptables allow port to input - output

iptables -A INPUT -p tcp --dport 8181 -j ACCEPT
iptables -A OUTPUT -p tcp --dport 8181 -j ACCEPT
iptables --flush

we will se result after run those commands