BSN32’s gists

BSN32 / dumpOnlyfilledArea.txt

Last active November 20, 2023 13:09

Get only filled areas image with DD

	Dikte sadece dolu alanı almak için:
	rootfs:

	512Mbyte * 1024Kb *1024 Byte

	Bootloader:

	16Mbyte * 1024Kb *1024 Byte

	== 553648128 bytes

BSN32 / dataclean.txt

Last active November 5, 2023 09:05

Data Cleaning with Linux Tools

	TASK 1 : Get Clean Azire VPN Wireguard Servers Domains
	https://www.azirevpn.com/docs/servers

	```
	#####
	CA Toronto ca-tor.azirevpn.net UDP 1 to 51820
	DK Copenhagen dk-cph.azirevpn.net UDP 1 to 51820
	FI Helsinki fi-hel.azirevpn.net UDP 1 to 51820
	FR Paris fr-par.azirevpn.net UDP 1 to 51820
	DE Frankfurt de-fra.azirevpn.net UDP 1 to 51820

BSN32 / securesshd

Last active October 24, 2023 21:38

sshd secure macs and Hostkeyalgorithms

	macs [email protected],[email protected],[email protected]
	Hostkeyalgorithms [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],ssh-ed25519,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,[email protected],[email protected]

BSN32 / sshscp_to_multiple_hosts.txt

Last active October 11, 2023 11:26

Read IP hosts from ip.txt and execute ssh and scp through them

	# Read IP hosts from ip.txt and iterate through them
	# send "executable" file over ssh and do some stuff

	while IFS= read -r dest; do
	if scp -P8787 -O -oHostKeyAlgorithms=+ssh-rsa executable "root@$dest:/tmp/."; then
	echo "Success fw transfer: $dest"
	fi
	if ssh -n -oHostKeyAlgorithms=+ssh-rsa "root@$dest" -p22 'mv /tmp/executable /root/executable && chmod +x /root/executable && ls -lah /root/executable'; then
	echo "Success: $dest"
	sleep 1

BSN32 / MYSQL

Created September 15, 2023 13:42

	# Default 100 if you access this limit you will be blocked
	SHOW VARIABLES LIKE 'max_connect_errors';
	+--------------------+-------+
	\| Variable_name \| Value \|
	+--------------------+-------+
	\| max_connect_errors \| 100 \|
	+--------------------+-------+
	1 row in set (0.00 sec)

	# increase the limits (think about what you done)

BSN32 / Linux STUN Tools to Characterize NAT Behavior

Created June 26, 2023 10:27

Get information about NAT type and behavior

	sudo apt-get install stun
	sudo stun stun.callwithus.com 0

	# output
	STUN client version 0.97
	running test number 0
	Primary: Independent Mapping, Port Dependent Filter, preserves ports, no hairpin
	Return value is 0x000017

BSN32 / Remote Real-time Wireshark Capture

Last active May 28, 2023 07:37

	## without ssh passwd
	sudo wireshark -k -i <(ssh [email protected] -p 22 tcpdump -s 0 -U -n -w - -i igb3 host 192.168.30.114 and not tcp port 22)

	## with password
	mkfifo /tmp/test.pcapng
	chmod +wr /tmp/test.pcapng
	sudo wireshark -k -i /tmp/test.pcapng &
	ssh [email protected] -p 22 tcpdump -s 0 -U -n -w - -i igb3 host 192.168.30.114 and not tcp port 22 > /tmp/test.pcapng

BSN32 / MTU_improvements.txt

Last active June 8, 2023 11:26

Fix MTU problems..

	### Ping tool

	## LINUX ##
	#prohibit fragmentation even local one
	ping -s 1462 -M do 195.175.39.49

	#do PMTU discovery, fragment locally when packet size is large
	ping -s 1472 -M want 195.175.39.49

	=========================================