AysadKozanoglu
/ befehle-liste
Created
January 20, 2017 22:34
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| // kill ip connection | |
| tcpkill host <ip> | |
| //get concurrency connection per ip | |
| netstat -atun | awk '{print $5}' | cut -d: -f1 | sed -e '/^$/d' |sort | uniq -c | sort -n | |
| // shell simultanously connection simulate | |
| for i in {0..60}; do (curl -Is http://46.101.214.181:10101 | head -n1 &) 2>/dev/null; sleep 1; done; | |
| //ip from hostname domain |
AysadKozanoglu
/ iptables_autoBlock_Ddos-flooting.sh
Last active
February 28, 2020 16:52
get the informations with netstat and and see of count of connetion per ip and if the limit is reached block it in ipatbles
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| #!/bin/bash | |
| # | |
| # auto detetion and blocking | |
| # source of flooting ip adress | |
| # | |
| # by Aysad Kozanoglu | |
| # email: aysadx@gmail.com | |
| # | |
| # manually unblock the blocked source ip: | |
| # |
AysadKozanoglu
/ netWatch_ddos.sh
Last active
February 28, 2020 16:52
display all connection by counting the connection per ip address
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| #! /bin/sh | |
| # author: Aysad Kozanoglu | |
| # email: aysadx@gmail.com | |
| # | |
| # QUICK USAGE: | |
| # wget -O - "https://git.io/fAtyh" | bash | |
AysadKozanoglu
/ ddos detection methods
Created
June 6, 2018 17:53
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| Detecting and Mitigating DDOS Attacks | |
| #List all Finish (FIN) packets | |
| machine1 : sudo /usr/sbin/tcpdump -Nnn -i any -s0 'tcp[13] & 1 != 0' | |
| #List all SYN and SYN-ACK packets | |
| machine1 : sudo /usr/sbin/tcpdump -Nnn -i any -s0 'tcp[13] & 2 != 0' | |
AysadKozanoglu
/ .ssh-agent_bashrc
Created
February 24, 2020 15:19
Sharing the same `ssh-agent` among multiple login sessions
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| # put the following code to your .bashrc | |
| # Sharing the same `ssh-agent` among multiple login sessions | |
| SSH_ENV=$HOME/.ssh/environment | |
| function start_agent { | |
| echo "Initialising new SSH agent..." | |
| /usr/bin/ssh-agent | sed 's/^echo/#echo/' > ${SSH_ENV} | |
| echo succeeded | |
| chmod 600 ${SSH_ENV} |
AysadKozanoglu
/ bashrc_template.sh
Created
January 22, 2020 23:43
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| # | |
| # aurhor: Aysad Kozanoglu | |
| # email: aysadx@gmail.com | |
| # | |
| # see /usr/share/doc/bash/examples/startup-files (in the package bash-doc) | |
| # for examples | |
| # If not running interactively, don't do anything | |
| [ -z "$PS1" ] && return |
AysadKozanoglu
/ php7.2 install debian_jessie
Last active
January 21, 2020 21:56
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| #!/bin/sh | |
| #author: Aysad Kozanoglu | |
| #email: aysadx@gmail.com | |
| # | |
| # QUICK launch script | |
| # wget -O - https://git.io/fhxNt | bash | |
| # |
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| #!/bin/sh | |
| # Author: Aysad Kozanoglu | |
| # Dists: debian 9, 10 (stretch buster) | |
| # ubuntu 18 and above | |
| which apt-get && apt-get install -y --yes apt-mirror || apt install apt-mirror -y --yes | |
| apt-mirror |
AysadKozanoglu
/ rc-local.service
Last active
December 5, 2019 22:10
execute rc.local on boot startup on systemd OS types
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| # | |
| # file: rc-local.service | |
| # author: Aysad Kozanoglu | |
| # OS types: systemd | |
| # | |
| # Description | |
| # ============ | |
| # execute rc.local on boot startup | |
| # systemd-rc-local-generator if /etc/rc.local is executable. | |
| # |
AysadKozanoglu
/ kvm-libvirt-restart-network.sh
Created
December 4, 2019 10:22
Effectively restarting kvm/libvirt network
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| #!/bin/bash | |
| # Author: Aysad Kozanoglu | |
| # Effectively restarting kvm/libvirt network | |
| set -e | |
| set -u | |
| NET_NAME=default | |
| # NET_HOOK=/etc/libvirt/hooks/qemu |