start new:
tmux
start new with session name:
tmux new -s myname
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' | |
# Configuration file for runtime kernel parameters. | |
# See sysctl.conf(5) for more information. | |
# See also http://www.nateware.com/linux-network-tuning-for-2013.html for | |
# an explanation about some of these parameters, and instructions for | |
# a few other tweaks outside this file. | |
# See evil packets in your logs. | |
net.ipv4.conf.all.log_martians = 1 |
#!/bin/bash | |
set -u | |
set -e | |
set -o pipefail | |
export PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin | |
cat <<'EOF' > /etc/modprobe.d/blacklist-ipv6.conf |
# --------------------------------------------------------------------------- | |
# | |
# Description: This file holds all my BASH configurations and aliases | |
# | |
# Sections: | |
# 1. Environment Configuration | |
# 2. Make Terminal Better (remapping defaults and adding functionality) | |
# 3. File and Folder Management | |
# 4. Searching | |
# 5. Process Management |
#!/bin/sh | |
available=$(free --mega -tw | grep "Total:" | awk '{print $4}') | |
ps -ylC httpd --sort:rss | awk -v avail="$available" '{ s += $8; } END { print "Average Size:", s/(NR-1)/1024, "MB,", NR-1, "Processes, Total usage:", (s/(NR-1)/1024)*(NR-1), "MB, Max Servers:", avail/(s/(NR-1)/1024) }' |
Backstory: I decided to crowdsource static site generator recommendations, so the following are actual real world suggested-to-me results. I then took those and sorted them by language/server and, just for a decent relative metric, their Github Watcher count. If you want a heap of other projects (including other languages like Haskell and Python) Nanoc has the mother of all site generator lists. If you recommend another one, by all means add a comment.
# Split MYSQL dump file | |
zcat dump.sql.gz | awk '/DROP TABLE IF EXISTS/{n++}{print >"out" n ".sql" }' | |
# Parallel import using GNU Parallel http://www.gnu.org/software/parallel/ | |
ls -rS *.sql | parallel --joblog joblog.txt mysql -uXXX -pYYY db_name "<" | |