deviousway

# -i $INTERFACE -v -n -c $Number_of _packets -w attack.log dst port 80
tcpdump -i eth0 -v -n -c 500 -w attack.log dst port 80
#After you can analise
tcpdump -nr attack.log |awk '{print $3}' |grep -oE '[0-9]{1,}.[0-9]{1,}.[0-9]{1,}.[0-9]{1,}' |sort |uniq -c |sort -rn
#show only Top-20
tcpdump -nr attack.log |awk '{print $3}' |grep -oE '[0-9]{1,}.[0-9]{1,}.[0-9]{1,}.[0-9]{1,}' |sort |uniq -c |sort -rn | head -20

deviousway

sudo -u postgres psql
sudo -u postgres createuser <username>
sudo -u postgres createdb <dbname>
 
sudo -u postgres psql
psql=# alter user <username> with encrypted password '<password>';

psql=# grant all privileges on database <dbname> to <username> ;

deviousway

ffmpeg -i $input -map_channel 0.1.1  -strict -2 $output

deviousway

for i in *mkv; do ffmpeg -i $i -vcodec copy -acodec copy $i.mp4; done

deviousway

#Show email passwords.
/usr/local/psa/admin/sbin/mail_auth_view

deviousway

mkdir -p /mnt/disk
mount -o loop $$$$.iso /mnt/disk

yum install squashfs-tools
unsquashfs filesystem.squashfs
mv filesystem.squashfs /path/to/backup/


 mount squashfs/LiveOS/ext3fs.img ext3fs -o loop 

deviousway

CREATE database $databasename;
CREATE USER '$newuser'@'localhost' IDENTIFIED BY '$password';
GRANT ALL PRIVILEGES ON $databasename.* TO '$newuser'@'localhost';
or to all
GRANT ALL PRIVILEGES ON *.* TO '$newuser'@'localhost';

Reset pass for mysql user

ALTER USER '$user'@'localhost'   IDENTIFIED BY '$password' ;

deviousway

sed -i 's/oldstring/new string/g'

deviousway

exim -bp | awk '/^ *[0-9]+[mhd]/{print "exim -Mrm " $3}' | bash
or
exim -bp | exiqgrep -i | xargs exim -Mrm

deviousway

cat $filename | egrep -v "^#"
or
cat $filename | egrep -v "(^#.*|^$)"