df -h

telnet cisco login

sh_int.sh:

#!/usr/local/bin/expect -f

spawn telnet [lindex $argv 0]
expect ogin {send login\r}
sleep 1
expect assword {send password\r}
sleep 1
send “terminal length 0\r”

#if juniper

#send “set cli screen-length 0\r”

send “show interface [lindex $argv 1]\r”

send “exit\r”
expect eof

./sh_int.sh cisco_1 gi1/1.5

ban sshd invalid user

tail -10000 /var/log/messages | egrep sshd | egrep Invalid | awk ‘{print $10}’ | sort -n | uniq -c | sort -n | awk ‘{print “iptables -I INPUT 1 -s “$2” -j DROP”}’ | sh

mysql check

#!/bin/sh

/usr/local/etc/rc.d/mysql-server stop;
/usr/local/bin/myisamchk -r —sort-index -O sort_buffer_size=16M /var/db/mysql/*/*.MYI;
/usr/local/etc/rc.d/mysql-server start;

mcrypt

#!/bin/sh

cd /home/user/passs
mcrypt -d ./passw.nc
cat ./passw
rm ./passw >/dev/null 2>&1

nat forward

echo 1 > /proc/sys/net/ipv4/ip_forward

iptables -I FORWARD 1 -s 10.0.0.0/8 -j ACCEPT

iptables -I FORWARD 2 -d 10.0.0.0/8 -j ACCEPT

iptables -t nat -A POSTROUTING -s 10.0.0.0/8 -j MASQUERADE

passgen

cat /dev/urandom|tr -dc “a-zA-Z0-9-_\$\?\!”|fold -w 8|head

flash streaming

ffserver.conf:

Port 8090
BindAddress 0.0.0.0
MaxClients 100
MaxBandwidth 10000
CustomLog /var/log/ffserver
NoDaemon

<Feed feed1.ffm>
File /tmp/feed1.ffm
FileMaxSize 100M
ACL allow 127.0.0.1
</Feed>

<Stream test.swf>
Feed feed1.ffm
Format swf
VideoCodec flv
VideoFrameRate 15
#VideoBufferSize 2048
VideoBitRate 128
VideoGopSize 30
#VideoIntraOnly
VideoQMin 5
VideoQMax 30
#VideoSize 640x480
VideoSize 320x240
Noaudio
</Stream>

<Stream stat.html>
Format status
</Stream>