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Linux iptables

LoOoZa

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Sep 18, 2017
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hi guys
some people attack on my server but i have a proxy and i wanna protect my server
i use this script but i have error!

my error is

./addos.sh
./addos.sh: 88: cannot create /proc/sys/net/ipv4/conf/all/mc_forwarding: Permission denied
./addos.sh: 88: cannot create /proc/sys/net/ipv4/conf/default/mc_forwarding: Permission denied
./addos.sh: 88: cannot create /proc/sys/net/ipv4/conf/eth0/mc_forwarding: Permission denied
./addos.sh: 88: cannot create /proc/sys/net/ipv4/conf/lo/mc_forwarding: Permission denied

thanks
 
You don't need a script, you need to understand the type of the attack and what it's targeting.
And we can't help you with that if you don't share any details.
 
idk but i send photo of this attack ,if any one do attack on this program , server freez and die but not lost internet on vps only port die
 
how can i check which attack or ddos method I am getting

Test these rules and let me know if it's still possible to attack.

sudo iptables --new-chain RATE-LIMIT
sudo iptables --append INPUT --match conntrack --ctstate NEW --jump RATE-LIMIT
sudo iptables --append RATE-LIMIT --match limit --limit 20/sec --limit-burst 20 --jump ACCEPT
sudo iptables --append RATE-LIMIT --jump DROP
 
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