Linked Questions

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0answers
11 views

Block connection through proxy in firewall [duplicate]

I'm getting some 'ddos' on my Linux machine (ubuntu 14.04 64bit). I have a lot of connections from IP which are proxy IP's (like tor), on specific port. Question: How to block all proxy connections ...
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vote
2answers
46 views

High inbound and outbound network traffic

Over the last day or so, one of instances has had a large amount of bandwidth consumed. This means that we have nearly exceeded our allowance (roughly the same amount inbound and outbound). Looking ...
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0answers
30 views

Redirect IP to another IP [on hold]

My domain redirects to my Teamspeak 3 Server on port 9987, and it works perfectly. But now I will add a second server to block DDoS so I must redirect my domain to server #1 and server #1 must ...
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votes
1answer
50 views

Too many open connections [duplicate]

I have a dedicated server with 32GB RAM. It works all fine till some punters came to ddos my server. I had really high uplink bandwidth usage (over 150Mbps). I looked at netstat with the following ...
-2
votes
3answers
58 views

Use two or more IP addresses to prevent DoS attacks [duplicate]

N00b question But say I had a dedicated server with two IP addresses, and the software (We'll just use Apache as an example) was using both IP address to serve content, in the event of a DoS attack ...
-1
votes
1answer
127 views

How to stop small DDOS attacks (443 port)?

On the server goes DDoS attack. ~# netstat -n -p | awk '{print $5}'|awk -F: '{print $1}' | sort -n | uniq -c | sort -nr | head -n10 48 109.229.9.53 47 31.207.244.130 45 87.252.227.83 ...
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0answers
18 views

Can't stop the UDP packets [duplicate]

My datacenter has stopped my cloud server because my server is producing excessive UDP traffic. I have run: tcpdump -i eth0 udp and following is a sample set of log. 13:09:42.789583 IP ...
1
vote
2answers
257 views

Deny all “direct” traffic [duplicate]

My server is under heavy attack (maybe DDOS, I've no idea). I've checked the access logs (to put things into perspective, it's site with a daily 1000 visitors, nothing fancy): 78.176.175.208 - - ...
9
votes
6answers
684 views

DDoS. Are we that helpless? [duplicate]

With recent DDoS incidents related to wikileaks, I can't help but feel that pretty much all sites online are very vulnerable to such attacks. Visa, MasterCard (to name a few) have shut down because of ...
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votes
0answers
24 views

Windows Advanced Firewall - Advanced Rules? [duplicate]

my game server is being DDoS attacked (Windows Server 2012). Probably you would say there is nothing I can do but I don't think so because I can use my dedicated server in a normal way, it's just that ...
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votes
0answers
34 views

How to block a DDoS attack? [duplicate]

My website is under a DDoS attack with bots. They are all coming in from different IPs so I can't block them all. Is it possible to make a CAPTCHA or a password just to connect to the site first for ...
0
votes
1answer
3k views

Iptables ratelimit UDP DOS attacks [duplicate]

Well, I've been a victim of Ddos attacks and I really can't figure out how to avoid it. On some machines it works, while on some it doesn't or probably I'm doing it wrong in some way, Attackers are ...

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