A denial-of-service (DoS) attack is an attempt to deny service to legitimate users by sending extreme amounts of requests to a server.

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Route gameserver traffic through cloudflare? [closed]

I use cloudflare for my website and we have a gameserver I was wondering if it is possible to route traffic through cloudflare. This recently sprung into my head when I realized that I could route ...
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My server got a DDos attack; how can I debug further from logs? [closed]

My server got a 13 GBit DDoS attack so LeaseWeb nulled its IP address and the attack ended. My IP address is still blocked. I got a temporary second IP address, which is not yet public. How can I ...
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CSF/LFD - would I really need CPHulk enabled also?

So if I have the default configuration of CSF/LFD firewall running, should I enable CPHulk, or does CSF/LFD already do what CPHulk does? If the answer is "No, CSF/LFD does not do what CPHulk does", ...
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How to get rid of DOS attack: RST Scan?

I have Netgear Wnr1000v2 router. I have set my NAT to secure mode ( I don't know if that helps ). Many a times when I see my router's log I see lots of DOS attack: RST Scan. I somehow think that these ...
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How to force Apache to answer only to Cloudflare?

I'm sure you all know what Cloudflare is (it's a very famous CDN). What I want to do, is force my Apache HTTP server to ONLY answer to Cloudflare. I want Apache to ignore and close or not respond to ...
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Is it a DOS or DDOS if the attacking computers are on the same network

I'm currently doing a reflective report (reviewing someone else's work) for uni and the report is about DDOS. For the report the author carried out a DOS attack on a web server using computers that ...
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How come sites like Google/Facebook/etc. don't get DDOS'd even though they receive so many requests?

Something I don't understand: (Tens/hundreds of?) thousands of people simultaneously try to connect to a site like facebook.com or google.com. From what I understand, they must all necessarily ...
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How to detect DoS attacks / manually block IP on Ubuntu?

I have a VPS with Ubuntu. I host a small website (~10 visitors at the same time). Sometimes the website starts lagging. It lags so bad that my SSH connection starts lagging too. Running top says that ...
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How to find DoS attack source IP address in windows server 2008?

I have a windows server 2008 R2 which is victim of a DoS attack. How can I find out which IP is the source of attack? I have a anti DoS module on IIS 7.0 which works fine but it seems destination is ...
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Firewalling all incoming traffic with custom rules

How do you automatically block all incoming traffic by creating custom rule for every connection (in real time) using iptables? To clarify - the situation is that my linux box is being DDOSed via ...
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security of and the flaws of having open ports?

Ok, so, here is my my issue. awhile back, a friend wanted to grab some files from me, so I gave him my AFP (Apple File Protocol) address. Much like FTP SSH or SMB. Its cool for mac users and thats ...