Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [cloudflare]

CloudFlare is a content delivery network and distributed domain name server service marketed as improving website performance and speed and providing security.

567 questions
2
votes
2 answers

Correct usage of whitelisting cloudflare IPs in iptables

I'm relatively new to using the command line so I'm understandably nervous about fiddling around with IP tables and accidentally doing something wrong which consequently opens up vulnerabilities in the firewall. So, I thought I would ask here if my…
Tyrx
  • 51
  • 3
2
votes
1 answer

Fail2Ban adds iptable rules but they are not working?

Fail2Ban just blocked my IP for 3 SSH attempts. It added the iptables rule and I can see it using the "sudo iptables -L -n" command. But I can still access the site and login through SSH! What might be the problem? Is it because im using CloudFlare?…
THpubs
  • 1,695
  • 7
  • 26
  • 43
2
votes
1 answer

AWS Free Usage Tier + Cloudflare... possible?

If I throw my MySQL/PHP app up on a Amazon EC2 instance (using their AWS Free Usage Tier program) and couple it with CloudFlare (the free plan of course) roughly how many daily visitors can I comfortably handle before performance starts to suffer?…
crashintoty
  • 261
  • 1
  • 4
  • 11
2
votes
0 answers

Cloudflare instead of nodebalancer in linode kubernetes cluster

there is a similar question regarding cloudflare as a load balancer for the VPS. But in my case I'm looking for using cloudflare as a nodebalancer replacement for the linode kubernetes cluster. Is there any chance I can make it work? Also, if there…
Kostanos
  • 171
  • 6
2
votes
1 answer

Allow only cloudflare access to my website and block all visits, bots or crawlers to my IP address

I have a question, I use cloudflare DNS on my domain. My VPS 30.xxx.xxx.xxx.xx Port 4490 My VPS Ip was filtered by crawler web pages, and I am getting bots hitting my server. I am thinking of buying a new VPS and adding a protection that only allows…
Razyit
  • 21
  • 2
2
votes
1 answer

Use ports other than 80 and 443 on Cloudflare

I have an issue where I can't use ports 80 and 443 for my website/services because these are already taken on the router. I don't have control over, can't change it or put a reverse proxy in there so I am forced to use different ports. I found that…
Gerge
  • 35
  • 5
2
votes
1 answer

DANE and TSLA in Cloudflare

can anyone tell me how to set up DANE and TSLA in Cloudflare? Do we need Google Cloud DNS for TLSA records? which mail server will allow using TLSA at this point? ref link for DANE
CADENTIC
  • 23
  • 7
2
votes
1 answer

Identifying cause of too many CLOSE_WAIT in IIS

I have a windows server running a web api that serves an android app, and today I started getting alarms saying that my server was timing out. This server is running behind Cloud Flare. When I connected to the server via RDC, I noticed that it was…
User_52345
  • 31
  • 2
2
votes
1 answer

How to solve issues with Exchange's Autodiscover (xml) and any peculiar clients like Windows Communication Apps [HxTsr.exe] with complex DNS config?

For the search engine, context elements: Exchange Online Office 365 / Microsoft 365 --> Particular Outlook --> outlook.office.com Windows' Mail & Calendar App [HxTsr.exe, "microsoft.windowscommunicationsapps"] Apex domain redirect to…
A71
  • 151
  • 1
  • 6
2
votes
1 answer

Error trying to set my site up with Cloudflare

I'm trying to add Cloudflare to my site - my site is a basic Azure site - it doesn't have a custom domain, (e.g. https://mysite20210708071234.azurewebsites.net/ - this is not the actual site). I go to Cloudflare and add a new website, and I get the…
stannage
  • 23
  • 2
2
votes
1 answer

How to prevent DDOS attack impact on Netlify? (downtime + bandwith usage/cost)

Situation: React app that was initially running on a VPS A few days ago, we were the target of a DDOS attack that took the site down. During the attack, we decided to migrate to Netlify. Once migrated, the site was live again. The attack was…
ludovico
  • 73
  • 7
2
votes
1 answer

How does Cloudflare Firwall rules order work?

how does the order of Cloudflare rules work? I read the documentation but doesn't explain it (it's self explanatory apparently) but is it? For example if i want to block a ASN but allow an IP inside of it, what order should i use? ORDER A: Rule 1:…
Michael Rogers
  • 60
  • 1
  • 3
  • 16
2
votes
2 answers

Configuring SMTP through Cloudflare

My domain registrar is Cloudflare and my site is hosted through A2 Hosting. My problem is that my email worked fine when A2 Hosting was my domain registrar and web host. Now, neither Thunderbird or Outlook can connect to my server. My current DNS…
Angeliss44
  • 51
  • 1
  • 9
2
votes
2 answers

How do I check SSL certificate when using Cloudflare DNS?

So usually I just create a letsencrypt certificate and setup it up, then i open up the browser and click the "LOCK" icon and check the certificate info, this tells me that my setup actually worked and was installed correctly. What I ran into today,…
farinspace
  • 173
  • 1
  • 1
  • 13
2
votes
1 answer

Could Cloudflare slow down writing process to database?

I have two identical WordPress sites - live and staging - both sitting in the same EC2 server. The live is using Cloudflare, the staging is not. I noticed that database writing processes are slower in the live site. Have you experienced this? Could…
cilapo1541
  • 53
  • 2
  • 6
1 2 3
…
37 38