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136 Results
  • Tutorial

    How To Setup a Firewall with UFW on an Ubuntu and Debian Cloud Server

    Learn how to setup a firewall with UFW on an Ubuntu / Debian cloud server.
    By Shaun Lewis Firewall Security IPv6 Ubuntu Debian
  • Tutorial

    How To Set Up WireGuard on Ubuntu 20.04

    In this tutorial, you will set up WireGuard on an Ubuntu 20.04 server, and then configure another machine to connect to it as a peer using both IPv4 and IPv6 connections (commonly referred to as a dual stack connectio...
    By Jamon Camisso VPN Security Networking IPv6 Ubuntu Ubuntu 20.04
  • Tutorial

    Understanding Sockets

    Sockets are a way to enable inter-process communication between programs running on a server, or between programs running on separate servers. Communication between servers relies on network sockets, which use the Int...
    By Jamon Camisso Networking IPv6
  • Tutorial

    How To Set Up WireGuard on Rocky Linux 8

    WireGuard is a lightweight Virtual Private Network (VPN) that supports IPv4 and IPv6 connections. A VPN allows you to traverse untrusted networks as if you were on a private network. It gives you the freedom to access...
    By Jamon Camisso Rocky Linux Rocky Linux 8 Security Networking VPN IPv6
  • Tutorial

    How To Configure Tools to Use IPv6 on a Linux VPS

    IPv6 is the most recent version of the IP protocol. Its most immediately useful advantage over IPv4 is that it has a much broader address space. In this guide, we will discuss the IPv6 versions of tools and how to c...
    By Justin Ellingwood Networking IPv6 Firewall Linux Basics
  • Question

    How do I disable ipv6 on Ubuntu 20.04

    I have followed every guide to disable ipv6 and yet after EVERY reboot I am still seeing it enabled. How do I disable it? net.ipv6.conf.eth0.disable_ipv6 = 0
    Accepted Answer: Looks like /etc/default/grub.d/50-cloudimg-settings.cfg overrides the GRUB_CMDLINE_LINUX_DEFAULT="console=tty1 console=ttyS0 ipv6.disable=1" line. So set it in that file and then run update-grub.
    3 By clemenko DigitalOcean Droplets Ubuntu 20.04 IPv6
  • Question

    Does a droplet’s ip ever change while in use?

    I would like to allow users to connect to Kubernetes droplets and stay connected over a droplet’s public ip.
    Accepted Answer: No, Actually Droplet IP never change itself. If you want to change and using load balancer you can reassign the public ip interfaces but that is again manual. If you are not using load balancer the public IP once assi...
    2 By 314brett Kubernetes IPv6 Node.js
  • Question

    Does Digital Ocean come with a cape and a motorcycle like Amazon Lightsail?

    Hello, I recently noticed that Amazon launched a new service called LightSail that seems to be attempting to compete with Digital Ocean. I can see that DO actually provides better value in terms of more resources for ...
    Accepted Answer: I think it's of high importance to always be mindful of the value that you provide to customers. It should always be part of any decision making process. With that said, a motorcycle most definitely qualifies as a str...
    5 By ithkuil IPv6
  • Question

    How To: Whitelist CloudFlare IPs

    When trying to setup Cloudflare DNS for SSL for my DigitalOcean Ubuntu server, I received a "Error 521" and started troubleshooting. I found this article: https://support.cloudflare.com/hc/en-us/articles/200169166-How...
    Accepted Answer: MDS nailed it in the comment section, essentially when your are getting a 521 error (https://support.cloudflare.com/hc/en-us/articles/200171916-Error-521-Web-server-is-down) on SSL requests, but non-SSL requests work ...
    1 By elob IPv6 DNS Security DigitalOcean Ubuntu
  • Question

    droplet ipv6 PTR

    Hi. I'm in my droplet enabled IPV6. It's work perfect, but i need to set PTR record for IPV6 address, how i can do that? With IPv4 address PTR record work correctly and for IPv6 i don't get resolve
    Accepted Answer: Hello, all The support for PTR records for IPv6 addresses was actually added a while back. By default, the each Droplet with IPv6 enabled will be configured with a single IPv6 address. This is the address that will be...
    4 By support9dcd3cc1e8ff47fa044 DigitalOcean DNS IPv6 Networking Debian 9
  • Question

    PTR record for IPv6?

    Hello , i configure my PTR record to my ip4 but i dont see the same for my ipv6. i change my /etc/hosts parametrer. change my sudo nano /etc/network/interfaces iface eth0 inet6 static address primaryi...
    Accepted Answer: Hello, @jobuu The Reverse DNS for the IPv4 is configured automatically from our end based on the droplet’s hostname. The support for PTR records for IPv6 addresses was actually added a while back. By default, the eac...
    3 By jobuu IPv6 DNS Ubuntu 18.04
  • Question

    Enabling IP6 in existing droplet?

    I am following this tutorial https://www.digitalocean.com/community/tutorials/how-to-enable-ipv6-for-digitalocean-droplets to enable IP6 in my existing droplet.I manage to enable the IP6 but for the configuration par...
    Accepted Answer: Hi, What you see in the /etc/network/interfaces file is correct. You are not running any wrong command. Existing contents of the /etc/network/interfaces file is not captured in the tutorial. Recommendation in the tuto...
    1 By NewCustomer IPv6 Ubuntu 16.04
  • Question

    Droplet not starting after poweroff

    I've added this parameters: net.ipv6.conf.all.disableipv6 = 1 net.ipv6.conf.default.disableipv6 = 1 net.ipv6.conf.lo.disable_ipv6 = 1 in /etc/sysctl.conf then sudo poweroff after this I can't power on my droplet. 'So...
    Accepted Answer: Seems like droplet not starting because of billing debt. I even can't create new droplet.
    3 By kris20a289ab3cb DigitalOcean IPv6 Configuration Management
  • Question

    Multiple private addresses?

    I want to test something that requires multiple virtual network interfaces up on the same server, each utilizing their own IP address. I understand that public IPv4 addresses are limited, but could I enable private ne...
    Accepted Answer: Currently we only support a single private IP address per droplet. If it will work for your purposes, you could enable ipv6 which would give you a block of 16 ipv6 addresses you can use.
    1 By clawblue Networking IPv6
  • Question

    Do I need private network in IPv6-only system?

    The question is about current implementation of IPv6 routing in DO. I have created two droplets with IPv6 adresses. tracepath6 says they are on the next hop from one another. Do the packets between these droplets go t...
    Accepted Answer: Our private and public networks are separate networks within our datacenter. While you may only see one hop when using the public network, it is metered unlike the private one. We are not yet charging for data overa...
    1 By lexsys IPv6 Networking
  • Question

    ipv6 broken on Ubuntu 20.04

    I noticed last night my IPv6 configuration is borken on my Ubuntu 20.04 machine. It used to work before, I guess (but don't know) it broke during an update. Any idea how to re-enable it?
    1 By 343max IPv6
  • Question

    How to removed my IP as blacklisted in UCEPROTECTL3 Spam

    I need your help on how to get white-listed my IP in UCEPROTECTL3 Spam
    44 By lourdesyang DigitalOcean Email IPv6 Debian
  • Question

    Server IP blacklisted on DroneDL

    Dear DO team, We recently were getting frequent internal server errors resulting in significant downtime to complete testing the deployment. Upon researching using the tools available on internet from website (mtoolbo...
    1 By reventstore Server Optimization IPv6 Building on DigitalOcean DigitalOcean
  • Question

    apt-get update error - W: Failed to fetch mirrors / Some index files failed to download. They have been ignored, or old ones used instead

    Hello there, When I log in to my droplet and execute the following command: apt-get update I get the following: ``` Err http://repo.mysql.com trusty InRelease Err http://ppa.launchpad.net trusty InRelease Err http://r...
    8 By paveltashev Linux Basics Linux Commands Security Server Optimization IPv6 Ubuntu
  • Question

    IPv6 connectivity issues with nginx

    Hi, I recently turned on IPv6 addresses on one of our droplets hosted in Bangalore. I added a new AAAA entry for this IPv6 address, in addition to the A entry. I now have 2 entries (addresses are obscured here): A ...
    5 By roshanbaliga Nginx IPv6 Ubuntu 16.04