Networking

Networking

What is TTL in ping / traceroute?

If you’ve run the essential diagnostic program “ping”, you may have noticed as part of the output, it tells you the “TTL” for each test result. You may have wondered, what does TTL mean? Should I be concerned about it? What does TTL actually do? We will explore that question in today’s blog. So first

IOFLOOD.com – Phoenix, AZ, Dedicated Servers: 2020 Carrier Upgrades and Network Improvements

Here at IOFLOOD.com we are continually looking to improve the performance and reliability of our network for you, our dedicated server customers. So today we’re happy to announce new carrier and network upgrades. These upgrades improve both our upstream internet provider connectivity and the internal network that your servers connect to.   Firstly, to improve performance

Got Bandwidth? 10Gbps and 40Gbps Ports Now Available

With the rise of online video, more bandwidth is being used now than ever before. At the same time, with innovations from Arista Networks and many others, high speed switching is becoming more and more affordable. IOFLOOD is proud to announce, that customers like you can now get 10gbps and 40gbps internet and private connectivity

IPv4 Address Subnetting Explained

Every server at IOFlood comes standard with one /29 worth of IPv4 IP addresses.  Additional IP’s can be added at an extra cost, up to a total of one single /24 (or equivalent) worth of IPv4 addresses per server.   But how many IP’s do you really get with a /29 or a /24? In this

Connecting to an IOFlood VPN via PPTP on Archlinux

We love servers, and we love our customers! Our customers are the ones we do this for, so it’s always a great thing for us when we get positive feedback from our customers, we know we’re doing things right. Recently one of our customers reached out to us and shared with us a blog entry

IOFLOOD.com – Phoenix, AZ, Dedicated Servers: 2019 Carrier Upgrades and Network Improvements

Updated: You can read about our 2020 network upgrades here: https://ioflood.com/blog/ioflood-com-phoenix-az-dedicated-servers-2020-carrier-upgrades-and-network-improvements/ IOFLOOD.com is proud to announce that we’ve completed a series of upgrades to our network to maximize performance and reliability for our dedicated server customers. To improve performance and reliability, all top of rack switches have been replaced with upgraded Juniper switches. These new

How to set up source nat routing (SNAT) in iptables to load balance outbound connections across multiple IP addresses

In our earlier days, before IOFlood, some of us ran web based proxy services. These were popular at workplaces or schools for accessing websites that were blocked there, such as gmail and myspace (remember myspace?). One common problem that came up, was that with so many users each sharing one IP on one server, our

Configuring additional IP addresses (virtual interfaces) on Centos Servers

You may have a Centos dedicated server or VPS, and you’ve been assigned additional IP addresses, which have not been configured by your hosting provider. There are good reasons your host won’t have configured these for you, because if you are using virtualization, many VPS control panels need to manage these IPs, and so it

nf_conntrack: table full, dropping packet — A solution for CentOS Dedicated Servers

A common problem you may experience is sluggish performance or disconnections from your Centos dedicated server, even though there is sufficient CPU, ram, disk i/o, etc. After some troubleshooting, you may come to believe you are being DDoS attacked, but you don’t see an unusual amount of traffic, and there’s no single IP or handful

DDoS protection, does my server need it?

Many of us have heard about DDoS attacks recently, as they are becoming more and more common and reported in the news. Some of us may have been targeted by them, or otherwise impacted. A question we get from a lot of customers is “Do I need DDoS protection?” The answer is much like “what