Hey for all of you hand-rolling a Kubernetes / Docker cluster, I thought I’d mention a bug with Centos 7.x that is still yet to be fixed. The error is: /proc/sys/net/bridge/bridge-nf-call-iptables: No such file or directory. The fix is simple. Just execute the following command (as root). $ modprobe -v br_netfilter Problem solved. If you…
Category: Networking
Does SSL matter? It does and it’s not just web encryption.
Over the last decade, there’s been an ever growing emphasis on security. SSL is taking a seat “Front-Row center” on this period of enlightenment. Interestingly enough, it’s not just about encrypting your traffic on the web. The purpose of this is far deeper. This article will delve into the “why” SSL’s importance has grown and…
Database Backed Web Applications Advice
Here’s the scenario. You’ve got a dedicated server running windows in a server farm (generic dedicated server provider). You have mysql + asp or php app running all on the same server. Raid 1 mirroring and 2 GB of ram. You have to have windows, because your application supports it. Sound Familiar? It’s a problem…
A Perfect Example of Disaster Recovery in the Cloud
Netflix went down yesterday due to power problems at Amazon’s Virginia Datacenter. This of course caused an outage for some of Amazon’s EC2 customers. (Like Netflix). This is a perfect example of why Redundancy in the cloud is important. All of my customers (some of them at EC2 Virginia) stayed up and available. How? Redundancy….
VOIP Tunneling with SBO or OpenVPN?
There seems to be much talk these days of tunneling and Voice-Over-IP(VOIP) most of it for the singular purpose of keeping the communications secure or hidden from the nasty overlords of the Internet. There seems to be two camps in this and two main technologies. Session Bandwidth Optimization and OpenVPN. Both do similar things, but…
True Dynamic Path Routing
Everybody talks about BGP and assumes it’s as easy as just simply routing out the internet gateway. This is what most ISPs and Cloud providers do is just advertise their paths. A truly high-performance cloud provider will have multiple connections to multiple backbones and use ToS and try special paths to certain IPs. This is…
What happened to “Human” in Humanity?
I really do need to ask this question. I appreciate my followers and yes, they’re a loyal bunch. I do need to EVERYBODY one question and everyone on the Internet. We all go about our lives. We see the homeless person at the exit ramp, on the sidewalk, etc. Granted a lot of them are…
Free Tech Support from me…
OK. I really believe in my project for helping the unemployed, so here’s what I propose. If you donate to my project and of course, get others to donate to my project, I will provide you with free tech support (my skills and advice) for a period of time. Donate: $25.00 you get 1 hour…
I guess this is a call out for help
I’m at the point where I can’t support this blog due to the traffic I’m getting. I really need some donations or something. I’m pushing about 5 GB of data a day and due to my divorce, I can’t afford to support this continually. I’m not asking for donations, although, they would help, but I…
Privacy on your Smartphone a solution for all
I’ve recently written an article on smartphones only to think about a few things. One of the things I thought about was the fact that nobody has created a VPN service that is truly anonymous (as in not keeping logs) for smartphones. (They claim they are, but there is very little truth to that). So,…