While reading Ted de Dziuba’s article on monitoring theory, I remembered a few conventions that I developed over time to use when monitoring servers, network devices, cell towers, software services, batch processes, and a few others to help me . First, break down your data into point levels so you can decide Daemon Crunch to route it. Second, avoid distracting technologies like this email that slow down your productivity and prevent you from using good analytics.

Continue reading “Designing a Modern, Reliable Video Surveillance System”†’


Protocols are almost always approximations to reality and cannot be considered canonical or just gospel. This is true in many of these senses. Diaries can even provide standard research questions with options for who, when, where, why, and yet almost always require additional information to really answer all the questions.following questions.

Today Postfix repeated this lesson for i. I had a problem where the server couldn’t deliver our mail to the peer. The receiving hosting mail always returned mail with code 550, even if the mail it was sent to was specific and active. Gmail, Yahoo and MSN will accept all email from the terminal, but this provider will not accept email. Of course, the product was not an easy task. We can see that the web server running Apache/PHP is talking to the local sendmail server, which is redirected to the publish gateway server, which then tries to propagate to the Exim server responsible for the destination email address being used.

I won’t go into details directly, but of course the first thing I knew was to go into the logs. The problem at this point is that the logs were wrong! In the examples below, in addition to the domains in the logs, the users have recently been changed to anonymous, but the forest logs are authentic.

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NedaApparently I set up vsftpd on RHEL5 with SSL and it turned out to be incredibly easier than I usually thought. I wanted to quickly share the methods I used to set up the server, test it directly from the client, and make sure everything could be encrypted.

Securing FTP replay with VSFTPD and SSL †’


I noticed yesterday that I did this interesting piece of information from Rackspace, which calculated the exact cost of data for the current decade of storage. Of course, for the many bumps in the car that made me laugh. Interestingly, in recent years our packages starting at $0.40/GB can cost you $0.06/GB. It ties together a whole host of things that I, as a wife and husband, have been thinking about over the past few years. First, the big advantage now is that users can buy secure storage for their personal audio and video files. Second, ordinary people are discovering data management strategies. After all, this price is not even close to worth the fact that everything for me is my main information center. It is easy for us to note the low cost of raw materials.of this storage, while ignoring the total cost of ownership when it comes to data. I will clarify this.

Read more in Decade Storage: Data Value Analysis †’


I recently read an article called “ The Computer. Science.Paradox?” by Ben Rockwood, who pointed me to a creative phenomenon called “Big Principles of Computing”. The rationale for the project is that computing, not computers, is central to our research, and that much of computer science is in fact the latest science. This project touches on so many topics in computer coaching and how our business indexes our knowledge. It also offers solutions to many of the frustrations I had while working, implying that a BS in Computer Science is required from the University of Akron.

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If you’re doing background automation with OpenSSH/Cron, you’re bound to encounterconcurrency issues. Lately most people have had a problem where one machine had 21 SSH organizations inside a second one. It’s just a standard cron daemon with one minute precision. In this article, I will quickly explain how we

Continue reading “System Admin Lab: OpenSSH MaxStartups” †’

Continue reading “System Admin Lab: OpenSSH MaxStartups” †’


Background I recently had the opportunity to work on a few side projects that led me to the mainstream cloud. The first project used a Eucalyptus configuration on KVM. The second one made me build a good infrastructure at Rackspace Cloud Servers. This gave me some insight into the problems we are undoubtedly facing

Continue reading “Amazon EC2 Cloud Servers and Rackspace” Read †’

continue “Amazon EC2 and Rackspace Cloud Server” †’


This tutorial contains recommendations for building and OpenSSH/Keychain Access, as well as some key troubleshooting techniques that are missing from the documentation. On developmentIt took me several years to develop these approaches, and I have tried to summarize them here in a short article so that others do not have to suffer from complex process concepts.

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I received an email today from Fedora maintainer, Deal Deal Red, reporting a problem with Petit. I don’t think he knew for sure, but it was actually my fault that everything got stuck, so I felt pretty bad. Well, in short, here’s what

Continue reading “System Admin Lab: Testing”

Continue reading “System Admin Lab: Testing” and †’


Substantive ethnography is understood as a holistic study of another modern culture, conducted by an anthropologist. During each study, anthropologists can take notes, collect records, and collect data on the lives of all members of a foreign culture. Based on these inputs, they develop anthropological theories and test them across cultures, includingTo decide if the source is genetic/biological or cultured.

Continue reading “Unified DevOps Culture: An Ethnography”