Posts

Master-Slave PowerDNS Configuration and Domain Migration from BIND Using API and AXFR

One of my latest projects was a fully dockerized name server infrastructure based on PowerDNS: one master and two slaves — one in the same subnet and the second running in a cloud on a basic virtual machine. Why PowerDNS? Because I needed an API, a proper admin-friendly web interface, user management, and LDAP integration. PowerDNS fully matched my requirements. Why Docker? Because I wanted some level of automation and IaC — Docker fits nicely in the middle, where you have several configs and docker-compose files fully describing the container configuration.
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How I migrated hundreds of sites from DirectAdmin to ISPConfig

Some time ago I faced a serious challenge: migrating a large number of similar websites from DirectAdmin to ISPConfig with maximum automation. The hosting platform was changed, and doing everything manually simply wasn’t an option. To solve this, I wrote a better CLI wrapper for ISPConfig that focuses on usability while reusing the default API functions underneath: ispconfig-cli
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How to grab your data from Russia in current situation

You have some infrastructure in Russia and you want to move out, for example to Europe? Now is it a problem. During last tests Russia limited long sessions, all that are longer than 1 min start throttling to 100kBps. Maybe not to all destinations, but I checked many major Europe providers and Belarus as proxy, BTW, Belarus throttling 50kBps.
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pssh (parallel-ssh) problems on Debian 10 with Python 3.7

Python reminds me of PHP many years ago with totally incompatible versioning on one server. Do you need another version? The best way - new servers, because any update or installation can break all global environments. Half a year after “Sunsetting Python 2” but main distributions continue to push python2 during installation and it’s a big challenge not to replace the default version after some update or installing a new package.
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FreeRadius and Google Workspace LDAP

This is the first time when I used FreeRadius, this program reminds me of Postfix, I mean similar complicated and powerful tool. Only one big difference - very bad documentation and not enough examples. In the maillists a lot of questions without answers from FreeRadius guru. Here I provided examples of how I solved some problems or where I took too much time…
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First look on UniFi Wireless Access Point

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New project - new challenge. For this project I got UAP-AC-Pro, UAP-AC-Lite and UAP-Outdoor+.
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Work From Home or bring your corporate network at home

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Work From Home (WFH)… Not a big problem for IT. Almost all that I need I can do without any discomfort. Big understanding of how to work became in the first carnitine time, in Lithuania it was in summer. Good weather, own house, lots of forests around… Who cares about COVID19, I just be with my family and spend my time as usual.
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