Administration Section
After Zextras released its own builds of Zimbra Collaboration Open-Source Edition 9, many administrators decided to upgrade their mail servers to the new version and reached out to Zextras technical support to inquire about how this can be done without jeopardizing the functionality of one of the enterprise's key systems. Upgrading to Zimbra OSE 9 from Zextras can be done […]
Have you studied Git commands but want to understand how continuous integration (CI) happens in reality? Or perhaps you want to optimize your daily actions? This course will provide you with practical continuous integration skills using a GitHub repository. This course is not designed as a wizard that you can simply click through; on the contrary, you will be performing the same actions […]
I have worked in IT for over 20 years, but I never got around to working with containers. Theoretically, I understood how they are structured and how they function. However, since I had never encountered them in practice, I wasn't sure how exactly the gears turn under the hood. Furthermore, I had no idea […]
Since August 2017, when Cisco acquired Viptela, Cisco SD-WAN has become the main technology for organizing distributed corporate networks. Over the past three years, the SD-WAN technology has undergone numerous changes in both qualitative and quantitative aspects. This has significantly expanded its capabilities and added support on traditional routers such as Cisco ISR 1000, ISR 4000, ASR 1000, and […]
My name is Pyotr Zaitsev, I am the CEO and founder of Percona, and I want to talk about how we transitioned from open-source solutions to Database as a Service; what approaches exist for deploying databases in the cloud; how Kubernetes can replace DBaaS by eliminating vendor lock-in while maintaining the simplicity of a DBMS as a service. This article is based on a presentation at the @Databases Meetup […]
For several years now, I have been supporting 10 workstations in the university running on Microsoft Windows 8.1. Primarily, this support involves installing necessary software for the educational process and ensuring overall functionality. Each workstation has 2 users: Administrator and Student. The Administrator has full control, while the Student cannot install software. To avoid overburdening myself […]
Vector, designed for collecting, transforming, and sending logs, metrics, and event data. → Github Written in Rust, it features high performance and low memory consumption compared to its counterparts. Additionally, considerable attention has been given to correctness features, specifically the ability to buffer unsent events on disk and file rotation. Architecturally, Vector […]
Is it time to consider migration? This question inevitably arises among colleagues who use Lotus as their email client or document management system. The request for migration (based on our experience) can come from various levels of the organization: from top management to users, especially if there are many of them. Here are some reasons why migrating from Lotus to Exchange is not so […]
When one fine day the boss raises the question: 'Why do some have remote access to their work computer without obtaining additional permissions?', the task arises to 'close' this loophole. There are plenty of applications for remote network management: Chrome Remote Desktop, AmmyAdmin, LiteManager, TeamViewer, Anyplace Control, and others. If 'Chrome Remote Desktop' has an official manual to combat the presence of […]
The fourth stage of emotional response to change is depression. In this article, we will share our experience of navigating the longest and least pleasant stage – the changes in the company's business processes to achieve compliance with the ISO 27001 standard. Anticipation The first question we asked ourselves after selecting the certifying body and consultant was how much time we would realistically need for […]
At a recent online meeting of the IETF IPv6 Ops group, Google network engineer Zhenya Linkova discussed the project to transition Google's corporate network to IPv6-only. One of the steps included converting the guest network to IPv6-only. To access legacy Internet, NAT64 was used, and for DNS – DNS64 on public Google DNS. Naturally, DHCP6 was not used, only […]
To prepare for document transformation, we will need LibreOffice, uwsgi-python, pylokit, and webob. A ready-made image can also be used, but that is just for starting the uWSGI server, while we'll use nginx to connect to the uWSGI server. The simplest uWSGI application in Python consists of an application function with two arguments: environ and start_response import os # import import pylokit # necessary imports import tempfile […]