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Mastering Development System & Network

open multiple ssh session in a predefined layout

Is there a way on Windows 10 to open multiple SSH connections in a predefined window layout? I have been using MTPutty for this, and it works well, except that I have to configure the layout every time manually. Ideally I could be able to login and run a command automatically in each connection, but […]

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Mastering Development System & Network

How to make WMI Win32_OperatingSystem stop changing Name value?

Windows Server 2019 Standard. WMI property "\ROOT\CIMV2\Win32_OperatingSystem\Name" spontanneously and randomly changes its language during the day. Sometimes it’s "Microsoft Windows Server 2019 Standard" and sometimes it’s "Майкрософт Windows Server 2019 Standard". How do we stop it from doing so?

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Mastering Development System & Network

When a gMSA password is automatically reset by AD, does it loose its access to network resources?

I have many instances of an application installed on a bunch of application servers that consists on an IIS Site (.NET application), a Windows Service and an SQL Database hosted on separate SQL Servers (each instance has its own DB). Each application instance has its own domain user used to run the App Pool and […]

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Mastering Development System & Network

Strange Postfix logwatch log summary on my Ubuntu 18.04 Server (Local/Physical Server)

I would be very thankful if someone could please help me explaining this logwatch summary of my postfix installation on my ubuntu 18.04 LTS. I have googled a lot but could not find anything relevant to my particular issue. The entire block of report/log is confusing me as in I don’t understand which log says […]

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Mastering Development System & Network

How to install nginx-module-brotli?

I have a server with ubuntu 20.04 I installed brotli on it, but I am unable to install nginx-module-brotli for my nginx server. Here are the commands I use to install Brotli for Nginx : $ wget https://nginx.org/download/nginx-1.17.10.tar.gz $ tar zxvf nginx-1.17.10.tar.gz $ git clone https://github.com/google/ngx_brotli.git $ cd nginx-1.17.10 $ ./configure –with-compat –add-dynamic-module=../ngx_brotli $ make […]

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Mastering Development System & Network

Remote NAS SSH Access

My LenovoEMC NAS uses SFTP over SSH on port 22 and it is accessible from the local network but I cannot access it remotely. The port tests as open so the firewall’s port forwarding is properly configured but does SSH require some other port too?

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Mastering Development System & Network

How do I configure Postfix to send emails with ProtonMail Bridge?

I have an Ubuntu 20.04 server and I followed this tutorial to install ProtonMail Bridge : https://pychao.com/2020/06/10/update-on-using-protonmail-bridge-on-headless-wordpress-linux-servers/ I have a Drupal 8 site on my server and it is sending emails correctly with ProtonMail Bridge. Now I want Postfix to use ProtonMail Bridge to send server emails (Logwatch, Monit, …). I followed the following tutorial […]

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Mastering Development System & Network

“netdom verify” command failed to complete successfully

I look after a Windows network which has two Hyper-V servers in a failover cluster using DAS, accessible by both hosts with two DCs (both on WS2019, one on each host). We have been having issues with our SDC running on the second host where it was giving us the below error: The security database […]

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Mastering Development System & Network

StrongSwan config issue: no matching peer config found

I am trying to establish a VPN between my router (running OpenWrt) and my smartphone using IPsec. I followed the guide at https://openwrt.org/docs/guide-user/services/vpn/ipsec/strongswan/roadwarrior As far as I can tell most things are working great, but I can’t establish the connection and permanently getting the following errors on the router, when I click the "connect" button […]

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Mastering Development System & Network

dns configuration with multiple subdomains and servers?

will this configuration allow to use one domain name (domain1.tld) to access two vps hosted on the same provider (prod and dev)? *.domain1.tld A <vps prod IP> *.dev.domain1.tld A <vps dev IP> will this configuration allow to point another domain (domain2.tld) to a subdomain (api) of domain1.tld without any A record? *.domain2.tld CNAME *.api.domain1.tld how […]