Jannis Schönleber joennlae

Sample config for 2 million web socket connection

    sysctl -w fs.file-max=12000500
    sysctl -w fs.nr_open=20000500
    # Set the maximum number of open file descriptors
    ulimit -n 20000000

    # Set the memory size for TCP with minimum, default and maximum thresholds 
 sysctl -w net.ipv4.tcp_mem='10000000 10000000 10000000'

Building a complete GNU toolchain

Things required:

Linux headers: https://cdn.kernel.org/pub/linux/kernel/
Binutils: https://www.gnu.org/software/binutils/
GCC: https://www.gnu.org/software/gcc/
glibc: https://www.gnu.org/software/libc/

Environment variables

An opinionated nextcloud ignore list for developers (sync-exclude.lst)

The latest nextcloud server versions will have ransomware detection automatically enabled, meaning that syncing common developer file types (e.g. .lock) will return errors.

Fatal webdav OCA\DAV\Connector\Sabre\Exception\Forbidden: Ransomware file detected. Prevented upload of ..py/bokeh/secrets.tar.enc because it matches extension pattern ".enc"

If you are syncing complex, nested work directories as a developer, the following

Steps to change the URL of Rancher installation and switch from a self-signed certificate to a certificate signed by recognized CA.

Change the Rancher server-url setting to the new URL:
- Navigate to https://<old_rancher_hostname>/g/settings/advanced
- Edit server-url to https://<new_rancher_hostname>
Clear the private CA certificate for the old certificate
- Navigate to https://<old_rancher_hostname>/g/settings/advanced
- Next to cacerts click context menu -> View in API
- Click Edit
- Clear the content of the value field

	// Compiled by morty-0.9.0 / 2023-03-16 10:49:40.527983167 +01:00

	// Copyright 2019 ETH Zurich and University of Bologna.
	// Copyright and related rights are licensed under the Solderpad Hardware
	// License, Version 0.51 (the "License"); you may not use this file except in
	// compliance with the License. You may obtain a copy of the License at
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	// this License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
	// CONDITIONS OF ANY KIND, either express or implied. See the License for the