I will add more resources. Please return to find something new! Study Resource golangr Golang Cheat Sheet Codecademy - go Books Head First Go (got my introduction with this) Thoughts on Head-first Go: This book was published before Generics was introduced in Go, so there’s no introduction to Generics. The author discussed unbuffered channels but gave a short introduction to buffered channels. Exercises golangr exercises exercism-go gophercises
I often consider myself “Lucky” to be born in this era; the era of being connected, knowledge sharing and collaboration. While scrolling through the internet, I found so many well-written thoughts and blogs that should be shared. In my daily life, I’m trying to be a DevOps practitioner, to be a gopher and sharpen my knowledge of the basics. Here, I will share some resources, i.e., blogs I find amazing. Whether you’re a DevOps practitioner, SRE, Linux System Administrator or believe in self-development - these resources will significantly help you....
Nginx uses a few different directives to control system logging. The one included in the core module is called error_log. error_log directive Syntax: error_log log_file log_level. log_file: specifies the file where the logs will be written. log_level: specifies the lowest level of logging to be recorded. Logging levels emerg: emergency situations. alert: crit: error: warn: notice: info debug: Example: error_log /var/log/nginx/error.log crit; # Don't log anything error_log /dev/null crit; error_log is part of the core module; the access_log is part of the HttpLogModule....
Logrotate is a system utility that manages the automatic rotation and compression of log files. logrotate --version man logrotate Configuration can be found generally in two places: /etc/logrotate.conf: contain some default settings, sets up rotation for a few logs that are not owned by any system packages. Also uses an include statement to pull in configuration from any file from the logrotate directory. /etc/logrotate.d: files for packages. By default, logrotate.confwill configure weekly log rotations, with log files owned by the root user and the syslog group....
jounralctl is the command line tool that let us interact with the journal logs. Default location of journald logs is /var/log/journal directory. Type journalctl in the terminal, it will show the journal logs in chronological order. journalctl --no-pager will display entire logs directly on the screen. journalctl -n 25: will display most recent 25 lines of the logs. journalctl -f: view logs in real time. jouralctl --utc: display logs in UTC time....
Service management sudo systemctl start app.service sudo systemctl stop app.service sudo systemctl restart app.service sudo systemctl reload app.service sudo systemctl reload-or-restart app.service sudo systemctl enable app.service sudo systemctl disable app.service Checking status systemctl status app.service systemctl is-active app.service systemctl is-enabled app.service systemctl is-failed app.service System state overview # see a list of active units systemctl list-units systemctl # returns same as above systemctl list-units --all systemctl list-units --all --state=inactive systemctl list-units --type=service To see every available units in the system paths (including those that systemd has not attempted to load):...
As I edit system configuration files daily on the cloud, my number one choice for a text editor is Vim. So here’s a post about some standard settings: Will work on NeoVim too! " Number-related settings set number " Display line numbers set relativenumber " Display relative line numbers set signcolumn=yes " Always show the sign column " Search-related settings set hlsearch " Highlight search results set incsearch " Highlight search matches as you type set ignorecase " Ignore case when searching set smartcase " Ignore case only if search pattern is all lowercase " Appearance-related settings set laststatus=2 " Always show status line set cursorline " Highlight current line " set colorcolumn=80 " Display a vertical line at column 80 to help with line length set noerrorbells " Disable error bells and visual bells set wrap " Wrap long lines visually set linebreak " Break long lines at word boundaries " Window-related settings set splitright " Split windows to the right set splitbelow " Split windows below set scrolloff=5 " Keep 5 lines above/below cursor when scrolling set clipboard+=unnamed " Copy text to system clipboard set mouse=a " Enable mouse support " Completion-related settings set wildmenu " Show command-line completion options in a menu set wildmode=list:longest,full " Highlight and complete the longest common part of the options " Mode-related settings set showmode " Show current mode (insert/visual/command) in status line " Folding-related settings set foldmethod=indent " Use indent-based folding set foldlevelstart=99 " Start with all folds open " Wrapping-related settings set whichwrap+=<,>,h " Allow wrapping past the beginning or end of a line " Create a horizontal split with Ctrl+s nnoremap <C-s> :split<CR> " Create a vertical split with Ctrl+v nnoremap <C-v> :vsplit<CR> " Create a new horizontal split and start editing a new file with Ctrl+n nnoremap <C-n> :split<CR>:enew<CR> " Create a new vertical split and start editing a new file with Ctrl+m nnoremap <C-m> :vsplit<CR>:enew<CR> Thanks!...
As I am highly dependent on official documentation, I found that Apache Solr maintain an awesome documentation from which I learned a lot. Setting up SSL can be found here. I am writing this for easier step by step setup. Happy Searching! Generate certificate & key From the official documentation, you can generate a self-signed certificate to test your setup. But for the trusted authority, generate a certificate and convert it to ....