...already entered something into the next field before Unpoly updates that field with a server response, discarding your changes. The steps I wait for active ajax requests to complete (if...
Du weißt, was eine systemd unit ist Du weißt, wie du einen Service konfigurierst Du weißt, wie du units abhängig vom Zeitpunkt und/oder anderen Events im System laufen...
...den gleichen Inhalten verwenden z.b. man systemd.service oder man systemd.timer Wikipedia Tutorialspoint Freedesktop Systemd Service ArchWiki Systemd Timers man loginctl ArchWiki systemd-networkd man file-hierarchy Übungen Erstelle dir eine...
...Rails: How to write custom email interceptors Check if you have a local mail server listening Ensure that e-mail arrives at the inbox without being blocked
...used as a baseline within research to compare approach to each other. This can serve as a ground for further research into this topic within this problem domain. Implementation
Um Server Infrastrukturen schnell und reproduzierbar konfigurieren zu können setzt man auf so genannte Configuration Management Lösungen. Die bekanntesten sind Puppet, Chef, Saltstack und Ansible. Dabei hat Ansible den größten...
defined by ActionDispatch::ExceptionWrapper.rescue_responses. In the event of an unexpected internal server error, the exception that caused the error will still be raised within the test so...
We use the whenever gem to automatically update the crontab of the servers we deploy to. By default, whenever will update all servers with a matching role (we use the...
...and could use a "quick" transition to give a dynamic feel. Finally, animations that serve to underline some function like a move-to-trash can use the "distinct" duration, which...
...IDENTIFIED BY 'some_password'; GRANT REPLICATION SLAVE ON *.* TO 'replicator'@'%'; Adjust MySQL configuration : Edit /etc/mysql/my.cnf: server-id = 1 log_bin = /var/log/mysql/mysql-bin.log replicate-do-db = some_project_production replicate-do-db...
...other_project_production replicate-ignore-db = mysql server-id needs to be unique among all connected master and slave servers. When replicate-do-db is provided only the chosen databases...
...work with other Linux distros, as long as you are using the Xorg display server. It likely won't work on Wayland. The script assumes that external display order is...
...more processes than just your tests while your test suite is running: The Rails server booted by each test process (in a separate process) The Chrome browser started by each...
Your IDE Your window environment Background services Fixing flaky tests Running fewer test processes is only a bandaid. Your test suite has issues with uncontrolled timing issues. Reducing...
...APIs versus "asynchronous" APIs? Why does fetch() not simply return the response from the server? Why is asynchronous code such a big issue in JavaScript (as opposed to the code...
You can either implement your own API backend or use the free service at api.random.org. If you chose the the latter, create an account for it and click...
...be evaluated when running middleman for the specific environment. Default for the local dev server is development, default for building is production. Activate an environment with -e staging or --environment...
...be "built", too. However, testing in :build mode oddly # takes thrice as long as :server: mode, so you might try and skip this # setting for faster test runs. config[:mode...
...SEARCHKICK_CLIENT_TYPE).to_sym ENV['OPENSEARCH_URL'] ||= case Rails.env when 'production' OPENSEARCH_PRODUCTION_SERVER when 'staging' OPENSEARCH_STAGING_SERVER else 'http://opensearch:9200' # docker container name end
...setup the opensearch cluster. When the cluster exists, open a console on the staging server with the ENV-variable SEARCHKICK_CLIENT_TYPE set to "opensearch". SEARCHKICK_CLIENT_TYPE=opensearch b...
...img tag in favor of lazy-loading, make sure you have a strategy to serve crawlers, if you need to support them. When the lazy-loaded image is inserted into...
...Session Management Ohne (9.4) JSON Web Tokens (10) Federation / Single-Sign on (11) Serverseitige Angriffe (12) Clientseitige Angriffe (13) Clientseitige Schutzmaßnahmen Read through the most known security issues in web...
...HTML code injection Boot up a second Rails application on another port (e.g. rails server -p 4000 to boot it on http://localhost:4000). Assume this is a second domain...
...Aufgaben mit einzelnen Schritten werden in Scripts abgelegt (Bash, Python, Ruby, Go) Konfiguration von Servern verwaltet man mit Configuration Management (Ansible, Puppet, Chef, Saltstack) Cloud Infrastukturen provisioniert man mit Infrastructure...
...on productivity. Advantages No added effort: tests need to be written anyway. Test heads serve as todo lists. You'll always know what is finished and what is left to...
...this use case, any good network-client gem like the http or httpclient gems serve us just well most of the time. The examples below use the http gem ("http.rb...
...ms, then animate) When you wait for I/O most of the time (web servers, crawlers) Most current and future HTML5 browser APIs have async signatures. Async frontend example
OpenSSL::SSL::SSLError: SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed Here is how to fix that in your application.
...This is only okay-ish for testing something in development. Note that there are services like badssl.com to test against weird SSL behavior. Self-signed certificates Talking to a host...
...possible that the certificate chain is in the wrong order. Make sure that the server certificate is the first. This is also necessary for nginx. It is recommended to pipe...
...modulus the same syntax applies to RSA and ECDSA certificates: openssl pkey -pubout -in server.key | openssl sha1 openssl req -pubkey -noout -in server.csr | openssl sha1 openssl x509 -pubkey -noout -in...
...their custom DSL and use Rake instead. For connecting with and operating on the servers, they bring a new gem SSHKit which does the heavy lifting. It's SSHKit's...
...user setting any more. Set the deploy user directly as an option to the server directive. Also, the roles syntax has become more ruby'esque, and the first server will...
...Discuss with your mentor Instead of migrations, could we simply log into the production server's SQL console and alter tables there whenever we need a change?