| What | How | Should Follow | Not to Use |
| Controller | singular | PostController | PostsController |
| Route | plural | posts/1 | post/1 |
| Named route | snake_case with dot notation | users.show_active | users.show-active, show-active-users |
| Model | singular | User | Users |
| hasOne or belongsTo relationship | singular | postComment | postComments, post_comment |
| All other relationships | plural | postComments | postComment, post_comments |
| Table | plural | post_comments | post_comment, postComments |
| Pivot table | singular model names in alphabetical order | post_user | user_post, posts_users |
| Model property | snake_case | $model->created_at | $model->createdAt |
| Foreign key | singular model name with _id suffix | post_id | PostId, id_post, posts_id |
| Primary key | – | id | custom_id |
| Migration | – | date_create_posts_table | 2019_05_08_posts |
| Method | camelCase | getAll | get_all |
| Method in resource controller | table | store | savePost |
| Variable | camelCase | $postsWithAuthor | $posts_with_creator |
Docker
Reference
| Command | description |
|---|---|
| systemctl start docker systemctl status docker systemctl stop docker docker info docker version | start docker view docker process status stop docker view docker info view docker version |
| docker images docker image ls docker search ubuntu docker pull ubuntu docker rmi ubuntu docker image rm | view image list view image list ( > v1.13) search for an image download an image delete an image delete an image ( > v1.13) |
| docker ps -a docker ps -l docker container ls docker container rm <cid> docker rm <cid> | view running containers view all containers view containers ( > v1.13) delete container with id <cid> delete container with id <cid> |
| docker run imagename docker run –name bla imagename docker run -it ubuntu docker start <cid> docker stop <cid> docker stop $(docker ps -q) docker stats <cid> docket top <cid> docker kill<cid> | create and run a container create and run a named container create interactive session start an existing container stop a container stop all running containers view running stats of a container view top stats of a container kill a running container |
| docker attach <cid> docker exec -it ubuntu bash | reconnect to a running container Open a new terminal window |
How to detach
| How container was started | how to detach |
|---|---|
| -t and -i is used to launch the container | ctrl + P and then ctrl + Q |
| -t is used to launch the container | ctrl + C |
| otherwise | pkiill |
Examples
sudo docker run --detach \
--hostname gitlab.example.com \
--publish 443:443 --publish 80:80 --publish 22:22 \
--name gitlab \
--restart always \
--volume /srv/gitlab/config:/etc/gitlab \
--volume /srv/gitlab/logs:/var/log/gitlab \
--volume /srv/gitlab/data:/var/opt/gitlab \
gitlab/gitlab-ce:latestReferences:
Free and public dns servers (2019)
| Provider | Primary DNS | Secondary DNS |
|---|---|---|
| CenturyLink (Level3) | 209.244.0.3 | 209.244.0.4 |
| Verisign | 64.6.64.6 | 64.6.65.6 |
| 8.8.8.8 | 8.8.4.4 | |
| Quad9 | 9.9.9.9 | 149.112.112.112 |
| DNS.WATCH | 84.200.69.80 | 84.200.70.40 |
| Comodo Secure DNS | 8.26.56.26 | 8.20.247.20 |
| OpenDNS Home | 208.67.222.222 | 208.67.220.220 |
| GreenTeamDNS | 81.218.119.11 | 209.88.198.133 |
| SafeDNS | 195.46.39.39 | 195.46.39.40 |
| OpenNIC | 198.206.14.241 | 172.98.193.42 |
| SmartViper | 208.76.50.50 | 208.76.51.51 |
| Dyn | 216.146.35.35 | 216.146.36.36 |
| FreeDNS | 45.33.97.5 | 37.235.1.177 |
| Alternate DNS* | 198.101.242.72 | 23.253.163.53 |
| Yandex.DNS | 77.88.8.8 | 77.88.8.1 |
| UncensoredDNS | 91.239.100.100 | 89.233.43.71 |
| Hurricane Electric | 74.82.42.42 | |
| puntCAT | 109.69.8.51 | |
| Neustar | 156.154.70.1 | 156.154.71.1 |
| Cloudflare | 1.1.1.1 | 1.0.0.1 |
| Fourth Estate | 45.77.165.194 | |
| CleanBrowsing | 185.228.168.9 | 185.228.169.9 |
* Automatic ad blocking
enable cors (standard ee)
Simply create the filter:
import java.io.IOException;
import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ContainerResponseContext;
import javax.ws.rs.container.ContainerResponseFilter;
import javax.ws.rs.ext.Provider;
@Provider
public class RestResponseFilter implements ContainerResponseFilter{
@Override
public void filter(ContainerRequestContext requestContext, ContainerResponseContext responseContext) throws IOException{
responseContext.getHeaders().putSingle("Access-Control-Allow-Origin", "*");
responseContext.getHeaders().putSingle("Access-Control-Allow-Credentials", "true");
responseContext.getHeaders().putSingle("Access-Control-Allow-Methods", "GET, POST, DELETE, PUT");
responseContext.getHeaders().putSingle("Access-Control-Allow-Headers", "Content-Type, Accept");
}
}
References
CREATE A USER IN MYSQL
Create a user in MySQL with full rights:
CREATE USER ‘qweqwe’@’localhost’ IDENTIFIED BY ‘qweqwe’;
GRANT ALL PRIVILEGES ON * . * TO ‘qweqwe’@’localhost’;
max number of watches
You can increase the max number of watches with the following commands:
- sudo gedit /proc/sys/fs/inotify/max_user_watches
- add the line: fs.inotify.max_user_watches=524288
- sudo sysctl -p
Reload component when same route is requested
The simplest solution is to add a :key attribute to :
<router-view :key="$route.fullPath"></router-view>See:
https://laracasts.com/discuss/channels/vue/vue-2-reload-component-when-same-route-is-requested
Mind fitness links
Monolog log levels
use Illuminate\Support\Facades\Log;
Log::emergency($message);
Log::alert($message);
Log::critical($message);
Log::error($message);
Log::warning($message);
Log::notice($message);
Log::info($message);
Log::debug($message);
apt upgrade – too many errors (gconf)
Under normal circumstances, this should never happen in a clean installation.
However you may encounter it in Linux Mint 19.1+
The solution is simple:
sudo dpkg --configure -aReferences:
