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Neocom/notep-TP
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### Note d'installation TP neocom
root Mysql password + phpmyadmin : +M?ex3rr!Y%)Ua_#
Replication Mysql OK
Montage NFS OK
Firewalling OK
Autorisation sur phpmyadmin uniquement pour l'ip 88.177.222.27 OK
PhpMyadmin OK
Commencer par
- editer le /etc/hosts des deux machines pour plus de faciliter.
xxx.xxx.xxx.xxx vpsxxxx.ovh.net server1
xxx.xxx.xxx.xxx vpsxxxx.ovh.net server2
Reproduire sur l'autre noeud à l'identique.
## Création d'un export NFS
- server2 : apt install nfs-kernel-server
- server2 : mkdir -p /mnt/nfs/www (Ici se trouveront les sources)
- Ajouter dans /etc/export sur node (secondaire)
/mnt/nfs/www 51.38.178.107(rw,sync,no_subtree_check,sync,no_root_squash)
Redemarrer nfs-kernel-server
systemctl restart nfs-kernel-server
- Install NFS Client sur server1
apt install nfs client
showmount -e [[IPNode2]]
mount -t nfs mount -t nfs 51.38.178.108:/mnt/nfs/www /usr/share/nginx/nfs/html/
### Installation stack nginx php7.0 mysql-server
Client : apt install nginx php7.0 phpmyadmin [[Ce dernier install tout un tas de dépendance PHP]]
Client : mount -t nfs 51.38.178.108:/mnt/nfs/www /usr/share/nginx/nfs/html/
## Installation MariaDB sur Node2
apt get install mariadb-server
Sur node server :
Editer :
/etc/mysql/mariadb.conf.d/50-server.cnf
bind-address = 51.38.178.107 [IP de la machine]
replicate-do-db=codepostaux
log-bin
root@vps539669:/usr/share/nginx/nfs/html# certbot --nginx certonly --register-unsafely-without-email -d vps539669.ovh.net
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator nginx, Installer nginx
Obtaining a new certificate
An unexpected error occurred:
There were too many requests of a given type :: Error creating new order :: too many certificates already issued for: ovh.net: see https://letsencrypt.org/docs/rate-limits/
Please see the logfiles in /var/log/letsencrypt for more details.
root password + phpmyadmin : +M?ex3rr!Y%)Ua_#
Impossible d'uploader
Installation firewall
ufw allow ssh
ufw allow http
ufw allow https
ufw allow mysql (car écoute sur socket ip)
ufw enable
1 - Noeud deux : apt install nfs-kernel-server
2 - Node 2 : mkdir -p /mnt/nfs/www
/mnt/nfs/www 51.38.178.107(r,no_subtree_check,sync,no_root_squash)
3- Install NFS Client apt install nfs client
4 - Client : mkdir -p /usr/share/nginx/nfs/html
5- Client : apt-install nginx
6 - Client : mount -t nfs 51.38.178.108:/mnt/nfs/www /usr/share/nginx/nfs/html/
Install Ngnix
Install MariadB Node 1 + 2
root password : +M?ex3rr!Y%)Ua_#

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# tmux shortcuts & cheatsheet
start new:
tmux
start new with session name:
tmux new -s myname
attach:
tmux a # (or at, or attach)
attach to named:
tmux a -t myname
list sessions:
tmux ls
<a name="killSessions"></a>kill session:
tmux kill-session -t myname
<a name="killAllSessions"></a>Kill all the tmux sessions:
tmux ls | grep : | cut -d. -f1 | awk '{print substr($1, 0, length($1)-1)}' | xargs kill
In tmux, hit the prefix `ctrl+b` (my modified prefix is ctrl+a) and then:
## Sessions
:new<CR> new session
s list sessions
$ name session
## <a name="WindowsTabs"></a>Windows (tabs)
c create window
w list windows
n next window
p previous window
f find window
, name window
& kill window
## <a name="PanesSplits"></a>Panes (splits)
% vertical split
" horizontal split
o swap panes
q show pane numbers
x kill pane
+ break pane into window (e.g. to select text by mouse to copy)
- restore pane from window
⍽ space - toggle between layouts
<prefix> q (Show pane numbers, when the numbers show up type the key to goto that pane)
<prefix> { (Move the current pane left)
<prefix> } (Move the current pane right)
<prefix> z toggle pane zoom
## <a name="syncPanes"></a>Sync Panes
You can do this by switching to the appropriate window, typing your Tmux prefix (commonly Ctrl-B or Ctrl-A) and then a colon to bring up a Tmux command line, and typing:
```
:setw synchronize-panes
```
You can optionally add on or off to specify which state you want; otherwise the option is simply toggled. This option is specific to one window, so it won’t change the way your other sessions or windows operate. When you’re done, toggle it off again by repeating the command. [tip source](http://blog.sanctum.geek.nz/sync-tmux-panes/)
## Resizing Panes
You can also resize panes if you don’t like the layout defaults. I personally rarely need to do this, though it’s handy to know how. Here is the basic syntax to resize panes:
PREFIX : resize-pane -D (Resizes the current pane down)
PREFIX : resize-pane -U (Resizes the current pane upward)
PREFIX : resize-pane -L (Resizes the current pane left)
PREFIX : resize-pane -R (Resizes the current pane right)
PREFIX : resize-pane -D 20 (Resizes the current pane down by 20 cells)
PREFIX : resize-pane -U 20 (Resizes the current pane upward by 20 cells)
PREFIX : resize-pane -L 20 (Resizes the current pane left by 20 cells)
PREFIX : resize-pane -R 20 (Resizes the current pane right by 20 cells)
PREFIX : resize-pane -t 2 20 (Resizes the pane with the id of 2 down by 20 cells)
PREFIX : resize-pane -t -L 20 (Resizes the pane with the id of 2 left by 20 cells)
## Copy mode:
Pressing PREFIX [ places us in Copy mode. We can then use our movement keys to move our cursor around the screen. By default, the arrow keys work. we set our configuration file to use Vim keys for moving between windows and resizing panes so we wouldn’t have to take our hands off the home row. tmux has a vi mode for working with the buffer as well. To enable it, add this line to .tmux.conf:
setw -g mode-keys vi
With this option set, we can use h, j, k, and l to move around our buffer.
To get out of Copy mode, we just press the ENTER key. Moving around one character at a time isn’t very efficient. Since we enabled vi mode, we can also use some other visible shortcuts to move around the buffer.
For example, we can use "w" to jump to the next word and "b" to jump back one word. And we can use "f", followed by any character, to jump to that character on the same line, and "F" to jump backwards on the line.
Function vi emacs
Back to indentation ^ M-m
Clear selection Escape C-g
Copy selection Enter M-w
Cursor down j Down
Cursor left h Left
Cursor right l Right
Cursor to bottom line L
Cursor to middle line M M-r
Cursor to top line H M-R
Cursor up k Up
Delete entire line d C-u
Delete to end of line D C-k
End of line $ C-e
Goto line : g
Half page down C-d M-Down
Half page up C-u M-Up
Next page C-f Page down
Next word w M-f
Paste buffer p C-y
Previous page C-b Page up
Previous word b M-b
Quit mode q Escape
Scroll down C-Down or J C-Down
Scroll up C-Up or K C-Up
Search again n n
Search backward ? C-r
Search forward / C-s
Start of line 0 C-a
Start selection Space C-Space
Transpose chars C-t
## Misc
d detach
t big clock
? list shortcuts
: prompt
## Configurations Options:
# Mouse support - set to on if you want to use the mouse
* setw -g mode-mouse off
* set -g mouse-select-pane off
* set -g mouse-resize-pane off
* set -g mouse-select-window off
# Set the default terminal mode to 256color mode
set -g default-terminal "screen-256color"
# enable activity alerts
setw -g monitor-activity on
set -g visual-activity on
# Center the window list
set -g status-justify centre
# Maximize and restore a pane
unbind Up bind Up new-window -d -n tmp \; swap-pane -s tmp.1 \; select-window -t tmp
unbind Down
bind Down last-window \; swap-pane -s tmp.1 \; kill-window -t tmp
## Resources:
* [tmux: Productive Mouse-Free Development](http://pragprog.com/book/bhtmux/tmux)
* [How to reorder windows](http://superuser.com/questions/343572/tmux-how-do-i-reorder-my-windows)
## Notes:
*
## Changelog:
* 1411143833002 - Added [toggle zoom](#PanesSplits) under Panes (splits) section.
* 1411143833002 - [Added Sync Panes](#syncPanes)
* 1414276652677 - [Added Kill all tmux sessions ](#killAllSessions)
* 1438585211173 - [corrected create and add next and previus thanks to @justinjhendrick](#WindowsTabs)
## Request an Update:
We Noticed that our Cheatsheet is growing and people are coloberating to add new tips and tricks, so please tweet to me what would you like to add and let's make it better!
* Twitter: [@MohammedAlaa](http://twitter.com/MohammedAlaa)
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