Fahad Ahammed's questions

First of all, I am not that experienced in networking. I have three NIC in my system.

My netplan settings:

network:
ethernets:
    enp5s0:
        dhcp4: true
    enp3s0:
        dhcp4: false
        addresses: [X.X.X.251/32]
        nameservers: 
          addresses: [8.8.8.8, 1.1.1.1]
        routes:
          - to: 0.0.0.0/0
            via: X.X.X.249
            on-link: true
    enp2s0:
        dhcp4: false
        addresses: [X.X.X.252/32]
        nameservers:
          addresses: [8.8.8.8, 1.1.1.1]
        routes:
          - to: 0.0.0.0/0
            via: X.X.X.249
version: 2

Route Table

default via X.X.X.249 dev enp3s0 proto static onlink 
default via 192.168.10.1 dev enp5s0 proto dhcp src 192.168.10.99 metric 100 
10.0.0.0/16 dev lxdbr0 proto kernel scope link src 10.0.0.1 linkdown 
192.168.10.0/23 dev enp5s0 proto kernel scope link src 192.168.10.99 
192.168.10.1 dev enp5s0 proto dhcp scope link src 192.168.10.99 metric 100

enp5s0 is connected to local router. enp3s0 is public IP that I by default wanted to route through.

enp2s0 is the one by which I want to set the IP X.X.X.252 and want to attach it with a specific lxc container.

I want to get into lxc container If I want to ssh into X.X.X.252 or other traffic.

How Can I do that here?

$ lxc network list

+--------+----------+---------+-------------+---------+
|  NAME  |   TYPE   | MANAGED | DESCRIPTION | USED BY |
+--------+----------+---------+-------------+---------+
| enp2s0 | physical | NO      |             | 0       |
+--------+----------+---------+-------------+---------+
| enp3s0 | physical | NO      |             | 0       |
+--------+----------+---------+-------------+---------+
| enp5s0 | physical | NO      |             | 0       |
+--------+----------+---------+-------------+---------+
| lxdbr0 | bridge   | YES     |             | 1       |
+--------+----------+---------+-------------+---------+

If I attach that to the container,

$ lxc network attach enp2s0 container eth0

$ lxc list
+--------+---------+-----------------------+------+------------+-----------+
|  NAME  |  STATE  |         IPV4          | IPV6 |    TYPE    | SNAPSHOTS |
+--------+---------+-----------------------+------+------------+-----------+
| container | RUNNING | 192.168.11.241 (eth0) |      | PERSISTENT | 0         |
+--------+---------+-----------------------+------+------------+-----------+

It doesn't work and instead it routes through local network.

Please guide me where and what should I change for that?

I have a python(flask) webapp. It is accessible by nginx in front of it.

Let, my domain is: http://domain.com

My web app is running on http://127.0.0.1:5000

nginx config:

upstream fapp {
        server 127.0.0.1:5000;
}

server {
    listen 80;
    server_name domain.com www.domain.com;

    location {                                                         
          proxy_set_header X-Forwarded-Host $host;                     
          proxy_set_header X-Forwarded-Server $host;                   
          proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; 
          proxy_pass http://fapp/;                               
          proxy_intercept_errors on;                                   
    }
}

This app has two functionality or route:

1. http://127.0.0.1/dataone/1
2. http://127.0.0.1/datatwo/1

Let, first one will give a page with some graphical details of data id 1 and second one will give the details without any graphical view.

What I want is a way if I hit http://domain.com/data/1 , nginx will give me data from either "http://127.0.0.1/dataone/1" or "http://127.0.0.1/datatwo/1".

How can I do that?

UPDATE 1: From the clue of @Oldskool, I did look at split clients module.

    upstream fapp {
            server 127.0.0.1:5000;
    }


split_clients "${remote_addr}" $mydata {
        50%     "dataone";
        50%     "datatwo";
        *       "";
}


    server {
        listen 80;
        server_name domain.com www.domain.com;

        location {                                                         
              proxy_set_header X-Forwarded-Host $host;                     
              proxy_set_header X-Forwarded-Server $host;                   
              proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; 
              proxy_pass http://fapp/;                               
              proxy_intercept_errors on;                                   
        }


location /data/ {
                proxy_set_header X-Forwarded-Host $host;
                proxy_set_header X-Forwarded-Server $host;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_pass http://fapp/${mydata}/;
                proxy_intercept_errors on;
}
}

But problem is if i access http://domain.com/data/1 or http://domain.com/data/35 or anything on that number is not working, it redirects to the url http://fapp/dataone/1 or 35. Is there anymore things to add or I am doing it wrong?

I have a git server. Not gitlab or something similar, bare git server. I wanted to create git hook to decline push on master branch for certain users. I tried to do that with below one.

#!/bin/bash
if [ "$1" == refs/heads/master ];
then
    CEMAIL=$(git log -1 --format=format:%ce HEAD)

    echo $CEMAIL

    if [ "$CEMAIL" != [email protected] ] && [ "$CEMAIL" != [email protected] ];
    then
        echo "-----------------------------------------------------"
        echo "WARNING: You are not allowed to Push in MASTER branch !"
        echo "-----------------------------------------------------"
        exit 1
    fi
fi

Users without above email should not be able to push on master branch. But It is not working as expected. Can you guys please guide me about it ?

UPDATE: When i ([email protected]) it will allow me to push to the branch. And then if i ask someone else to push to the branch other than me and jake, then it allows too. It picks the last users email.

I have two Backend server running on 192.168.0.101:8080 and 192.168.0.102:8080.

I have nginx running on 192.168.0.111:80, I want to force nginx to reverse traffic in specific backend srever by IP.

geo $upstream {
        192.168.0.150 backend-1;
        192.168.0.250 backend-2;
        default backend-1;
}

upstream backend-1 {
   ip_hash;
   server 192.168.0.101:8080;
}

upstream backend-2 {
   ip_hash;
   server 192.168.0.102:8080;
}


server {
        listen 80;

        location / {
        proxy_pass http://$upstream;
        proxy_redirect off;
            proxy_set_header Host               $host;
            proxy_set_header X-Forwarded-Host   $host;
            proxy_set_header X-Forwarded-Server $host;
            proxy_set_header X-Real-IP          $remote_addr;
            proxy_set_header X-Forwarded-For    $proxy_add_x_forwarded_for;
        }                                                                    
}

I am confused about this configuration. Is it gonna work as it meant ? Will every request but 192.168.0.150 will go to backend-1(192.168.0.102:8080) ? and 192.168.0.250 in backend-2 ?

Question: It is not redirecting based on IP addresses. Why is that ?

At first thanks for reading and obviously i am greatly thankful to you who is going to give me or show me a good way.

I am using 64bit Ubuntu-16.04 and have a 111.8GB Disk.

As you can see from above i have Ubuntu installed in extended partition /dev/sda5 and swap in extended partition /dev/sda6. I have windows installed in /dev/sda2 and System Reserved in /dev/sda1 which are in primary partition.

Now i want to remove /dev/sda2 and /dev/sda1 and expand my root partition /dev/sda5 without loosing data.

Is there any way i can do that?

And what about making the root and swap partition to primary partition without hampering system ?

The Script(input.sh):

echo "What is your name?"

if [[ $1 =~ "*" ]]
then
read name1
read name2
echo "Are you really "$name1 "??? or" $name2 "?"
else
echo "Are you really "$1 "??? or" $2 "?"
fi

What I want is if I run the command:./input.sh fahad Eclipse

Then it should print:

What is your name?
Are you really fahad ??? or Eclipse ?

Also, if I do this: ./input.sh

Then it should ask me for input and then print the line.

How can I do that ?

I want to install KDE in my Ubuntu 12.04 .

I am using LightDM. So how can I fully install KDE? I do not want to remove LightDM.

I want KDE but without any confliction with it.

I have installed cowsay and fortune. I want to set my own talks or texts in cowsay. But I can't configure it out. When I open terminal there is nothing from cowsay. I want to show cowsay when I start terminal.

But this works:

hash@ssl50:~$ cowsay -f tux "Carry on"

< carry on >
----------
   \
    \
        .--.
       |o_o |
       |:_/ |
      //   \ \
     (|     | )
    /'\_   _/`\
    \___)=(___/

I was trying apt-get update but from an over night wait i found this !!

Also my software centre is showing , when i click some software to install it shows it is from multiverse source or something and when i click to "use the source" it shows updating catch and goes and goes and actually no data transfer use....????

I want my Ubuntu to look like Mac OS X. Just icon and theme if possible! Is it possible? Is there any way to install slingshot launcher?