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# download
$ curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"

#install
$ sudo install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl

Adding VPN Support

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(AnyConnect)

These instructions assume that you are using Ubuntu.

Create a WSL configuration file

In your Ubuntu terminal, issue the following command:Record your current nameserver

$ catsudo vi /etc/resolfwsl.conf

Add the following:

[network]

# This file was automatically generated by WSL. To stop automatic generation of this file, add the following entry to /etc/wsl.conf:
# [network]
# generateResolvConf = false
nameserver 172.17.192.161

1. cd /etc 

2. echo "[network]" | sudo tee wsl.conf 

3. echo "generateResolvConf = false" | sudo tee -a wsl.conf

4.  wsl --terminate Ubuntu  #(Terminate WSL in Windows cmd, in case is Ubuntu not Debian).

5. cd ~/../../etc (go to etc folder in WSL).

6. sudo rm -Rf resolv.conf (Delete the resolv.conf file).

6.5 Connect to your vpn

7. In windows cmd, with the vpn connected do:

  > ipconfig /all to get the dns primary and secondary.

135.5.25.53
135.239.25.53

...

generateResolvConf = false

Terminate your Linux instance

From a Windows Command Prompt issue the following command:

> wsl --terminate Ubuntu

Delete your existing resolfv.conf file

In your Ubuntu terminal, issue the following command:

cd /etc
sudo rm -Rf resolv.conf

Connect to your VPN

Connect to the VPN using your AnyConnect client.

Determine your VPN Connection DNS IP Addresses

From a Windows Command Prompt issue the following command:

> ipconfig /all 

   Connection-specific DNS Suffix  . : vpn.company.com
   Description . . . . . . . . . . . : Cisco AnyConnect Secure Mobility Client Virtual Miniport Adapter for Windows x64
   Physical Address. . . . . . . . . : 00-05-9A-3C-7A-00
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::3d7f:b69b:dd71:28d1%25(Preferred)
   Link-local IPv6 Address . . . . . : fe80::cde5:6a02:e9d2:f284%25(Preferred)
   IPv4 Address. . . . . . . . . . . : 135.255.134.209(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.240.0
   Default Gateway . . . . . . . . . : ::
                                       135.255.128.1
   DHCPv6 IAID . . . . . . . . . . . : 419431834
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-28-25-22-A7-6C-02-E0-CD-FE-58
   DNS Servers . . . . . . . . . . . : 135.5.25.53
                                       135.239.25.53
   Primary WINS Server . . . . . . . : 135.5.8.20
   Secondary WINS Server . . . . . . : 135.5.136.20
   NetBIOS over Tcpip. . . . . . . . : Enabled

From the above output, we can see that the VPNs DNS IP addresses are: 135.5.25.53 and 135.239.25.53.

Update your Resolv.conf File

In your Ubuntu terminal, issue the following command:

$ sudo vi /etc/resolve.cong

Replace contents with the following

nameserver <VPN_DNS_IP1>
nameserver <VPN_DNS_IP2>
nameserver 8.8.8.8

Terminate your Linux instance

From a Windows Command Prompt issue the following command:

> wsl --terminate Ubuntu

Lock the Resolv.conf file from Updates

In your Ubuntu terminal, issue the following command:

$ sudo chattr +i /etc/resolv.conf

Set the NET IP Interface for the VPN Connection

Open Windows Powershell with Administrative rights:

Image Added

From this Windows Powershell instance, Issue the following command:

Get-NetAdapter | Where-Object {$_.InterfaceDescription -Match "Cisco AnyConnect"} | Set-NetIPInterface -InterfaceMetric 

9. echo "nameserver X.X.X.X" | sudo tee /etc/resolv.conf (Create resolv.conf and append the line.)

10. echo "nameserver X.X.X.X" | sudo tee -a /etc/resolv.conf (Append the line in resolv.conf)

11. wsl --terminate Ubuntu (Terminate WSL in Windows cmd, in case is Ubuntu not Debian).

12. sudo chattr +i /etc/resolv.conf

13. And finally in windows powershell with Administrative rights:

Image Removed

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6000

References

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