Uncategorized – Netpap Documentation

Restart VPN Connection on Mikrotik

At times due to load balancing,a vpn connection stops working and crm systems,radius servers or remote access may stop working.Here is a script to disable vpn and re enable

Navigate to scheduler,

Click add new scheduler.

Paste the following code on Event

Set time to run every 1 minute

 {

:global ovpnClientName “VPN NAME ON INTERFACES”


:local ovpnStatus [/interface ovpn-client get [find name=$ovpnClientName] running]


:if ($ovpnStatus ~ “false”)  do={

 
   :put “here”
   /interface ovpn-client disable [find name=$ovpnClientName]

 
   :delay 1s


    /interface ovpn-client enable [find name=$ovpnClientName]


   :put  “2”
}
}

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{

:global ovpnClientName “VPN NAME ON INTERFACES”

:local ovpnStatus [/interface ovpn-client get [find name=$ovpnClientName] running]

:if ($ovpnStatus ~ “false”) do={

:put “here”

/interface ovpn–client disable [find name=$ovpnClientName]

:delay 1s

/interface ovpn–client enable [find name=$ovpnClientName]

:put “2”

}

Expected on mikrotik

August 30, 2023

KVM Acceleration cannot be Used.

KVM acceleration cannot be used (/dev/kvm doesn’t exist). It is possible to turn off KVM support in the gns3_server.conf by adding enable_kvm = false to the [Qemu] section.

This error occurs while i was using mikrotik on GNS3 for the first time.

How i solved it

 vim ~/.config/GNS3/2.2/gns3_server.conf

1	vim ~/.config/GNS3/2.2/gns3_server.conf

Add the following snippet at the end of the file

[Qemu]
enable_kvm=false

1 2	[Qemu] enable_kvm=false

Restart the mikrotik on gns3

July 8, 2023

The ‘gns3-gui==2.2.23’ distribution was not found

I experienced this error in Ubuntu Hirsute Hippo (21.04)The complete error when i run gns3 on terminal

File “/usr/lib/python3/dist-packages/pkg_resources/init.py”, line 777, in resolveraise DistributionNotFound(req, requirers)pkg_resources.DistributionNotFound: The ‘gns3-gui==2.2.23’ distribution was not found and is required by the application

To resolve this error

sudo apt remove gns3

sudo apt remove gns3-server

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sudo apt remove gns3

sudo apt remove gns3–server

Update your Ubuntu

sudo apt update
sudo apt upgrade
sudo apt dist-upgrade
sudo apt install update-manager-core

do-release-upgrade

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sudo apt update

sudo apt upgrade

sudo apt dist–upgrade

sudo apt install update–manager–core

do–release–upgrade

Re-Install GNS 3

sudo apt update

sudo add-apt-repository ppa:gns3/ppa

sudo apt update                                
sudo apt install gns3-server gns3-gui

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sudo apt update

sudo add–apt–repository ppa:gns3/ppa

sudo apt update

sudo apt install gns3–server gns3–gui

July 8, 2023

SyntaxError: Illegal continue statement: no surrounding iteration statement

OCCURS WHEN

var data =[1,2,3,4]
Object.keys(ydata).forEach(function(key){  
 if (data[key] == 1){
   continue
}

})

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var data =[1,2,3,4]

Object.keys(ydata).forEach(function(key){

if (data[key] == 1){

continue

}

})

SOLUTION

var data =[1,2,3,4]
Object.keys(ydata).forEach(function(key){  
 if (data[key] == 1){
   return
}

})

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var data =[1,2,3,4]

Object.keys(ydata).forEach(function(key){

if (data[key] == 1){

return

}

})

March 19, 2023

error: failed to push some refs to ‘github.com:….

This error means no changes in the local repository,therefore

git add -A .
git commit -m “Update on the landing page”

git push -u origin main

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git add –A .

git commit –m “Update on the landing page”

git push –u origin main

March 6, 2023

mkdir:Cannot create directory ‘/.NVM’:Permission denied

(base) shockwave@Netpapverse:/home/shockwave$ nvm install v14.15
mkdir: cannot create directory ‘/.nvm’: Permission denied
mkdir: cannot create directory ‘/.nvm’: Permission denied
Downloading and installing node v14.15.5…
mkdir: cannot create directory ‘/.nvm’: Permission denied
creating directory /.nvm/.cache/bin/node-v14.15.5-linux-x64/files failed
Downloading https://nodejs.org/dist/v14.15.5/node-v14.15.5-linux-x64.tar.xz…
Warning: Failed to create the file                                                                                                                                                                        
Warning: /.nvm/.cache/bin/node-v14.15.5-linux-x64/node-v14.15.5-linux-x64.tar.x
Warning: z: No such file or directory
                                                                                                                                                                                                       0.0%curl: (23) Failure writing output to destination

Binary download from https://nodejs.org/dist/v14.15.5/node-v14.15.5-linux-x64.tar.xz failed, trying source.
grep: /.nvm/.cache/bin/node-v14.15.5-linux-x64/node-v14.15.5-linux-x64.tar.xz: No such file or directory
Provided file to checksum does not exist.
Binary download failed, trying source.
Clang v3.5+ detected! CC or CXX not specified, will use Clang as C/C++ compiler!
mkdir: cannot create directory ‘/.nvm’: Permission denied
creating directory /.nvm/.cache/src/node-v14.15.5/files failed
Downloading https://nodejs.org/dist/v14.15.5/node-v14.15.5.tar.xz…
Warning: Failed to create the file                                                                                                                                                                        
Warning: /.nvm/.cache/src/node-v14.15.5/node-v14.15.5.tar.xz: No such file or 
Warning: directory
curl: (23) Failure writing output to destination

Binary download from https://nodejs.org/dist/v14.15.5/node-v14.15.5.tar.xz failed, trying source.
grep: /.nvm/.cache/src/node-v14.15.5/node-v14.15.5.tar.xz: No such file or directory
Provided file to checksum does not exist.
(base) shockwave@Netpapverse:/home/shockwave$ nvm ls
               
->       system
mkdir: cannot create directory ‘/.nvm’: Permission denied
mkdir: cannot create directory ‘/.nvm’: Permission denied

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(base) shockwave@Netpapverse:/home/shockwave$ nvm install v14.15

mkdir: cannot create directory ‘/.nvm’: Permission denied

Downloading and installing node v14.15.5…

mkdir: cannot create directory ‘/.nvm’: Permission denied

creating directory /.nvm/.cache/bin/node–v14.15.5–linux–x64/files failed

Downloading https://nodejs.org/dist/v14.15.5/node-v14.15.5-linux-x64.tar.xz…

Warning: Failed to create the file

Warning: /.nvm/.cache/bin/node–v14.15.5–linux–x64/node–v14.15.5–linux–x64.tar.x

Warning: z: No such file or directory

0.0%curl: (23) Failure writing output to destination

Binary download from https://nodejs.org/dist/v14.15.5/node-v14.15.5-linux-x64.tar.xz failed, trying source.

grep: /.nvm/.cache/bin/node–v14.15.5–linux–x64/node–v14.15.5–linux–x64.tar.xz: No such file or directory

Provided file to checksum does not exist.

Binary download failed, trying source.

Clang v3.5+ detected! CC or CXX not specified, will use Clang as C/C++ compiler!

mkdir: cannot create directory ‘/.nvm’: Permission denied

creating directory /.nvm/.cache/src/node–v14.15.5/files failed

Downloading https://nodejs.org/dist/v14.15.5/node-v14.15.5.tar.xz…

Warning: Failed to create the file

Warning: /.nvm/.cache/src/node–v14.15.5/node–v14.15.5.tar.xz: No such file or

Warning: directory

curl: (23) Failure writing output to destination

Binary download from https://nodejs.org/dist/v14.15.5/node-v14.15.5.tar.xz failed, trying source.

grep: /.nvm/.cache/src/node–v14.15.5/node–v14.15.5.tar.xz: No such file or directory

Provided file to checksum does not exist.

(base) shockwave@Netpapverse:/home/shockwave$ nvm ls

-> system

mkdir: cannot create directory ‘/.nvm’: Permission denied

How to solve it

(base) shockwave@Netpapverse:/home/shockwave$ export NVM_DIR=~/.nvm
(base) shockwave@Netpapverse:/home/shockwave$ . .nvm/nvm.sh

1 2	(base) shockwave@Netpapverse:/home/shockwave$ export NVM_DIR=~/.nvm (base) shockwave@Netpapverse:/home/shockwave$ . .nvm/nvm.sh

February 10, 2023

Customize OPENVPN profile for Mikrotik client

Mikrotik support for vpn is quite versatile with several VPN clients/server setups to chose from,among them OPENVPN.

Facts to grasp before deployment of the openvpn:

Lacks support for

udp
lzo compression
tls
sha512

While deploying the ovpn file,make sure tls is disabled and the tls certificate absent.

Sample ovpn client for mikrotik

client
dev tun
proto tcp
remote PUBLIC IP PORT
resolv-retry infinite
nobind
persist-key
persist-tun
auth SHA1
cipher AES-256-CBC
ignore-unknown-option block-outside-dns
verb 3
—–BEGIN CERTIFICATE—– CA —–END CERTIFICATE—–

—–BEGIN CERTIFICATE—– cert—–END CERTIFICATE—–

—–BEGIN PRIVATE KEY—– Key—–END PRIVATE KEY—–

February 1, 2023

Category: Uncategorized

Update your Ubuntu

Re-Install GNS 3

How to solve it

Sample ovpn client for mikrotik