I have computer with self hosted WireGuard VPN in docker container. When I'm in local network and I'm not connected trough VPN, it's possible to connect with machine using hostname instead ip address:
ssh username#computer_name
but when I'll connect trough VPN from external network then I have to use local ip addresess like
ssh username#xxx.xxx.x.x
because when I try use hostname I receive message:
ssh: Could not resolve hostname computer_name: Unknown host.
The machine with the VPN is the same machine I am trying to connect to via ssh using hostname.
Related
I am running Devstack on my machine and i would like to know if it is possible to ping an instance from Host. The default external network of Devstack is 172.24.4.0/24 and br-ex on Host has the IP 172.24.4.1. I launch an instance using the internal network of Devstack (192.168.233.0/24) and the instance gets the IP 192.168.233.100. My Host's IP is 192.168.1.10. Is there a way to ping 192.168.233.100 from my Host? Another thing i thought is to boot up a VM directly to the external network (172.24.4.0/24) but the VM does not boot up correctly. I can only use that network for associating floating IP's.
I have edited the security group and i have allowed ICMP and SSH, so this is not a problem.
I want to access a web-server running on my local Vagrant VM on say network A from a different host machine's browser connected to network B. I have used following in my vagrant file and forwarding ports accordingly :
config.vm.network "private_network", ip: "192.168.59.49"
It's working fine if I try to access the server from my local machine's browser but not from a machine connected to a different network.
You can open and forward your 80 port from local machine to vm or other port like 8080.
You can put the VM in the same network with your machine via DHCP or give it a static IP
Create a VPN with all the machines from where you wannt to access you VM
I in a remote Server (I call it host machine) setup the OpenStack Ocata.
And in the OpenStack Ocata I created a VM, the VM use the Security Group (named allow ping & ssh), which is created by myself:
Now, I can use my Mac ping the VM. but can not ssh connect to the VM.
And in the VM(it's IP is 192.168.1.4 and floating IP is 103.35.202.3), I can ping 192.168.1.1 and 103.35.202.1(the host machine's public IP), but can not ping google.com or other public IP.
Why in my Mac I can ping the VM but can not ssh to it?
Why in the VM I can ping the host machine, but can not ping other public IP?
where is the issue?
Currently the only Egress traffic allowed out is for ICMP. Egress is missing for TCP/UDP. Add in Egress rules for both UDP (should help resolve the DNS issue) and TCP (should resolve the SSH issue.)
After adding in the Egress rules for TCP - test ssh again.
After adding in the Egress rules for UDP - test DNS resolution, if you are still running into issues then you may want to verify the DNS servers used when configuring the network.
I am running Boot2Docker in Virtual Box on Windows, using VB bridged networking. The IP address of my PC (192.168.2.2) and of the VM (192.168.2.30) is determined by the DHCP server.
I have configured the docker bridge as follows:
File /var/lib/boot2docker/profile:
EXTRA_ARGS='--bip=192.168.2.192/25 --fixed-cidr=192.168.2.224/27'
From my Windows PC I can successfully ping the folloing IP addresses:
192.168.2.30 (ip address of eth1 in the Docker Host)
192.168.2.192 (ip address of docker0)
However I cannot ping any container that I start. E.g. for container IP 192.168.2.226,
I get a reply from 192.168.2.2 (my PC address) that the Desitination Host is unreachable.
How can I get this to work?
I figured it out in the meantime:
On Windows 7, from an elevated cmd shell do:
route add 192.168.2.224/27 192.168.2.30
This way the IP packets find their way to the containers!
I have configured my guest VM as described here: https://askubuntu.com/a/293817/503589
Unfortunately I cannot connect to the guest via IP or "localhost", if the Cisco AnyConnect VPN Client is connected on the host (Windows 7).
It works as long as I am not connected with the Cisco VPN AnyConnect Client on the host.
My requirements are the following:
the host should be able to access the guest with it's static IP, whether I am connected to host VPN or not.
I am working remote (WLAN) or in the office (LAN). In the office it's working, because I have no Cisco VPN Client connected.
guest can access the internet
I can move my laptop from network to network (e.g. from home to office to coffeeshop) without worrying about securing or reconfiguring the vm
What I also already tried and what didn't work:
NAT
Bridged
The Cisco VPN client is likely configured for full tunneling. Meaning all traffic is routed through the VPN interface. This is why you are unable to reach other hosts on your LAN.
You might be able to request a split-tunneled profile from your Network team, but it may go against company policy.