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Closed 7 years ago.
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I'm a programmer dammit, I should be allowed to ask these kinds of IT questions! :)
Anyway the problem is as follows. I'm writing an automatic build script to deploy code to a live windows 2003 server. To get access to the server I enabled the VPN role, and I can connect to it remotely from my dev machine using a username and password I set up on the server from the network connections screen.
I set up a share on that machine and gave full share+security permissions to the account I am using to connect. Once connected, I would have thought I would be able to see the share. In fact I can't even see the computer even though the VPN is connected (if i type '\IPADDRESS\' into the run box nothing comes up).
Am I missing an essential step here?
So you can use Remote Desktop Connection to connect to the server, but CIFS/SMB (shares) is not working?
Is there a Windows firewall setting that needs to be changed (... I don't even know if there was a 2003 update that included Windows firewall)?
Pinging the IP address results in which error message (or, hopefully none if you can RDC)?
Is the remote server and your local dev box on the same IP subnet? If its not routed properly you may be trying to hit a local address.
It looks to me like you can't connect to a network share from inside the same session that you esatblished the VPN connection in. I now manually open the VPN connection, then kick off the build scripts
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Closed 2 years ago.
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I have a Virtual Private Server (VPS) running Debian 10. On this server there is an application (its code rather cannot be modified) which creates an open TCP/IP port (let's say 6000). The application has a simple database with users and passwords and all incoming messages MUST be HTTP.
Obviously, at this point I am more than worried about the security of the communication (which in fact does not exist due to the plain nature of HTTP).
My first thought would be to drop all packets on the mentioned port for the eth0 iface (which is exposed to Internet), create OpenVPN server on my VPS and connect to this VPN all clients that would like to use my application. The problem here is that these clients will most likely be Android devices and it will not be possible to upload certificates for each device and do other configuration magic to establish the VPN connection. I also would not like to implement OpenVPN in a dedicated Android app.
My another though was that there is maybe an application which I would start on the VPS and it would implement such logic:
Android app <--HTTPS--> UnknownApp(on VPS side) <--HTTP--> port6000(My original unsafe app also on the VPS side)
Is it feasible to implement such scenario? Ofc I could write such app on my own but I would prefer to use tested and reliable solutions.
The application you are looking for is stunnel. It does exactly what you described, it is well tested, based on well-known libraries, and production ready.
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Background Info:
My office is closing down due to COVID19 outbreak policies.
Unfortunately we do not have a VPN in place, and currently one of my coworkers has to going in every day to make commits for everyone who is working remotely--our repos are stored inside the office internal network.
The Problem:
I need to be able to get inside the internal network remotely using SSH, without having to make any changes to network configuration (I do not have access to the network devices). This means I would not be opening ports, or making firewall exceptions for example.
I was thinking of using a raspberry pi with a fresh linux image (any supported distro would be fine, I'm open to suggestions).
My goal is to plug the pi3 to my workstation ethernet port, and leave it there for the time being. I would not be able to do any physical reboots , etc.
I need a suggestion for a free tunneling solution that would be easy to set up and use for 1-10 people to be able to connect using a secure connection (SSH) and gain access to internal resources remotely.
Question:
I need suggestions for which distro would be nice and light enough for the pi3 to handle, and SSH server software to use.
I looked into OpenSSh which has been suggested in other similar threads, but it would require configuring firewall and opening port 22, which I cannot do.
Other
I've used Google Chrome's remote desktop in the past and it has worked wonderfully. I would set up the "host" machine with it, and then any other machine with Chrome (with the same account) could remote in without any sort of network configuration.
I guess I just need something similar to this, but instead of remote desktop I need an SSH solution. I would create a few root-enabled accounts to allow other devs to connect to it at the same time if possible.
I found a solution to my problem and will pass it along to my IT team for proper approval prior to putting in place. However I wanted to share the answer here in case anyone else ever has a similar situation.
As stated, be sure to check your company's policy and consult the proper channels before doing this sort of thing, as it can cause security risks and could get you fired... so be advised, do this at your own risk!
With that said, a "Reverse SSH" could be the solution to the problem. It allows you to connect to a machine inside of a network without having to open ports or firewall exceptions.
This isn't a good long term solution for most cases, but might be the workaround you need to do the trick in a pinch.
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Closed 6 years ago.
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I am currently living at the student homes to my university. I want to set up a NAS / server to run backups, VM and some other small task. This is also something I want to set up to learn more about Linux and networking. I am currently planning how to set it up and what hardware to buy, but I want to run arch Linux on it with RAID 1. A problem I'm thinking about is that I don't have access to the router and therefore I can't set up port forwarding to connect to the server. Is there a way to get remote access to it without adjusting the settings in the router?
At my University we have the ability to connect to a vpn so we can access services only available through a specific University IP.
I haven't tested this method but I believe it could work.
Set up your services like normal and configure them to use port 80 if they need any data from the outside.
Make a script, probably available somewhere, to send you your internally ip address on e.g. mail.
That way you can use your schools VPN service to connect to the lan and from there you can access an internal ip address(your server).
This all depends on this VPN service and if you are connected to the same network.
#iporSircor commented on a method you can use. It's basically the same as what I wrote, but instead of connecting to schools VPN you will connect to your own VPN(server).
Test it out and let us know what method you used, what worked, what didn't.
And also you should talk to your school to find out if using Tor or even setting up a server on their network is allowed.
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Closed 7 years ago.
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I'm trying to connect Winscp with virtual machine. I'm working on Windows,and this problem is killing me for 5 hours. Studied a lot of examples, but I can't find out what is the problem. I tried to connect with putty to, but connection is every time refused. Tried to connect with every protocol, but didn't help. I even can't install ssh into Ubuntu, because something is blocking but not firewall(failed to fetch us archive ubuntu com). Port forwarding too wasn't very helpful.
1st Adapter is NAT, and second host-only.
Problem is that I need to enter home directory, and add some files, so I'm trying to find the easiest way to do this.
I would really appreciate any help. Here is my ifconfig, ip a, and interfaces picture.
1
Thanks!
Use the following step to configure.
1- Run ipconfig /all on your windows machine and see which ip are assigned to your virtual adopters.
2- Assign the same range ip to your virtual machine. For example:
If on virtual adopter ip is: 192.168.130.1
Then assign ip to your vm as: 192.168.130.*
and set gateway to : 192.168.130.1
and restart the service network and check the reachability by pinging from both side.
3- If You able to ping then you will be able to use internate on your VM. Then install the ssh.
Now you will be able to use.
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Closed 9 years ago.
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I am using Linux on VMWare Workstation inside windows 7 and i want to access to the URL below in terminal but i always get this error back. I am totally sure that everything is correct because my friend has tried the same on his computer and it worked. Please advise me something about it .It is very important
svn co svn://svn.alunos.di.uminho.pt/projectname --username __ --password __
svn: E000111: Unable to connect to a repository at URL 'svn://svn.alunos.di.uminho.pt/__'
svn: E000111: Can't connect to host 'svn.alunos.di.uminho.pt': Connection refused
The problem is that the IP address of the VM is being blocked from connecting somehow. It could be being blocked by the server, or an intermediate firewall (because it doesn't recognise the IP address, or because you are using some network like a guest network or wifi, that blocks certain ports or hosts) or it could be that there is no route from the VM to the server.
Basically I would say it's an IT Helpdesk issue; however, if the Helpdesk does not support VMware, or does not support Linux, or does not support connecting to that server, then you will have to ask someone else.