After a recent clean install of 15.6 over 15.5 one of the many problems I have encountered is that MATLAB no longer installs, over the network, as it has for pretty much 20 years. In my interactions with Mathworks Help, they ask if TCP ports 80 and 443 are open, since the errors I get in a failed install implicate some problem with the download process. I am completely out of my depth here, although I gather wireshark is a monitoring program that might answer this question. Or is this bit of information available from one of the topics in Yast? Network Settings? Security? Firewall?
There is nothing in openSUSE distributions that prevents outbound connections from happening. It would help if you showed what you actually see when you try to download or install the software.
My apologies, I am not looking for MATLAB install help here. This is a Mathwork’s problem. All I am looking for is the information that they asked of me. The actual error message, generated by the installer, is very generic:“There was an error downloading product files. Check you internet connection and then rerun the installer”. This is not a system message.
I have already pointed out to them that I had just downloaded the zipped installer at 227 MB, so it seems passing strange that the unzipped installer cannot get more than 400 KB into the install before choking.
There’s nothing in a default installation of openSUSE Leap 15.6 that blocks outbound connections on any port. The firewall is a ingress firewall, not an egress firewall.
I would be looking at what it’s trying to connect to and see if the name is resolving, and if the address is reachable.
Did you really check those? Or did you go for the default they filled in to be checked?
I wonder because I really doubt you have FTP, SSH, HTTP and HTTPS open on the Internet side and thus configured port forwarding for them you one or more of your systems on your LAN.
When you are interested, you could try the “Scan All Common Ports” at right below the port list.
Who said anything about port forwarding? They’re dead ends to gather IP’s … ever heard of an honey pot? They are not advertised and change constantly … Nmap is fine for me thank you …
OK, I am getting confused by the replies here. Where is this “online port checker”? If I Google this then, among other entries, I find portchecker.co, but it seems to want install something on my machine, but an alternate choice calls itself an “online port scanner”, and that works in my browser. If I click the scan button there it says all my common ports are closed, from FTP Data transfer on 20 to PC Anywhere on 5631.
And what does this result mean? I am assuming that it means I am not providing any of these services, but it certainly can’t mean I can’t obtain services using HTTP or HTTPS, since I am interacting with the Forum by accessing an “https” site.
Again, I am simply trying to provide Mathworks with the information they requested. They asked if 80 and 443 were open. I assumed the first replies in this stream meant they were, which is what I told them last week. Now it appears this port scan says they are closed. What should these ports read for a decidedly consumer/non-server installation of 15.6?
@laurencek Inbound ports should be closed by the firewall on your internet facing router, so just tell them you used an online scanner and they are not open to the internet.
You don’t need to worry about checking inbound ports on your system. You’re installing software that needs to connect outbound.
There is no reason for the purposes of what you’re trying to do to try scanning the inbound connectivity to your machine.
You are able to connect to websites on the internet, so the answer to Mathworks’ question is “yes, I can connect to websites on the internet - both port 80 and port 443”.
It looks to me the port 80/443 question is confusing you but for the question of Matlab you can tell them:
yes I can access https://www.mathworks.com/ and http://lushbrightsilververse.neverssl.com
And with that your and their question should be answered. Did matlab come back with something else last week? Would be still good to know if you can log in with MathWorks.
This has never been about me being unable to contact or login to my Mathworks account, or then downloading some rather large, install-related, files (13 GB) from them. And by now I think my original question to this forum is turning out to be irrelevant to the problems that have occurred. I thank you all for your suggestions, but I think we might as well close this topic.
