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Closed 6 years ago.
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I enabled AD authentication for my Linux cluster via SSSD service. One side effect is I'm able to do SSO for the cluster now, but it works for some accounts and doesn't for the others. For example, I have two Linux boxes they all registered to the domain. And two accounts are a domain user, and both have been permitted to access the Linux boxes. One can ssh from one box to the other, but the other account doesn't. Default configures the SSSD and SSHD. I don't know what I have to check?
All right, I figure it out, I sudoed from one account to the other, so there are no password in the keytab for the second account, that's why the SSO doesn't work.
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Closed 2 years ago.
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I have a website : https://linuxquizapp.com.uy.
I recently used Google Search Console to index it into google but when I do a search, I get this instead:
That's the right IP but most importantly, how did the IP ended up there instead of the domain name and also, is there anything I can do to correct this?
The app is written in Go, and there is no Apache or Nginx or whatnot configuration I should change?
Note- I am including an image in the question instead of plain text or a link so this does not get "outdated" as Google indexer updates stuff.
You need to redirect the IP as host based requests to the domain host.
Once you will do that, google indexes will get updated in few days to show the hostname as domain instead of IP address.
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Closed 1 year ago.
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How can I check if a username exists at a ssh server address using command line tools? For example, I would love to type,
isvaliduser [username] [ssh_server]
result: True
where isvaliduser is some magical function that tests whether a user with name username exists at ssh_server. But is this feasible?
My specific application: The remote server I need to access has a dynamic IP (I can't use a Dynamic DNS service). I can come up with a list of server addresses that contains my target address, but I need a way to figure out which one is mine. I thought one way of doing this would be to test if any of the addresses have the user myusername. But if you have another suggestion for solving my particular problem, I would be happy to hear it.
You have to connect to that server and check if the user is in the passwd for example:
ssh your_account_at_serve#[ssh_server] grep [username] /etc/passwd
If you would be able to enumerate users without authentication, it is considered as a information disclosure and security threat.
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Closed 7 years ago.
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What is meant by a local area network configuration, as opposed to a local area network? or any network configuration for that matter.
What does it refer to exactly?
As it's name would imply, a LAN configuration refers to the parameters that defines the network, such as the network mask, security protocol in use, access control, IP (if a TCP/IP network) address delivery method, etc.
Btw this question is quite vague. If you're looking to know more about networks, you should start by some readings, and could possibly try out some online configuration exemple such as this one
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Closed 8 years ago.
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What is the point of allowing ssh-keygen to generate empty passphrase keys when it is not recommended to use such keys for remote login? What situations would such keys be useful for?
The passphrase protects the key in its storage on your local computer.
Even without a passphrase, a key is still better than a password, as it can only be "stolen" if someone has physical access to your computer (or at least some kind of network access to the files on your computer), whereas a password can be brute-forced (or leaked from any number of places in case you re-use passwords).
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Closed 8 years ago.
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For our company I want to setup a file sharing service such as Dropbox but on our own servers for our corporate information.
It must be only available for employes of our company.
Please suggest me software package.
I suggest you try http://owncloud.org/.
That's what we use in my company and it is quite convenient to sync our working files (similar to what dropbox do), and to share files as well.
Have a look at arXshare (http://www.arxshare.com). You can install it on any server with PHP, it is easy to setup, and it does not require any database and is very lightweight. Furthermore, it does end-to-end encryption, so your shared files on the server are useless without your password.