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How to recover from this NIS & NFS client error?

I have a centralized NIS and NFS server on my server. I use this server to control 100 Linux clients, /$home/ directory and authentication are served by the centralized server. The other day in one of ...
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Configure linux to use digest proxy

I'm using Centos 6.4 and I'm connected to a network that's using proxy with Digest authentication. The problem is when using wget with any URL, I get the error "Authentication required ". I've tried ...
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Log in using a 4-digit PIN, with a password fallback

Windows 8 has this feature where you can log in with a 4-digit PIN which is really convenient. Is there such a thing in Linux? In Windows 8, you get five attempts to log in using the PIN, then it ...
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197 views

Sendmail authentication

when I try to send email from my new system: Distributor ID: Scientific Description: Scientific Linux release 6.4 (Carbon) Release: 6.4 Codename: Carbon with sendmail Version 8.14.4 I have this ...
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98 views

How to determine the sequence of ordering certificates by browser?

I did a Mutual Certificate Authentication implementation with OpenSSL and Apache Web Server on CentOS platform. To simple explanation see this diagram: ---------- | ...
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447 views

Certificate extensions in generating and signing certificartes using openssl

References: SSL Configurations for Intermediate certificate How to add my own created certificate authority to system trusted repositories Why I can't find a page which tell me what's the kind of ...
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56 views

Where to put generated certicate for user [duplicate]

I was following this tutorial and I want to implement mutual authentication between server and client, where server and CA (certificate authority) is the same thing. I reached the last step and I ...
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128 views

Why is my ssh connection unauthorized although I have updated my key on the remote machine?

On my local machine I have a public key stored in .ssh/id_rsa.pub To be able to log in to a remote machine I copy this key using ssh-copy-id: ssh-copy-id user@remote-host On the remote host, I ...
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Password length and complexity

I am using CentOS and I want to set the minimum password length, minimum password expiry , maximum password expiry and password complexity in my system. I have looked over some tutorials to change ...
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43 views

How do i deal with HP Device Manager requiring authentication to remove print jobs?

I have Fedora 20, with Gnome 3 Classic, and have installed Okular to read and, especially, print pages from, .pdf files. I want to print only a few pages, but in my frustrated attempts to set this up ...