Questions about signed certificates and the processes involved (Creation, signing, accepting, viewing)

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6 views

Ubuntu.com not using SSL for hash values, signatures

Neither http://www.ubuntu.com nor http://releases.ubuntu.com use SSL/TLS connections. So I have an OS install file and a matching hash value, but I got both from a site that looks like Ubuntu.com but ...
0
votes
1answer
32 views

Deleted CA Certificates in Firefox

I was very silly and deleted all my default CA certificates in Firefox. (I'm using Ubuntu). How do I get them all back?
-1
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0answers
37 views

VPN - where to find CA certificate?

I'm trying to setup a VPN connection in Ubuntu 13.10. So I installed the OpenVPN "plugin": sudo apt-get install network-manager-openvpn Then I clicked the network icon on the top right of my ...
0
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0answers
77 views

12.04.4 server can't verify common SSL certificates, usual fixes failing

The Problem I've got one server in a farm which is suddenly unable to correctly handle SSL certificates. Attempting to do a curl command like curl -v https://google.com results in: curl -v ...
2
votes
1answer
70 views

How does one remove a certificate authority's certificate from a system?

The ca-certificates package was just updated, and it caused the following changes on my Xubuntu 13.10 system: Running hooks in /etc/ca-certificates/update.d.... Adding debian:CA_Disig_Root_R1.pem ...
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0answers
54 views

How can I add ppa:webupd8team/java to my repository with there are certificate errors?

I know this question has had a lot of attention and I wouldn't ask unless previous answers wouldn't work. I have tried each of the responses at these questions: ...
3
votes
1answer
61 views

Problem with certificates

Hu guys! For years I solved every problem that I've had with ubuntu with google, forums and IRC, but I found one that I can't pass through. I'm with problems with ca-certificates, every site that I ...
0
votes
1answer
179 views

Apache2 giving SSLcertificateFile error

I am using ubuntu 13.04. Initially I had installed apache2 and it was working fine but later it started giving some issues so i removed apache using following commands sudo apt-get autoremove ...
0
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0answers
82 views

Is it possible to invoke certtool to create a self signed certificate using a pkcs #8 key and a template file?

I'm struggling with certtool from the gnutls package on Ubuntu server 12.04.3. I'm trying to follow this guide but with an encrypted key. I've created my encrypted private key like so. # certtool \ ...
1
vote
1answer
761 views

How to get a SSL certificate to be verified in Python?

I've got an inexpensive certificate from EssentialSSL (Comodo is the CA) and I was surprised to discover that Python didn't recognize it. requests.exceptions.SSLError: [Errno 1] _ssl.c:509: ...
2
votes
0answers
161 views

I cant install skype, wine or play on linux

Can anybody help? I have been installing software and enjoying ubuntu for several months now,but currently have a problem. If I try to install some programs, such as wine, skype and playon linux as ...
0
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0answers
18 views

Accessing Windows certs in Ubuntu

I've dual booted my laptop Windows 7/Ubuntu 12. I've got a bunch of corporate certificates on the Windows partition that I need to access to use the corporate network. How can I do this? I cannot ...
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0answers
195 views

SSL certificates issue with Ubuntu 12.04 as guest OS in a Windows7 virtual box behind strict firewall

I have set up an ubuntu guest for Rails development in a Windows7-hosted virtual box. The windows workstation is a behind an extremely strict firewall with often fluctuating rules. The ubuntu host ...
4
votes
1answer
178 views

How to manage imported certificates?

I've got a X.509 certificate file (with a .der file extension) of a certificate authority that I want to trust (it's required to connect to my academic network). When I double-click on a .der file I ...
-1
votes
2answers
145 views

When will Ubuntu include Digital Certificates from Govt of India Root CA PKI CCA India 2007?

Ubuntu for all platforms (laptops+mobiles) must respect and contain Government of India's Root CA and CA Certificates and improve compliance with Indian IT Act 2000 (Cross Certification) and law ...
4
votes
2answers
187 views

Dependency errors in Ubuntu installation

I'm trying to fix an APT setup in an Ubuntu server to which I only have SSH access and can't make head or tail of the dependency errors. I've run sudo apt-get install -f, and get the following: ...
0
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0answers
48 views

certtool ignores −−sec−param

I try to create ca.pem with certtool. Since I need ca.pem with "low" security level, I try to define it with --sec-param or --bits: certtool --generate-self-signed --load-privkey ca-key.pem ...
2
votes
1answer
185 views

mozroots command fails with Unsupported hash error

I am using the following set of command on a new install of 12.04 LTS. sudo apt-get install -qq python-software-properties sudo add-apt-repository -y ppa:v-kukol/mono-testing sudo apt-get update -qq ...
1
vote
1answer
580 views

wget doesn't accept google's certificate [closed]

I use wget in a cron job to download my google calendar. I know it was still working last week. Today I noticed it doesn't anymore. wget won't accept google's certificate: $ wget --debug ...
1
vote
1answer
321 views

How do I create a PGP Key Revocation Certificate in Seahorse

I created a PGP Key using Seahorse in Ubuntu's Passwords and Keys (13.04). To my understanding, creating a revocation certificate for the PGP key is important for a couple of reasons. I don't see any ...
0
votes
1answer
101 views

Digitally signing .bin file using a certificate

I have .bin file and i need to digitally sign it to ensure that it is given by me and trusted one. How can i digitally sign? In microsoft i am using signtool.exe to sign which signs by using a ...
1
vote
1answer
73 views

what is “yourDomainName.ca-bundle”?

for installing ssl certificate on ubuntu i have to insert these lines on virtualHost block: SSLEngine on SSLCertificateKeyFile /etc/ssl/ssl.key/server.key SSLCertificateFile ...
1
vote
1answer
1k views

Microsoft Office Communicator 2007 r2 in ubuntu 13.04

I am using ubuntu 13.04 64bit OS. I am new in linux.In Our network all other sysetms are windows platforms and all systems have Microsoft office communicator also.Is there any chance to use office ...
0
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3answers
2k views

Certificate error when using Citrix Receiver

I am getting this error when attempting to load a Desktop module up within Citrix Receiver: What I don't understand is I can see this particular certificate is set to "Trust.." under any/all ...
0
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0answers
34 views

How to be ubuntu certified professional/ engineer? [duplicate]

i m interesed to get certified in Linux with ubuntu. i only understood that i need to write LPI-101,102 to start! i donot know what is the procedure next? is there any exam fee and certificate ...
2
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0answers
262 views

How can I add an SSL client certificate/key globally in Ubuntu?

I have a web server which requires a client certificate to establish an SSL connection (SSLVerifyClient require in apache). In firefox or chrome, I simply import the .p12-file containing my ...
2
votes
1answer
64 views

where do certs get installed?

I just installed a cert from my company. It was on a usb key and i double clicked the file... inputted the password it asked for and it seems to have imported properly. now i'm trying to configure ...
0
votes
1answer
445 views

Checking if .pem certificate is installed

Is there a way to check if some certificate is installed or at least list the installed certificates?
1
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0answers
37 views

wiki.ubuntu.com forcing https with improper security certificate [closed]

Site: https://wiki.ubuntu.com When you attempt to go to the HTTP wiki site, the HTTP server sends a "Moved Permanently" response forcing the browser to use HTTPS/SSL, but the certificate being ...
13
votes
4answers
3k views

Add certificate authorities system-wide on Firefox

I want to add some root CAs that doesn't come with the default firefox on Ubuntu, but I don't know how. I tried adding them to the local certificates with certutil, but it didn't work. It messed up ...
0
votes
1answer
140 views

crt certificate not appearing in menu for selection

I'm trying to set up the VPN for my university on my laptop. I have downloaded to certificate file and put it in ~/misc/cacert.crt. When I try to set up the VPN, I click on the CA Certificate option ...
1
vote
1answer
868 views

Can't select wifi CA on Ubuntu 12.10 (Gnome3)

I have a fresh installation of Ubuntu 12.10 on a Packard Bell notebook, with Gnome3 instead of Unity. Now when I try to connect to a WPA/WPA2 Enterprise secured WLAN (PEAP Authentication, MSCHAPv2 as ...
2
votes
1answer
1k views

Problems importing own CA Certificate

So, I have created my own little CA for my own purposes (inside my network, etc) and I know that the setup works (I can directly import the key into applications, and they connect to the server using ...
1
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0answers
401 views

Hot to get XChat to trust CA certificate?

I have created an SSL certificate authority including a sub-authority to issue certificates. I have copied the root certificate to /usr/share/ca-certificates/extra and added it to ...
2
votes
2answers
153 views

How do I configure my wireless settings for a particular network if all I have are instructions for Windows?

I've been trying to connect to my university's secure wireless network, unfortunately they only provide instructions for Windows users here. I've tried to use the info on these instructions as best I ...
1
vote
1answer
193 views

How do I digitally sign emails outgoing from different identities?

To send emails, I use one SMTP server, say domain1.com. But I use two identities that set up in Thunderbird, say agmenor@domain1.com and agmenor@domain2.com. For those who are not knowledgeable about ...
1
vote
2answers
6k views

How do I digitally sign a PDF?

I have already acquired a S/MIME certificate (a .p12 file) issued by an authority. Using it in Writer, I can digitally sign documents by following this procedure : How do I make a digital certificate ...
1
vote
2answers
820 views

How to use certificates for Eduroam?

I am trying to connect to an eduroam network with Ubuntu 12.04. I understand you need to use certificates to log in to eduroam. I have looked on the University of East London site, but from here I ...
2
votes
1answer
357 views

Can I use gpg on both Ubuntu and Windows to encrypt my files

I have a private gpg key for Ubuntu. My question is: How can I use same encryption key for both Windows and Ubuntu? If I use gpg in Ubuntu, can I use that same gpg key with Windows or vice versa? ...
3
votes
2answers
3k views

How do I make a digital certificate available to LibreOffice Writer for digital signatures?

I obtained a client certificate from CAcert through Firefox. I want to use that certificate to sign a document created with LibreOffice Writer. In Writer, I click File > Digital Signatures... to ...
5
votes
2answers
645 views

Where should a non-administrative user save a CA certificate?

I have a CA certificate that I use to connect to a WPA2 Enterprise wireless network. Where within my home folder should I store the .crt file? I don't see anything in the Filesystem Hierarchy ...
2
votes
2answers
4k views

How do I revoke the default snakeoil certificate?

Windows XP keeps using the snakeoil certificate that Ubuntu shipped with, despite the fact that it has never been used in any virtual host ever. The certificate is located at ...
2
votes
1answer
3k views

How to use self signed certificate with an SVN client

When I access to a SVN repository with HTTPS, I have the follwing error: SSL handshake failed: SSL error: A TLS warning alert has been received. I target a SVN server (with mod_dav) with a self signed ...
12
votes
3answers
271 views

Do I need an Ubuntu certification to teach Ubuntu

I have several students that want a course of Ubuntu. I would like to know the following very important points: Do I need an Ubuntu certification to certified my students afterwards that they know ...
1
vote
1answer
2k views

Installed .cer security cerificate [closed]

(linux noob here) I have been trying to resolve this all day, my university uses Secure W2 to control access to its wireless network, I have a copy of the security certificate but I cant seem to ...
32
votes
4answers
39k views

How do I install a root certificate?

Can anyone point me to a good tutorial on installing a root certificate on ubuntu 10 or 11? I've been provided with a .crt file. I gather that need to create a directory at ...
1
vote
0answers
305 views

Import certificates in ubuntu's JDK [closed]

I was able to import the certificates to Mozilla and Chrome, and I can access the link under SSL, but I need to connect to a server within an Java Web Application, and I have to import de certificate ...
2
votes
2answers
687 views

SSL not working on eth0

All secure connections like https, ssh are not working when I connect through eth0. However they work perfectly fine when connected through wireless. Is this some issue with certificates in the ...
2
votes
0answers
460 views

pptp vpn with certificate [closed]

I want to connect to a windows pptp vpn server which accepts only connections with a CA certficate. From windows im able to do it easily (since its windows of course and native supported) but from my ...
1
vote
1answer
233 views

Certificate logins to servers

I have some ubuntu cloud servers running and has the iptable rules applied on them to allow only few ip addresses to connect via ssh. I know how to generate SSH-key for connecting to server ...