Transport Layer Security is a cryptographic protocol for encrypting and authenticating network communications, and replaces SSL. It is commonly used to secure Internet protocols such as HTTP.
Questions tagged [tls]
573 questions
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postfix, TLS and rapidssl - "verify error:num=19:unable to get local issuer certificate"
I have a certificate from rapidssl. I run this command:
openssl s_client -showcerts -connect smtp.server.com:465
I get this error:
verify error:num=19:self signed certificate in certificate chain
Here is what I have in my postfix main.cf, and what I…

technobuddha
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2 answers
Exchange - inbound email only works from some servers
I am having a problem where inbound mail from outside only works when sent from certain hosts.
For example, when I send myself an email from my personal gmail account all is well, as the logs show:
2012-09-05 18:14:16 209.85.223.175…

Kev
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Can't send mail from Windows Phone (Postfix server)
Some background:
I have a Dovecot/Postfix setup to handle email for a few domains. We have imap and smtp setup on various devices (Macs, iPhones, PCs, etc) and it works no problem.
I've recently bought a Windows Phone and I'm trying to setup the…

Dominic Williams
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sasl and tls with dns load balancing
I am using DNS load balancing in my centOs 5 server.The mail sent to the load balancer server are balanced by sending them to 4 more servers who then pass the mails to their destinations in the network.The mails are generated by a Php script which…

achal tomar
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1 answer
obtaining nimbuzz server certificate for nmdecrypt expert in NetMon
I'm using Network Monitor 3.4 with the nmdecrypt expert. I'm opening a nimbuzz conversation node in the conversation window and i click Expert-> nmDecrpt -> run Expert
that shows up a window where i have to add the server certificate. I am not sure…

lurscher
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sasl and tls postfix
Can anyone suggest me a proper tutorial to configure postfix SASL and tls in my centOs 5 server.
I need this to authenticate clients on a different network to send mail from my mail server and prevent problem of open relay.

achal tomar
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Apache mod_ssl TLS channel dying in 5 seconds - how do I extend that timeout?
I'm an IIS admin. I've done the best I can with mod_ssl documentation, google, etc, and can't find anyone else who's even experienced my problem, much less found a solution. That, of course, makes me wonder whether I'm even understanding it…

codepoke
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Why is the SMTP service locking the files for several hours?
We are currently using the SMTP service in IIS 6.0 to send mails. All incoming relay mails are monitored by another service which processes the relay mail and deletes/moves it. It works fine!
We have then installed a certificate to be able to enable…

Kim
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ldapsearch reads cert and lies about it, won't connect as a result
I'm pulling my hair out over ldap playing well with SSL/TLS. I can confirm that the server is listening AND responding on port 636 to SSL request. openssl s_client -connect freia.fqdn:636 -showcerts produces expected output, gnutls-cli-debug -p636…

EricR
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4 answers
SSL/TLS Version in Nginx
I installed Nginx and enabled SSL.
server {
server_name vorb.de;
listen 443;
root /var/www/vorb.de/pub;
ssl on;
ssl_certificate cert.pem;
ssl_certificate_key cert.key;
gzip on;
[…]
}
Everything is…

pvorb
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Setting up libvirt with remote access on gentoo: not listening tls port
I'm trying to set up libvirtd on my headless gentoo server. I'd like to have remote control via tls. I've followed libvirt remote access guide, but it don't work for me: client virt-manager shows following error:
unable to connect to libvirtd at…

rvs
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2 answers
Ubuntu server 10.10 OpenLDAP 2.4.23 gnutls 2.8.6 keep getting "TLS init def ctx failed: -1"
So I've read about the Debian/Ubuntu distros migrated to gnutls implementation for TLS/SSL. Fine with me, but I've spent the last week trying to configure OpanLDAP with TLS/SSL without success, keep getting stuck at "TLS init def ctx failed: -1"…

tw79
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Sending Postfix messages over SSL
I've been trying to setup Postfix on our Debian server and as I understand it, all messages get send via Telnet on port 25.
I've followed these instructions exactly:
http://wiki.debian.org/Postfix
http://wiki.debian.org/PostfixAndSASL
However I get…

EddyR
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2 answers
Connecting to OpenVPN
HI all ,
i've installed OpenVPN and configured it on my server , got all the files needed , i have a mobilephone 'Nokia N900' it has an OpenVPN applet , i uploaded all the files to the mobile and configured the applet , it connects then says "tls…

Rami Dabain
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How to check what features mail server supports?
just curious if there any tool that I can just give a mail server address/ip to and that would give me all features that mail server supports.
Like:
does it support imap/pop3?
Does it support tls/ssl/ntlm encryption?
etc....
thanks:)

Stann
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