Tagged Questions

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.

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12 views

How can I explicitly disable TLS when sending to one specific recipient?

I have a SendMail 8.14 server deployed in the middle of an SMTP workflow (Outbound mail looks like Exchange -> SendMail -> Appliance -> Internet) I have TLS configured for the first three hosts. ...
2
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1answer
24 views

2008 R2 TLS 1.2 enabled in registry, rebooted, but not functioning

Yes, I rebooted the server. Several times. This actually affects both TLS 1.1 and 1.2. The only one currently working is 1.0. I followed the instructions here: http://support.microsoft.com/kb/245030 ...
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0answers
17 views

How to disable TLS v1 in Apache v2.2 (Openssl 1.0.1)

I’ve been asked to disable SSL v3 and TLS v1 on our web servers. But Apache reports: [error] No SSL protocols available [hint: SSLProtocol] when I include –TLSv1 in the SSLProtocol stanza below. ...
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1answer
15 views

IIS 7.5 FTP with ftps (SSL)

I have an FTP server that uses IIS 7.5, running on a Windows Server 2008 machine. When I try to connect to this server using filezilla with implicit TLS (ftps://), I always recieve this error: GnuTLS ...
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0answers
28 views

How to configure Coldfusion 10 CFLDAP to use TLS instead of SSL2

We are using CFLDAP to authenticate users from a remote system. The remote system has now shut down SSL 2 and 3 due to the POODLE issue. Is there a way to configure either Coldfusion or Tomcat to use ...
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2answers
110 views

Disabled SSLv3 to combat Poodle now cannot connect to SQL “Connection forcibly closed by remote host”

I have disabled SSL3 on my web server to combat the Poodle Vulnerability and now I am unable to connect to my SQL server using SQL Authentication. I just get "Connection forcibly closed by remote ...
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2answers
49 views

Is it possible to set SSL/TLS version HTTP header with Apache which an backend application can use?

There is one service on a virtual machine with a dedicated IP that required to be accessible via SSLv3 (WinXP with IE6 clients). I moved that service several several years ago to a that virtual ...
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0answers
26 views

GnuTLS error -15: An unexpected TLS packet was received

I have been trying to set up VSFTPd on my CentOS 7 machine, and I have been running into an issue when connecting through FileZilla. I keep receiving error -15 regarding the TLS packet. The following ...
3
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3answers
86 views

Postfix and compromised accounts

First of all, sorry for my English. I think it's very common to set the permit_mynetworks and permit_sasl_authenticated restrictions on first positions of the smtpd_recipient_restriction list, but, ...
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0answers
37 views

PHP5.6 SMTP “Could not connect to host” on SSL and port 465, but TLS on port 587 works - why? [closed]

I'm getting the error, "SMTP Error: Could not connect to SMTP host.", when sending emails via Gmail following an upgrade from PHP5.2 to PHP5.6. If I switch back to PHP 5.2 without changing the smtp ...
0
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1answer
43 views

Ubuntu SSL connection with TLS connection error [closed]

I am using Ubuntu 12.04, installed at VirtualBox (Mac) using vagrant. I am not using any proxy server. In my company network, when I try curl -1vsS ...
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1answer
155 views

Internet Explorer 8 - TLS Fatal Error Close Notify - Oracle HTTP - Server Apache 2.2.22.0

I applied the POODLE fix for Apache via "SSLProtocol All -SSLv2 -SSLv3" in the ssl.conf file for our Apache server but am having issues with the CAC Client authentication via "SSLVerifyClient ...
1
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1answer
27 views

Determining if an SSL cert is affected by SHA-1 phase-out

Google chrome will start to warn users that their SSL connection is insecure under the following conditions: The cert uses the SHA1 hashing algorithm, and The cert expires on or after 2016-01-01 (or ...
1
vote
1answer
22 views

Does SendMail Support TLS Certificates With Subject Alternative Names?

CentOS 5.x Does SendMail support TLS certificates with Subject Alternative Names? I have a set of sendmail servers and would like to use the same certificate for all of them (to save time and ...
1
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1answer
58 views

Can TLSv1 / SNI be blocked by the network? (routers, firewalls, etc)

Our web site serves static content through a content delivery network (AWS CloudFront) which is configured to respond to a number of CNAMEs and use our SSL wildcard certificate for these hostnames. ...
2
votes
1answer
51 views

Centos SMTP error command not implemented

I have a vps with Centos 6.5 and postfix installed. When I want to connect to a smtp server like google or mail gun, I get the error 502 command not implemented. Can anybody help me please? This is ...
1
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1answer
67 views

Is it possible to configure ECDHE-ECDSA with mod_gnutls and Apache 2?

I'm trying to configure my Debian box with mod_gnutls implementation (for sake of SNI), to achieve best possible results in TLSv1.0/1.1/1.2 (disregarding both SSL2 and SSL3) However it seems to me, ...
0
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0answers
13 views

Is there a way using the shell to install certificates and enable encryption in 389 directory server?

My client has a 389 directory server installation that I discovered does not have SSL enabled on it. I would like to do this but I've always had to do it using the Admin console. At some point they ...
0
votes
1answer
65 views

openssl s_client shows TLS working on ports 993,465, but mail clients time out on connection attempts

With the recent scares over POODLE, we have begun the process of changing everyone's connections to TLS, instead of SSL... While this process went smoothly for HTTPS, it seems that Dovecot & ...
4
votes
2answers
308 views

How can I verify if TLS 1.2 is supported on a remote web server from the RHEL/CentOS shell?

I'm on CentOS 5.9. I'd like to determine from the linux shell if a remote web server specifically supports TLS 1.2 (as opposed to TLS 1.0). Is there an easy way to check for that? I'm not seeing a ...
0
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1answer
43 views

Tomcat 7 URL rewrite from other domain

On a tomcat 7 server, we've configured a https connector, the TLS certificate is valid for an URL like www.example.com . Now we want to change the A record of one of our subdomains (like foo.bar.com) ...
0
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0answers
25 views

SSL with rsyslog on CentOS - protocol family not supported?

For the life of me, I can't seem to get rsyslog to have imrelp use TLS(SSL). I've engaged the good people on http://kb.monitorware.com/post25017.html#p25017 to try and chase the rsyslog angle, but I'm ...
4
votes
1answer
76 views

Is it possible to configure IIS to redirect based on the SSL cipher suite used for the connection?

With the announcement of POODLE, I would like my servers to accept SSL3.0 connections but have them serve a page which indicates that the user should update to a newer browser with TLS support. It ...
1
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1answer
168 views

Is it possible to enable TLS v 1.2 in Debian squeeze

I am currently running a Debian Squeeze server with Apache. My OpenSSL version is 0.9.8, and I would like to get up to a version capable of running TLS v 1.2. So far my research shows that this is ...
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0answers
38 views

LDAP Replica with TLS

I'm having trouble to run the replica LDAP with TLS, without TLS, all works !! Provider and Consumer are identical CentOS release 6.5 rpm -qa | grep ldap openldap-clients-2.4.23-34.el6_5.1.x86_64 ...
0
votes
1answer
97 views

Using self signed certificates with Tigase XMPP server

I am trying to use a self signed certificate, generated using http://docs.tigase.org/tigase-server/5.3.0/adminguide/#_server_certificates, to start the XMPP server. However, the server does not start ...
1
vote
1answer
55 views

Why does Windows CA Server issue multiple certificates for the same user?

I am currently implementing an EAP/TLS WIFI implementation to replace our EAP/MSCHAP2 wifi implementation. I am using Windows Server 2008 and I've installed a certificate authority. User certificates ...
1
vote
1answer
192 views

phpldapadmin not being able to connect to LDAP server using ldaps

Update I have been able to reproduce the problem in a smaller scale using a simple php script that attempts an LDAP bind. From that script I got more debug output which lets me identify the actual ...
0
votes
1answer
38 views

Exim says “The request is invalid” during gnutls_handshake

I have Debian wheezy and setup Exim to listen to port 587, where users can authenticate using TLS. I'm testing it with Thunderbird 31.1.2. When I try to send a message, Thunderbird displays this: ...
0
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1answer
61 views

postfix cannot communicate with target server via TLS/SSL

I am able to connect my postfix server with TLS. All things are set up. But when i send a message with this secure connection, target server (for example gmail) receive my message without TLS/SSL ...
2
votes
1answer
170 views

Specify a SHA-1 or SHA-2 cert depending on client abilities

With SHA1 certs being deprecated by major browsers it seems wise to get a SHA2 signed cert. But in doing so you will be locking out IE6 users. While for most people this won't be an issue in some ...
0
votes
1answer
74 views

Exchange TLS Receive Connector Cert

We are using Securence incoming filtering in front of our Exchange 2010 server. It's basically a spam filter. I'm trying to get TLS communication between Securence and our server on incoming ...
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votes
1answer
88 views

How do I set up TLS-PSK with Tomcat [closed]

The Tomcat people won't help me, so I'm hoping someone here will come through. I can't figure out how to set up Tomcat to use pre-shared keys. All the SSL/TLS guides for it assume certificates. Please ...
2
votes
1answer
116 views

Setting up forced/mutual/required TLS with checktls.com, sending works, receiving returns 530 5.7.1 (not authenticated)

I have exchange 2010 on a 64-bit Windows Server 2008 R2 VM. I am using an SSL multi domain certificate from a certificate authority with IIS and SMTP services enabled. My goal is to setup ...
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votes
1answer
69 views

Need Help Forcing SSL for Remote Desktop

I have a standard windows 2008 R2 server (non-domain). I have a web service (non-IIS) I have a certificate issues from "GlobalSign" that came in a .pfx file. It's properties allow for Server ...
1
vote
1answer
33 views

Can TLS certificates be reused on different servers running on same domain/different ports?

I'm a programmer, not a system admin. I have a DreamHost VPS that I screw around with for my personal Website and a number of side projects that are typically just experiments in multimedia through ...
1
vote
1answer
193 views

Can nginx use different protocols for different server blocks?

I'm trying to setup a hostname to demonstrate a poor SSL config and I'm having some issues. I can specify some bad cipher suites, but nginx seems to ignore the protocol selection. server { ...
0
votes
0answers
43 views

SPDY error on all JS files

I've setup nginx with BoringSSL but I seem to have run into an odd problem: Chrome throws a net::ERR_SPDY_PROTOCOL_ERROR for every JavaScript file. I've disabled SPDY to no avail, the error persists ...
0
votes
1answer
63 views

Issues with LDAP authentication over SSL (ldaps)

I'm trying to setup an LDAP server with ldaps support. The server is hosted on ec2 and it has a domain name on route 53. I got an SSL certificate for the route 53 domain (say example.com). When i try ...
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votes
4answers
69 views

Issue TLS without cname

The person that issues TLS certs is telling me he needs the CName of my server to issue a cert after I just gave him the IP address of the webserver. It's an internal project so we didn't get a domain ...
2
votes
1answer
780 views

How can I let nginx log the used SSL/TLS protocol and ciphersuite?

My goal is to ensure proper security for clients connecting to my nginx. I'm following Mozilla's guide to configure TLS properly on my nginx installation, but I don't have an overview of the actual ...
0
votes
1answer
84 views

How do I determine where an SSL certificate is being served from?

I am having the same issue described in this question: IIS 7 Still Serving old SSL Certificate I have replaced an old SSL certificate with a new one and completely removed the old certificate from ...
4
votes
3answers
2k views

Failed tls handshake. Does not contain any IP SANs

I'm trying to set up logstash forwarder, but I have issues with making a proper secure channel. Trying to configure this with two ubuntu (server 14.04) machines running in virtualbox. They are 100% ...
5
votes
3answers
361 views

Monit failing to connect to Dovecot over SSL IMAP

I run Monit to keep check on processes on a Debian server. It's working as normal for all other services (Apache SSL, Postfix, SSH etc.) but Monit's checks on Dovecot are failing repeatedly. I think ...
0
votes
1answer
68 views

Nginx SSL Termination - How to encrypt data to client?

I've setup a Nginx as a HTTP load-balancer with SSL/TLS termination for apache webservers. My question is by using Nginx to terminate ssl how do I encrypt the data back to the browser/client. Does ...
1
vote
1answer
200 views

can't get tomcat to offer TLS_ECDHE_ECDSA_… ciphers

my tomcat (7.0.52) Connector is configured with a cipher list like ciphers="TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, ...
1
vote
2answers
1k views

squid ssl bump sslv3 enforce to allow old sites

Important: I have this question on stackoverflow but somebody told me this is more relevant place for this question. Thanks I have configured squid(3.4.2) as ssl bumped proxy. I am setting proxy in ...
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votes
1answer
1k views

Ubuntu 14.04, OpenLDAP TLS problems

So i have set up an openldap server using this guide here. It worked fine. But as i want to use sssd i also need TLS to be working for ldap. So i looked into and followed the TLS part of the guide. ...
2
votes
1answer
207 views

How to set RDS security layer in Windows Server 2008 R2 via PowerShell

I'm looking for a way to set security layer setting in Windows Server 2008 R2 RDS via PowerShell (other ways to do in programmatically will do also but PowerShell is preferable). Via GUI it can be set ...
3
votes
2answers
246 views

Is it possible to create DANE TLSA records when the DNS server doesn't support it?

I'd like to set up DANE for the domain which handles my email. My domain is registered at OVH, and I'm using their anycast DNS servers. They do support DNSSEC, but not TLSA records. Is there a ...