SSL (the predecessor of TLS) is a cryptographic protocol designed to provide communications security over a computer network. It is the S in HTTPS, IMAPS, SMTPS, etc.

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Unable to access CUPS /admin page. A TLS fatal alert has been received

We have several servers where the CUPS /admin interface is utilized. It was brought to my attention that several of them are no longer functional. The config is fairly simple and I cannot find a ...
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SSL error with rvm and ruby 2.2.2

I am getting the below error while doing a api call from one app to another: SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed We are using using rvm ...
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16 views

cyrus-imapd & SSL

I have an IMAP server running on Fedora (cyrus-imapd-2.4.18-1.fc23.i686) with the following configuration: $ cat /etc/imapd.conf configdirectory: /var/lib/imap partition-default: /var/spool/imap ...
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1answer
25 views

Apache Listening Port

I need some help. I'm trying to set up a web interface for a cloud system and I have used this conf (provided by the vendor) <VirtualHost *:443> ServerName sxweb.foo.com ServerAdmin ...
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1answer
936 views

svn: SSL is not supported

I am trying to check out code on a Unix box in the Z shell. When I run the following command svn checkout https://svn.example.net/svn/trunk/source build I get the following error message: svn: SSL ...
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2answers
9k views

Apache not listening on port 443

I've purchased an SSL and I'm trying to set it on a browser. The port is forwarded in the router to the server, and I believe that SSL certificate is installed correctly (the apache starts OK). I ...
2
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0answers
21 views

Apache Reverse Proxy - How to disable SSL frontside but allow SSL backside

I have an Ubuntu 14 LTS / Apache 2.4 server with mod_proxy/mod_rewrite configured for use as a reverse proxy. One of the servers on the backside is too old to support TLS. I would like to disable ...
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3answers
998 views

Dovecot with CAcert certificates, Outlook can't connect to IMAP

I have quite standard installation of postfix and dovecot on Ubuntu 12.10. I generated my own certificates and got them signed by cacert.org. The process of creating certs was like below: openssl ...
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91 views

Enabling SSL on ubuntu with apache2

I'm trying to get SSL working on my ubuntu VM. I'm going through the steps in this link but when I got to reload the apache service after enabling default-ssl.conf I'm getting errors in the log: [...
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21 views

Fatal error starting apache2 with mod_sssl [on hold]

I followed the instructions on this link to INSTALL SSL ON Ubuntu 14.04. After completing everything I get the following in the error log: [Fri Jun 24 19:10:26.262361 2016] [mpm_prefork:notice] [pid ...
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0answers
15 views

Do you need to disable SPDY to block SSL websites with Squid?

If a computer connects to squid, and squid does ssl-bump or peek-n-splice or DynamicSslCert to block access to certain HTTPS websites at certain times of day should SPDY be disabled in the browser? ...
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1answer
150 views

apache2 no listening sockets available, but nothing listening on the port

I'm trying to setup SSL on an ubuntu server. I've generated a key and certificate with the following commands openssl genrsa -out mydomain.key 1024 and openssl req -new -key mydomain.key -x509 -out ...
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1answer
250 views

Use HAProxy to tunnel SSH through https

I have a server with Apache webserver on it and many websites running on http (port 80) and https (port 443). I would like to use a proxy on port 443 in between Apache and the user. In this page, ...
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1answer
2k views

How to check mod_ssl.so version?

I'm running Apache 2.2.3 and would like to find out, how to check version of mod_ssl.so and if this module can support TLSv1.1 and TLSv1.2. Regards
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0answers
17 views

CURL SSL Handshake error [closed]

Some sites disable support for SSL 3.0 (possible because of many exploits/vulnerabilities), so it's possible to force specific SSL version by either -2 / --sslv2 or -3 / --sslv3.  Also -L is worth a ...
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2answers
44k views

How to fix curl sslv3 alert handshake failure?

I'm trying to curl HTTPS website in the following way: $ curl -v https://thepiratebay.se/ However it fails with the error: * About to connect() to thepiratebay.se port 443 (#0) * Trying 173.245....
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2answers
613 views

Cannot disable SSLv3. Followed guides and forum posts

I am having no luck disabling SSL3 on CentOS 6. I have followed guides and forum posts to no avail. grep -Ri SSLProtocol /etc/httpd Binary file /etc/httpd/modules/mod_ssl.so matches /etc/httpd/conf.d/...
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2answers
587 views

How to “get” a HTTPS website running? [closed]

I have a website serving several pages that can be reachable via HTTP. How can I make these sites available via standard HTTPS? (not self-signed). What are the steps? (go to a CA, and then?) Can ...
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1answer
683 views

ngircd / xchat SSL issues

I'm trying to setup a ngircd IRC server on Fedora 18 (which was installed using yum), but I'm having some SSL issues. I can connect to the server locally and remotely if I choose to "accept invalid ...
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0answers
30 views

502 Proxy Error - PUT request to MDM OSX Server via apache ProxyPass on ubuntu 14

I am trying to set up a OSX Server behind an ubuntu server with apache2 and vhosts which uses proxypass to send requests to my OSX server. Most request work like they should but I am unable to make ...
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1answer
39 views

Images and Stylesheets not loading from squid due to a bad certificate?

I just setup Gate Sentry on a Raspberry PI 3, and it contains Squid 3 as part of it's proxy chain. It also utilizes ssl bump and certain websites that use SSL (usually big ones, like Facebook and ...
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0answers
21 views

Apache 2 Debian SSL Certification not exist

I'm not really good with Apache and that is the reason why I'm writing to you. I have installed a web server in SSL following some indication from the software vendor. When I restart the service I ...
18
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3answers
760 views

Untrusting an intermediate CA in Linux?

From this blog. Intermediate CAs are certificates signed by a root CA that can sign arbitrary certificates for any websites. They are just as powerful as root CAs, but there's no full list of ...
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0answers
30 views

Can't disable TLSv1 and RC4-SHA

I need to remove TLSv1 and RC4-SHA support in Centos 7. I have these lines in my ssl.conf SSLProtocol +TLSv1.2 +TLSv1.1 -TLSv1 SSLCompression off SSLHonorCipherOrder on SSLCipherSuite "ECDHE-ECDSA-...
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1answer
34 views

How do I configure Apache to serve https?

After many hours I finally managed to configure Apache to use my SSL certificate but i just found out that there is something wrong in my configuration. If I try to reach my domain from Google Chrome ...
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877 views

Cant use https on localhost

I am unable to use https on my localhost testmachine. I cant figure out the problem on my own so here is what i did: I placed the following to files in sites-available : 000-default.conf <...
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0answers
7k views

CentOS 7 httpd failed to make connection with backend

In a CentOS 7 server with apache httpd 2.4 set up as an ssl reverse proxy for tomcat, I am getting an error indicating that httpd is not able to connect with tomcat. How can I resolve this error so ...
3
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1answer
18k views

Apache “RSA server certificate CN does not match server name” error

I have an apache installation with some name-based vhosts and a SSL certficate with CN=maindomain.com and DNS Alternative Names for the all the vhosts (sub)domains. However, this setup gives warnings ...
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1answer
25k views

Apache - Generate private key from an existing .crt file

I have some apache instances running smoothly with a home-made generated certificate. Now I have to use a provided certificate, but what I had sent is only a .crt file. In tried to copy it into the ...
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1answer
22 views

How to extract RSA keys from Apache

I am testing some old vulnerabilities related to SSL/TLS, and would like to know how to extract temporary RSA keys from Apache. The particular vulnerability I am testing is the FREAK attack. I ...
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1answer
47 views

How can I configure TLS1.1 on LFTP?

Could you please help me with the steps to configure TLS1.1 for lftp?Also how can I check which version of TLS is running on my Redhat Linux OS ?
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2answers
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SSL Strip Attack: Confusion with “echo 1 > /proc/sys/net/ipv4/ip_forward”

In the SSLStrip attack, one has to enable IP forwarding using the command : echo 1 > /proc/sys/net/ipv4/ip_forward I understand this command enables the host to work as a router forwarding ...
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1answer
38 views

Using iptables to stop brute force attacks on a Apache https site

I have a TLS site Apache which uses Basic Authentication to protect resources. I'm trying to setup an iptables rule to prevent brute force attacks on port 443, so I've added the following iptables ...
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1answer
230 views

TLSv1.2 support in CentOS 5.8

Right now I can't access HTTPS site from PhantomJS headless WebKit browser because of TLSv1.2 In my CentOS 5.8 I have following OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008 verison installed. I think I ...
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1answer
2k views

Does Apache 2.2.3 support TLSv1.1 and TLSv1.2?

How can I find out if Apache 2.2.3 supports TLSv1.1 and TLSv1.2? If possible how can I implement it?
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45 views

sudo update-ca-certificates always add new cert

When I run sudo update-ca-certificates on debian 8 it is always add one new cert. it is normal behavior? What's can be wrong? ar@work:/tmp$ sudo update-ca-certificates Updating certificates in /etc/...
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63 views

OpenLDAP 2.4: How to correctly implement TLS (ldaps) on CentOS 6.7

My environment: CentOS 6.7 / OpenDLAP 2.4 slapd -VV @(#) $OpenLDAP: slapd 2.4.40 (Nov 10 2015 09:41:16) $ mockbuild@c6b8.bsys.dev.centos.org:/builddir/build/BUILD/openldap-2.4.40/openldap-2....
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3answers
158 views

How to check for sslv2 from a remote server?

I have a server which I want to check if it supports sslv2. from a remote machine I do the following: openssl s_client -ssl2 -connect something.somethingcool.com:443 But this returns: unknown ...
3
votes
1answer
235 views

Can ssl folder be removed without causing conflict

In /etc/httpd the ssl folder, if that is removed does that mean any site on the server if directed to https:// will not throw warning? I got a certificate a while back but soon realized if not a paid ...
2
votes
1answer
437 views

Generate a certificate signing request for an SSL server

I'm running CentOS 6.2 LAMP and I've just purchased an SSL certificate via Namecheap that I'm trying to install on my server. This is the certificate I purchased. How do I complete this process ...
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2answers
4k views

Redhat httpd start failed showing “ELinks: Connection refused”

I'm on RHEL 6.5 and Apache 2.2.15. And now applying a trusted SSL on the Server. After adding the respective SSL related Certs and files, my Apache is NOT starting up anymore. Here are some outputs: ...
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1answer
414 views

Can't disable SSLv3 in Apache + mod_nss

I am trying to implement TLS through mod_nss in Apache (RHEL 7). As per the documentation, I have installed mod_nss and removed mod_ssl. I have followed the steps outlined in the documentation (see ...
5
votes
2answers
42k views

How to configure SSL in apache?

I have installed apache in RHEL 6. Everything is working fine. What all changes and configurations should be done to use https://localhost:443/. If I change the "Listen 80" to 443 it is throwing an ...
5
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2answers
6k views

How can I start Apache on Arch Linux w/systemd using passphrase protected SSL keys?

I'm relatively new to using Arch Linux and think I must be missing the obvious way to do this correctly, but –short of starting the daemon on my own– I can't figure out how to get passphrase protected ...
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3answers
6k views

Apache disable SSLv2 SSLv3

I know that there are some Questions around here that comes along with this Topic. But I really don't know what I can do anymore. So here's the point: I am using Apache 2.2.22 on OpenSuse 12.3. The ...
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3answers
70k views

apache2 Invalid command 'SSLEngine'

When I restart httpd, I get the following error. What am I missing? [root@localhost ~]# service httpd restart Stopping httpd: [ OK ] Starting httpd: ...
57
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7answers
90k views

How to disable SSLv3 in Apache?

Everybody seems to be talking about the POODLE vulnerability today. And everybody recommends disabling SSLv3 in Apache using the following configuration directive: SSLProtocol All -SSLv2 -SSLv3 ...
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1answer
249 views

SSL-encrypted proxy server for war files in CentOS 7

How can I configure a CentOS 7 web server to serve only SSL-encrypted content from war files, with tomcat running behind a proxy server? I imagine this involves using firewalld, https, and tomcat. ...
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1answer
199 views

Install ssl on CentOS Apache server

I installed Apache by using sudo yum -y install httpd instead of using wget and installing that way. This means that it has been set up differently. I'm now trying to install ssl by using sudo yum ...
2
votes
1answer
300 views

HTTPS not working on CentOS Apache 2.4

I have created a key and self-signed certificate and moved them to /etc/httpd/conf/ My ssl.conf is here: http://pastebin.com/gsQbKY67 The ssl_module (shared) is there when I try httpd -M Output ...