SSL connection errors from Apache

Question

I'm running a (self-signed) SSL cert site on Apache/2.2.14 on Ubuntu 10.04, but various browsers are giving errors on half the connection attempts. Just now saw this transient error from Chrome:

"Error 126 (net::ERR_SSL_BAD_RECORD_MAC_ALERT): Unknown error."

Hit refresh and the problem goes away for a while.

wget too:

$ wget --no-check-certificate https://dev.foo.com/deps/
--2010-09-08 19:30:26--  https://dev.foo.com/deps/
Resolving dev.foo.com... 184.72.53.220
Connecting to dev.foo.com|184.72.53.220|:443... connected.
OpenSSL: error:0407006A:rsa
routines:RSA_padding_check_PKCS1_type_1:block type is not 01
OpenSSL: error:04067072:rsa routines:RSA_EAY_PUBLIC_DECRYPT:padding check failed
OpenSSL: error:1408D07B:SSL routines:SSL3_GET_KEY_EXCHANGE:bad signature
Unable to establish SSL connection.

Run it right away again and it works:

$ wget --no-check-certificate https://dev.foo.com/deps/
--2010-09-08 19:30:29--  https://dev.foo.com/deps/
    Resolving dev.foo.com... 184.72.53.220
Connecting to dev.foo.com|184.72.53.220|:443... connected.
WARNING: cannot verify dev.foo.com's certificate, issued by
`/CN=dev.foo.com':
 Self-signed certificate encountered.
HTTP request sent, awaiting response... 200 OK
Length: 3157 (3.1K) [text/html]
Saving to: `index.html'

100%[======================================>] 3,157       --.-K/s   in 0s

2010-09-08 19:30:29 (48.6 MB/s) - `index.html' saved [3157/3157]

In my sites-enabled/default-ssl:

SSLCertificateFile    /etc/ssl/certs/ssl-cert-snakeoil.pem
SSLCertificateKeyFile /etc/ssl/private/ssl-cert-snakeoil.key

The cert:

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

The cert is in turn generated via:

$ make-ssl-cert generate-default-snakeoil --force-overwrite

Apache version.

$ apache2 -V
Server version: Apache/2.2.14 (Ubuntu)
Server built:   Apr 13 2010 20:22:19
Server's Module Magic Number: 20051115:23
Server loaded:  APR 1.3.8, APR-Util 1.3.9
Compiled using: APR 1.3.8, APR-Util 1.3.9
Architecture:   64-bit
Server MPM:     Worker
 threaded:     yes (fixed thread count)
   forked:     yes (variable process count)
Server compiled with....
 -D APACHE_MPM_DIR="server/mpm/worker"
 -D APR_HAS_SENDFILE
 -D APR_HAS_MMAP
 -D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
 -D APR_USE_SYSVSEM_SERIALIZE
 -D APR_USE_PTHREAD_SERIALIZE
 -D SINGLE_LISTEN_UNSERIALIZED_ACCEPT
 -D APR_HAS_OTHER_CHILD
 -D AP_HAVE_RELIABLE_PIPED_LOGS
 -D DYNAMIC_MODULE_LIMIT=128
 -D HTTPD_ROOT=""
 -D SUEXEC_BIN="/usr/lib/apache2/suexec"
 -D DEFAULT_PIDLOG="/var/run/apache2.pid"
 -D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
 -D DEFAULT_ERRORLOG="logs/error_log"
 -D AP_TYPES_CONFIG_FILE="/etc/apache2/mime.types"
 -D SERVER_CONFIG_FILE="/etc/apache2/apache2.conf"

I don't administer the network, hardware, etc. - this is all running on Amazon EC2. I'm not running a load-balancer or anything else in front of the server. I'm making direct TCP connections to that host (AFAIK).

Any ideas? Thanks in advance for any help.

Answer 1

i have a same problem but solution is different, i have an option to use 2 ISPs talktalk and XLN Telecom, whenever i am connected to XLN i get this message but as soon as i switch to talktalk this problem solved straight away, without clearing any cache, cookies or even anything simply change over and refresh page everything start working normally. Even though i have tried IE, G Chrome, Firefox and safari. Using windows 7 64bit. It was working till yesterday, everything start today. is it something to do with my ISPs or anything else?

http://www.onlinecomputertechnician.com/

Answer 2

A lot of things could be going wrong. I don't think anyone can answer this without knowing your network configuration and how Apache is configured, how load balancing is being done, and what type of round-robin its using, as well as other hardware aspects of your network.

To me, it looks like, on the SSL hostname validator, its getting a wierd response for the MAC address?

Answer 3

Have you tried removing the actual cert. Then generating a an entirely new one, with a different name, NOT using the --force-overwrite option?