With CVE-2014-8730 the POODLE attack is back. However with the right config it is not an issue. https://mariobrandt.de/archives/apache/current-2013-bullet-proof-ssl-config-779/ is still the right config for this :) Make sure that your server is bullet proof, too.
nano goto line number
It is very hidden how to go to a line number in linux nano editor
- strg + w
- strg + t
- enter Line number
Apache 2.4 global IP blocking list for all vhosts
It is a pain in the ass to set a bunch of IP adresses in each vhost or where ever you need it. But with Apache 2.4 it is quiet easy to have a global list and use that anywhere in your config.
Define BADIPS "188.40 46.4 176.9 46.166 46.21 78.46 91.207.7.21 0.0.0.0 91.207.7.182"
<VirtualHost *:80>
ServerName mariobrandt.de
ServerAlias www.mariobrandt.de
DocumentRoot /var/www/
FileETag MTime Size
<Directory /var/www/>
Options Indexes FollowSymLinks Multiviews ExecCGI
AllowOverride None
<RequireAll>
Require all granted
Require not ip ${BADIPS}
</RequireAll>
AddHandler fcgid-script .php
FCGIWrapper /usr/bin/php5-cgi .php
</Directory>
ErrorLog /var/log/apache2/mario_error.log
LogLevel warn
CustomLog /var/log/apache2/mario_access.log combined
</VirtualHost>virtualbox not identified network
When you install Virtualbox on Windows Vista or Windows 7 it will install an additional virtual network adapter on the host system. This “Virtualbox Host-Only Adapter” causes the Windows network detection to show an additional “unidentified” network. And while this “unidentified” network is present the windows firewall settings will stay on “Public”. This behavior is undesirable because you want to be able to switch your firewall settings based on your location (home/work/public).
The solution: Edit your registry and make that networks a NdisDeviceType. Open regedit and navigate to HKLM\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002BE10318}
Browse through the subkeys (named 0000, 0001, etc) until you find the subkey containing the virtualbox network adapter, this is the one where the “DriverDesc” key has “VirtualBox Host-Only Ethernet Adapter” as value. Add a new DWORD value with a name of “*NdisDeviceType” and a value of “1” Disable en re-enable the virtuabox host-only network adapter.
Why that works? From http://msdn.microsoft.com/en-us/library/bb201634.aspx
*NdisDeviceTypeThe type of the device. The default value is zero, which indicates a standard networking device that connects to a network. Set *NdisDeviceType to NDIS_DEVICE_TYPE_ENDPOINT (1) if this device is an endpoint device and is not a true network interface that connects to a network. For example, you must specify NDIS_DEVICE_TYPE_ENDPOINT for devices such as smart phones that use a networking infrastructure to communicate to the local computer system but do not provide connectivity to an external network.
mod_fcgid is polluting my error log on windows
Well I really like mod_fcgid with PHP on my Apaches on Windows. But since every time a PHP process get it’s signal to die, mod_fcgid creates on windows an entry in the error log cause the graceful stop always fails.
There in a patch for that! I made a bug report (54597), but it didn’t go in the code yet. If you wanna patch it yourself, here it is.
--- modules/fcgid/fcgid_pm_main.c (revision 1448988)
+++ modules/fcgid/fcgid_pm_main.c (working copy)
@@ -333,10 +333,17 @@
current_node->proc_pool);
}
else {
+#ifndef WIN32
ap_log_error(APLOG_MARK, APLOG_WARNING, 0, main_server,
"mod_fcgid: process %" APR_PID_T_FMT
" graceful kill fail, sending SIGKILL",
current_node->proc_id.pid);
+#else
+ ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, main_server,
+ "mod_fcgid: process %" APR_PID_T_FMT
+ " graceful kill fail, sending SIGKILL",
+ current_node->proc_id.pid);
+#endif
proc_kill_force(current_node, main_server);
}
}apache HTTP Strict Transport Security with long duration
HTTP Strict Transport Security (HSTS) is an opt-in security enhancement that is specified by a web application through the use of a special response header. Once a supported browser receives this header that browser will prevent any communications from being sent over HTTP to the specified domain and will instead send all communications over HTTPS. It also prevents HTTPS click through prompts on browsers.
How to achieve apache with a bullet proof SSL config and HTTP Strict Transport Security (HSTS) with long duration
Here is goes
<IfModule mod_headers.c> Header always set Strict-Transport-Security "max-age=15553000; includeSubDomains" </IfModule> SSLUseStapling on SSLSessionCache shmcb:/opt/apache2/logs/ssl_gcache_data(512000) SSLStaplingCache shmcb:/opt/apache2/logs/ssl_stapling_data(512000) SSLOptions +StrictRequire +StdEnvVars -ExportCertData SSLProtocol -all +TLSv1 +TLSv1.1 +TLSv1.2 SSLCompression Off SSLHonorCipherOrder On SSLCipherSuite ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:!LOW:!MD5:!aNULL:!eNULL:!3DES:!EXP:!PSK:!SRP:!DSS
This gives a A+ at Qualys SSL Labs SSL Test.
Find the largest files on your linux system
Find the largest files on your linux system
cd /
du -k | sort -n | perl -ne 'if ( /^(\d+)\s+(.*$)/){$l=log($1+.1);$m=int($l/log(1024)); printf ("%6.1f\t%s\t%25s %s\n",($1/(2**(10*$m))),(("K","M","G","T","P")[$m]),"*"x (1.5*$l),$2);}'
current 2013 bullet proof SSL config
Now in December 2013 the best available SSL config with a 4096 bit RSA Key and httpd Apache 2.4.7 with OpenSSL/1.0.1e.
SSLSessionCache shmcb:/opt/apache2/logs/ssl_gcache_data(512000) SSLOptions +StrictRequire +StdEnvVars -ExportCertData SSLProtocol -all +TLSv1 +TLSv1.1 +TLSv1.2 SSLCompression Off SSLHonorCipherOrder On SSLCipherSuite ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:!LOW:!MD5:!aNULL:!eNULL:!3DES:!EXP:!PSK:!SRP:!DSS
YES Windows XP is no longer supported with this. But for me there is no more need to do so.
The SSL Test Lap Test shows a very good result. The Cipher Strength is at 100%. So any browser will use a 256 bit encrypted connection to that server.
For female geeks
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Good bye spam!
Since the spam increased that much up to 10k spam each week I searched for a solution. It came out that the combination of Akismet and Stop Spammer Registrations Plugin made it possible to have only 1 or 2 spam comments in the queue. I love it!
Good bye de@r spam!