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Author: nsc

  • Cracking the RSA keys (Part 2 – generating the private key)

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    Previous part: Part 1 – Cracking the RSA keys (Part 1 – getting the private exponent) PART 2 For a private key generation, we need to create an asn1parse.txt file with the contents of: asn1=SEQUENCE:rsa_key [rsa_key] version=INTEGER:0 modulus=INTEGER:0 pubExp=INTEGER:0 privExp=INTEGER:0 p=INTEGER:0 q=INTEGER:0 e1=INTEGER:0 e2=INTEGER:0 coeff=INTEGER:0

  • Cracking the RSA keys (Part 1 – getting the private exponent)

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    The whole idea of the RSA private key is the hardness of factorisation of two very large prime numbers. That’s why recommended RSA keys are >2048bit long. I won’t get into RSA details itself. If You need any info, it’s here: WIKI For a sake of demonstration, 256bit public_key will be used. With the current…

  • Add a separate SSL certificate for a subdomain in Directadmin

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    Directadmin doesn’t have possibility to add SSL certificate for a subdomain, unless You add it as a separate domain in domain control. You may also use separate SSL certificates by creating a custom httpd (or nginx, but it would require to change the CAROOT line) file in user configuration dir i.e. loginroot.com.cust_httpd (or loginroot.com.cust_nginx if…

  • Wrong LSAPI header type: 6 instead of expected 7

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    If You are getting this error after update: [Thu Jul 09 13:32:08.465065 2015] [lsapi:error] [pid 467230:tid 140242392512256] [client 10.3.13.37:65135] [host loginroot.com] Backend error on sending request(GET / HTTP/1.1); uri(/) content-length(0) (lsphp is killed?): Wrong LSAPI header type: 6 instead of expected 7 That’s because cloudlinux developers modified their lsapi code, and didn’t add variable default…

  • DBD::mysql perl module hasn’t been fully installed

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    DADA mail error: [Wed Jun 24 11:35:49 2015] mail.cgi: install_driver(mysql) failed: Can't locate DBD/mysql.pm in @INC (@INC contains: ../../ ../../perllib /sw/lib/perl5/5.8.6/darwin-thread-multi-2level /sw/lib/perl5 ../../DADA/perllib ../../../ ../../DADA ../../../DADA/perllib ../../../perllib ./ ../ ./../../DADA /home/login/domains/loginroot.com/public_html/mailinglist/DADA/perllib /home/login/domains/loginroot.com/public_html/mailinglist /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 . /home/login/perl5/lib/perl5 /home/login/perl5/lib/perl5/x86_64-linux-thread-multi /home/login/perllib /home/login/perl/home/login/domains/loginroot.com/public_html/mailinglist/DADA/perllib /home/login/perl/home/login/domains/loginroot.com/public_html/mailinglist /home/login/perl/usr/local/lib64/perl5 /home/login/perl/usr/local/share/perl5 /home/login/perl/usr/lib64/perl5/vendor_perl /home/login/perl/usr/share/perl5/vendor_perl /home/login/perl/usr/lib64/perl5 /home/login/perl/usr/share/perl5 /home/login/perl.) at (eval 20) line…

  • wsgi_python.h missing

    wsgi_python.h missing

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    /var/www/build/libtool –silent –mode=compile gcc -std=gnu99 -prefer-pic -DLINUX -D_REENTRANT -D_GNU_SOURCE -g -O2 -pthread -I/usr/include/apache -I/usr/include/apache -I/usr/include/apache -g -O2 -I/usr/include/python2.7 -DNDEBUG -c -o src/server/mod_wsgi.lo src/server/mod_wsgi.c && touch src/server/mod_wsgi.slo In file included from src/server/mod_wsgi.c:22:0: src/server/wsgi_python.h:24:20: fatal error: Python.h: No such file or directory compilation terminated. apxs:Error: Command failed with rc=65536 . make: *** [src/server/mod_wsgi.la] Error 1

  • Yubikey 2 factor authentication for wordpress (U2F)

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    At last my Yubikey arrived! Yubikey-edge to be more precise. First thing I wanted to do is to enable 2factor authentication for this blog :)

  • The host at this IP address is infected with the CryptPHP PHP malware.

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    Have anyone else got the same problem with cbl.abuseat.org?? Full message is here: The host at this IP address is infected with the CryptPHP PHP malware. CryptoPHP is a threat that uses backdoored Joomla, WordPress andn Drupal themes and plug-ins to compromise webservers on a large scale. More information about this threat can be found…

  • Cacti Allowed memory size of 123456 bytes exhausted

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    If You get such error on after installing cacti, and no mater how big memory_limit: [Mon Nov 17 22:41:49.267134 2014] [:error] [pid 24152] [client 78.58.224.49:41062] PHP Fatal error: Allowed memory size of 2147483648 bytes exhausted (tried to allocate 130968 bytes) in /usr/share/cacti/lib/adodb/adodb.inc.php on line 833 Please make sure if You imported the cacti sql file.…

  • How-to: open/close the luks partition

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    The title is pretty self-explanatory :) To open the luks partition: cryptsetup -v luksOpen /dev/local/home home_crypted And to close it: cryptsetup -v luksClose home_crypted