https://old.andunix.net/ 2026-06-03T20:30:42+00:00 https://old.andunix.net/ https://old.andunix.net/_media/favicon.ico text/html 2014-11-20T08:13:01+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/cryptography/openssl/generate_key Generate a Test Key openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout testkey.key -out testkey.crt Informations about the used arguments from the OpenSSL man page: * req: PKCS#10 certificate request and certificate generating utility. * -x509: this option outputs a self signed certificate instead of a certificate request. This is typically used to generate a test certificate or a self signed root CA. The extensions added to the certificate (if any) are specified in the configurati… text/html 2013-02-18T14:26:27+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/cryptography/openssl/compare_key_with_certificate Compare a Key with its Certificate Credit for this example goes to “Verifying that a Private Key Matches a Certificate” from the University of Wisconsin Knowledgebase. To see if a key server.key belongs to the certificate server.crt, they need to have the same “modulus” and “exponent”. openssl x509 -noout -text -in server.crt openssl rsa -noout -text -in server.key text/html 2013-02-04T22:18:02+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/z/travian/travian_map_download_script Travian Map Download Script This is my script(s) which I use to downoad the map.sql from Travian and import it to the database. config.inc # # database DB_USER="travian" # set this to your database user DB_PASS="travian" # set this to your database password DB_INST="travian" # set this to your database instance # # directories MAP_DIR=${HOME}/opt/travian DUMP_DIR=/srv/glassfish/domains/domain1/docroot/sql # # executables MYSQL="/srv/mysql/bin/mysql --default-character-set=utf8 -u${DB_USER} -… text/html 2013-02-04T22:17:32+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/z/relax/api/base/base-repo-get-value base-repo-get-value Loads a service configuration from the repository and outputs a single value (for the given key) to STDOUT. Usage base-repo-get-value SERVICE KEY * SERVICE: A key of a service definition in the repository. * KEY: The key for the value in the service definition to output. text/html 2019-01-17T19:19:12+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/cryptography/openssl/convert_key Convert a Key Convert P12 to Java Keystore keytool -importkeystore -srckeystore testkey.p12 -srcstoretype pkcs12 -srcalias 1 -destkeystore testkey.jks -deststoretype jks -destalias testkey You can add -deststorepass PASSWORD to set the password on the command line. If you don't, keytool will ask you for a password. text/html 2009-02-18T19:25:00+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/blog/2009/dice_roller Dice Roller I programmend a small dice roller in javascript. You enter the number of dice, sides and the offset and press the button “roll”. The script shows the individual dice and the resulting sum. For convenience, there is a second form where you can just enter the number of dice and press the butten for the type of dice. At the bottom, there are some links of six- and eightsided dice, which are often needed in roleplaying games. You can also create bookmarks for dice, e.g. text/html 2013-02-14T13:15:34+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/ssh SSH Export public key from secret key The public key andunix.pub which belongs to the secret key andunix is extracted. ssh-keygen -y -f andunix > andunix.pub security cryptography ssh sysadmin text/html 2014-04-28T08:07:54+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/cryptography/openssl/debug_server_certificate_from_client Debug Server Certificate from Client Credit for this example goes to “ Checking A Remote Certificate Chain With OpenSSL” from langui.sh. openssl s_client -showcerts -connect www.andunix.net:443 Informations about the used arguments from the OpenSSL man page: * s_client: SSL/TLS client program * -showcerts: display the whole server certificate chain: normally only the server certificate itself is displayed. text/html 2014-01-27T14:49:51+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/tag/key key Pages Bookmarks text/html 2014-02-22T13:16:38+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/virtualbox/cli VBoxManage (The VirtualBox CLI) This is a online reference of the output of VBoxManage without options. Oracle VM VirtualBox Command Line Management Interface Version 4.2.16 (C) 2005-2013 Oracle Corporation All rights reserved. Usage: VBoxManage [<general option>] <command> text/html 2010-04-21T08:17:00+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/blog/2010/memory_usage_solaris_container_zone Memory Usage of a Solaris Container (Zone) Last week one of my servers ran out of RAM and Swap. Shame on me for not monitoring that, but it's now. As the server is running several zones, my first question was: Which zone is eating up my RAM? So, here are the commands I used. text/html 2013-02-04T22:17:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/z/relax/api/base/base-exec-user base-exec-user Executes a command as a given user. Command is executed using ssh if the user is not on localhost. Usage base-exec-user USER COMMAND * USER: A key of an user definition in the repository. From this, the following properties are used: text/html 2015-01-29T09:15:22+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/cryptography/openssl/print_key Print Information about a Key openssl x509 -inform DER -in testkey.cer -noout -text Informations about the used arguments from the OpenSSL man page: * x509: Certificate display and signing utility. * -inform DER: This specifies the input format normally the command will expect an X509 certificate but this can change if other options such as -req are present. The DER format is the DER encoding of the certificate and PEM is the base64 encoding of the DER encoding with header and footer lines … text/html 2013-02-04T22:17:32+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/z/relax/api/base/base-ssh-login base-ssh-login Logs into a remote host using ssh. This can be used to open a remote sesssion, but ususally it's used by other methods (especially base-exec-user) to remotely execute a command. Usage base-ssh-login SERVICE [ COMMAND ] * SERVICE: a key of an user or host definition in the repository. From this, the following properties are used: text/html 2013-02-04T22:17:32+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/z/relax/api/base/base-ssh-umount base-ssh-umount Unmounts a remote share which had been mounted using sshfs/fuse (sftp). Usage base-ssh-mount SERVICE * SERVICE: A key of a service definition in the repository. Returns No output. text/html 2013-02-04T22:17:33+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/z/relax/api/host/host-user-tab host-user-tab Lists the users on a given host as a colon separated table. Usage host-user-tab HOST * HOST: a key of a host service definition in the repository. Returns Returns the contents of the /etc/passwd file. text/html 2013-02-04T22:17:32+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/z/relax/api/base/base-repo-get-service base-repo-get-service Loads a service configuration from the repository and outputs it to STDOUT. Usage base-repo-get-service SERVICE * SERVICE: a key of a service definition in the repository. Returns Returns the service definition. This is usually evaluated in a shell script by the text/html 2015-11-30T12:09:18+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/sysadmin/ssh SSH SSH with Public Key Authentication only /etc/ssh/sshd_config Make sure that your SSH config file (sshd_config) contains these settings: PubkeyAuthentication yes PasswordAuthentication no If you changed the config, make sure to restart sshd to activate ist: text/html 2013-02-04T22:17:32+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/z/relax/api/base/base-ssh-mount base-ssh-mount Mounts a remote share using sshfs/fuse (sftp). Usage base-ssh-mount SERVICE * SERVICE: A key of a service definition in the repository. Returns No output. text/html 2015-12-09T07:36:40+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/cryptography/openssl/print_certificate Print Information about a Certificate openssl x509 -in testkey.crt -noout -text Informations about the used arguments from the OpenSSL man page: * x509: Certificate display and signing utility. * -in testkey.crt: This specifies the input filename to read a certificate from or standard input if this option is not specified. text/html 2013-02-04T22:17:33+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/z/relax/api/host/host-user-list host-user-list Lists the users on a given host. Usage host-user-tab HOST * HOST: a key of a host service definition in the repository. Returns Returns the first colum (login) of the /etc/passwd file. Example users=$(host-user-list "${host}" \ | egrep -v "${IGNORED_USERS}" ) text/html 2013-02-04T22:17:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/z/relax/api/base/base-exec-superuser base-exec-superuser Executes a command as a given user. Command is executed using ssh if the user is not on localhost. Before executing the command, the privileges will be elevated. This privilege elevation method is defined by $RIGHT_ELEVATION in the service configuration and can be either