https://old.andunix.net/ 2026-06-03T22:32:06+00:00 https://old.andunix.net/ https://old.andunix.net/_media/favicon.ico text/html 2013-03-01T20:58:12+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/solaris/localeadm localeadm The localeadm utility queries and configures Solaris locales through a command line interface. * man page: localeadm(1M) Preparation Check your Solaris Release with cat /etc/release and get a matching DVD or ISO image. If you're using an ISO image, you have to mount it (insert your path in the first line. 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 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 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 2013-02-04T22:17:36+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/solaris/dladm2dot Virtual Network Visualization OpenSolaris supports virtual networks using virtual interfaces connected with virtual switches. This feature was introduced with Project Crossbow in OpenSolaris 2009.06. To visualize the internal network(s), I created a perl script which takes the output of text/html 2017-01-04T09:33:36+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/sysadmin/tomcat_upload_limit Increase the Tomcat Upload Limit The “manager”-App of the Tomcats has a limit of 50MiB. This limit is defined in the file WEB-INF/web.xml within the “manager”-App: <multipart-config> <!-- 50MB max --> <max-file-size>52428800</max-file-size> <max-request-size>52428800</max-request-size> <file-size-threshold>0</file-size-threshold> </multipart-config> text/html 2013-02-04T22:17:34+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/script/dyndns_updates_without_client DynDNS Updates without a Client My new hosting provide Strato offers DynDNS. I was searching for a DynDNS client for my OpenSolaris Home Server, but a small bash script does the job as good as any other client. #! /bin/bash . ${HOME}/.dyndns.cfg DOMAINS=$(cat ${HOME}/.dyndns.domains) echo "$(date '+%Y-%m-%d %H:%M') $(basename $0)" for domain in ${DOMAINS}; do echo -n " ${domain} - " curl --silent --show-error --insecure --user ${LOGIN} "${UPDATE_URL}?hostname=${domain}" d… text/html 2013-02-04T22:17:36+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/solaris/exam_notes Notes for the Solaris 10 System Administration Exam (CX-310-200 & -202) I'm preparing myself for the two exams to achieve the Sun Certified System Administrator (SCSA) certification. This are my notes taken while studying the preparation books. Managing File Systems List Devices To list the system's devices, you can use the following commands: text/html 2013-02-04T22:17:37+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/solaris/pkg_repositories Package Repositories There's a list of multi-OS repositories at <http://wikis.sun.com/display/IpsBestPractices/Directory+of+Package+Repositories>. More on IPS, the Image Package System can be found at: * <http://www.opensolaris.org/os/project/pkg/>. * <http://wikis.sun.com/display/IpsBestPractices/> Repository Description <http://pkg.opensolaris.org/release/> OpenSolaris Distribution, Releases <http://pkg.opensolaris.org/dev/> OpenSolaris Distribution, Development Quality text/html 2014-11-25T10:40:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/java/jax-ws_debugging JAX-WS Debugging If you use the builtin JAX-WS implementation and want to see the SOAP requests and responses, you have to turn on the “dump” option in the transport pipe. The system property to set depends on your Java version. com.sun.xml.ws.transport.http.client.HttpTransportPipe.dump=true com.sun.xml.internal.ws.transport.http.client.HttpTransportPipe.dump=true com.sun.xml.ws.transport.http.HttpAdapter.dump=true com.sun.xml.internal.ws.transport.http.HttpAdapter.dump=true text/html 2013-02-04T22:17:35+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/script/tools Command Line Tools Used in My Scripts This is a list of comman dline tools which I use in my scripts an which should be installed on every of my systems. Basic tools (e.g. awk, find, grep, ps) which are always installed are not listed. Audio/Video text/html 2014-09-05T12:12:53+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/java/firefox_java-plugin Install the Java-Plugin for Firefox To install the Java plugin for Firefox, you have to create a symlink from Firefox's plugin directory /usr/lib/firefox-addons/plugins/ to the file libnpjp2.so in the JRE's “lib” dir. sudo ln -s \ ${JAVA_HOME}/jre/lib/amd64/libnpjp2.so \ /usr/lib/firefox-addons/plugins/libnpjp2.so text/html 2014-04-28T09:01:22+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/linux/debian/cleanup_packages Cleanup Packages Purge uninstalled Packages If a package is removed, it is only uninstalled, but the configuration remains on the system. This is a good thing, as you are able to reinstall the package and have it configured with the old configuration. But if you want to cleanup this old stuff, you can ge a list of uninstalled (but not purged) packages with this command: text/html 2013-03-01T20:38:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/oracle/resize_instance Oracle: Resize Instance In this example, the SGA will be resized to 6GB and the PGA to 2GB. First, change the SPFile: ALTER SYSTEM SET pga_aggregate_target = 2G SCOPE=SPFILE; ALTER SYSTEM SET sga_target = 6G SCOPE=SPFILE; Then, (optionally) export the SPFile to a PFile: text/html 2013-07-03T13:03:11+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/linux/debian/init init Managing init Scripts To activate an init script (“myscript”): update-rc.d myscript enable To deactivate an init script (“myscript”): update-rc.d myscript remove Further information can be found at Daemon - Debian Wiki sysadmin linux debian cli text/html 2013-02-04T22:17:35+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/script/root_login_with_bash root login with bash On our systems, the root account is set to be a role, so you can't login as root, just su to root from an user which has the root role. Also, the root user has the bourne shell (/bin/sh), but working with /bin/bash is much easier. Using this command, you can directly log in as text/html 2013-03-01T20:36:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/oracle/spfile_and_pfiles Oracle: SPFile and PFiles Oracle reads its parameters from a file called “SPFile”. You can't change it directly as it's a binary file. Additionally, Oracle can read the parameters from “PFiles”, which are regular text files. Create PFile To export the SPFiles to a PFile, just enter the following in SQLplus: text/html 2013-03-01T20:24:52+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/oracle/rman Oracle: Recovery Manager Start Recovery Manager rman target / Delete Archive Logs Delete all archive logs but keep the last 45 days: DELETE ARCHIVELOG ALL COMPLETED BEFORE 'SYSDATE -45'; To remove archive logs older than 3 days without prompting, e.g. via cron, after backup run: text/html 2017-04-13T20:11:34+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/sysadmin/list_open_ports List Open Ports To list the open ports together with the listening processes: netstat -tulpn Here is an example output: Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 695/sshd tcp6 0 0 :::22 :::* LISTEN 695/sshd udp 0 0 0.0.0.0:55872 … text/html 2013-02-04T22:17:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/cryptography/index Cryptography This guide tries to easily describe the terms used in cryptography. As all pages on this site, it's meant as a mnemonic for myself, but I'm happy if someone else finds it helpful too. cryptography index cryptography guide text/html 2013-09-02T20:37:01+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/prog/firefox/extensions Firefox Extensions Browsing Extensions Extension Description Adblock Plus A must-have. Blocks all these blinking ads which are so anoying. Greasemonkey Customize webpages using JavaScript. WOT, Web of Trust Information about the reputation of a page. Self-Destructing Cookies Removes cookies after closing the tab or navigating to another site.