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Cleanup Packages

Anonymous (anonymous@undisclosed.example.com) — 2014-04-28T09:01:22+00:00

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:

VBoxManage (The VirtualBox CLI)

Anonymous (anonymous@undisclosed.example.com) — 2014-02-22T13:16:38+00:00

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 []

Oracle: Recovery Manager

Anonymous (anonymous@undisclosed.example.com) — 2013-03-01T20:24:52+00:00

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:

Notes for the Solaris 10 System Administration Exam (CX-310-200 & -202)

Anonymous (anonymous@undisclosed.example.com) — 2013-02-04T22:17:36+00:00

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:

ISO 3166-1 alpha-2

Anonymous (anonymous@undisclosed.example.com) — 2013-02-04T22:17:21+00:00

ISO 3166-1 alpha-2 * urn:iso:std:iso:3166:-1:ed-2006:en#alpha-2 * standard iso country

root login with bash

Anonymous (anonymous@undisclosed.example.com) — 2013-02-04T22:17:35+00:00

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

localeadm

Anonymous (anonymous@undisclosed.example.com) — 2013-03-01T20:58:12+00:00

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.

Oracle: List Accounts with Objects

Anonymous (anonymous@undisclosed.example.com) — 2013-03-01T20:26:48+00:00

Oracle: List Accounts with Objects To list all accounts (users) the objects (like tables), you can query them with: SELECT DISTINCT OWNER FROM DBA_OBJECTS ORDER BY OWNER; If you want to list all accounts, you can query them with: SELECT USERNAME FROM ALL_USERS ORDER BY USERNAME;

MySQL: Create User

Anonymous (anonymous@undisclosed.example.com) — 2016-01-25T11:49:04+00:00

MySQL: Create User Create User CREATE USER '{user}'@'%' IDENTIFIED BY '{passwd}'; Create User and Database * Usually, {user} == {db} CREATE USER '{user}'@'%' IDENTIFIED BY '{passwd}'; GRANT USAGE ON * . * TO '{user}'@'%' IDENTIFIED BY '{passwd}' WITH MAX_QUERIES_PER_HOUR 0 MAX_CONNECTIONS_PER_HOUR 0 MAX_UPDATES_PER_HOUR 0 MAX_USER_CONNECTIONS 0 ; CREATE DATABASE IF NOT EXISTS `{db}`; GRANT ALL PRIVILEGES ON `{db}` . * TO '{user}'@'%';

Plaintext

Anonymous (anonymous@undisclosed.example.com) — 2013-02-04T22:17:20+00:00

Plaintext The plaintext is unencrypted and unsigned text. It's the payload which then get's signed and/or encrypted. Wikipedia defines plaintext as: " In cryptography, plaintext is information a sender wishes to transmit to a receiver. Cleartext is often used as a synonym. Before the computer era, plaintext most commonly meant message text in the language of the communicating parties. Plaintext has reference to the operation of cryptographic algorithms, usually encryption algorithms, and is …

Oracle: Resize Instance

Anonymous (anonymous@undisclosed.example.com) — 2013-03-01T20:38:48+00:00

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:

Shadows

Anonymous (anonymous@undisclosed.example.com) — 2013-07-11T06:39:41+00:00

Shadows Box Shadow Normal Shadow Only the shadow: box-shadow: 1px 4px 8px #888888; Looks even better with a tiny grey border: border: 1px solid #DDDDDD; box-shadow: 1px 4px 8px #888888; Inset Shadow The shadow inside the box: box-shadow: 1px 4px 8px #888888 inset;

jps - Java Virtual Machine Process Status Tool

Anonymous (anonymous@undisclosed.example.com) — 2013-02-19T14:05:55+00:00

jps - Java Virtual Machine Process Status Tool The Java Virtual Machine has a jps tool wich is a bit like the ps command. jps lists all java Processes of a user. You can find the man page at . I'm using it with the parameters -l (long listing) and -m

Print all certificates in a file

Anonymous (anonymous@undisclosed.example.com) — 2013-02-18T14:27:02+00:00

Print all certificates in a file This command is especially helpful if you want to use Tomcat-/Java-Keystore-Certificates with the Apache webserver. Use the -print_certs to print all the certificates and then cut the file and store each certificate in a single file.

Compare directories

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T12:34:39+00:00

Compare directories For each of the directories, generate a digest file: find DIR -type f -exec shasum {} + | LC_ALL=C sort -d -k 2 > shasums.txt It's important to use LC_ALL=C and the option -d of sort, to get compareable results on different machines.

Virtual Network Visualization

Anonymous (anonymous@undisclosed.example.com) — 2013-02-04T22:17:36+00:00

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

Print Information about a Certificate

Anonymous (anonymous@undisclosed.example.com) — 2015-12-09T07:36:40+00:00

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.

Print Information about a Key

Anonymous (anonymous@undisclosed.example.com) — 2015-01-29T09:15:22+00:00

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 …

Change Encoding with iconv

Anonymous (anonymous@undisclosed.example.com) — 2013-02-04T22:17:34+00:00

Change Encoding with iconv Convert Single File iconv -f iso-8859-1 -t utf-8 -o OUTPUT.txt INPUT.txt Converts INPUT.txt from iso-8859-1 to utf-8 and writes it to OUTPUT.txt. Convert All Files in a Directory for f in $(find . -type f) do iconv -f iso-8859-1 -t utf-8 -o ${f}_$$_TEMP ${f} \ && mv ${f}_$$_TEMP ${f} done

exiftool

Anonymous (anonymous@undisclosed.example.com) — 2016-09-26T19:25:34+00:00

exiftool Rename Photos Try it first with -testname: exiftool -d %Y-%m-%d_%H%M%S%%-c.%%e "-testname

Compare a Key with its Certificate

Anonymous (anonymous@undisclosed.example.com) — 2013-02-18T14:26:27+00:00

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

Command Line Tools Used in My Scripts

Anonymous (anonymous@undisclosed.example.com) — 2013-02-04T22:17:35+00:00

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

Firefox Extensions

Anonymous (anonymous@undisclosed.example.com) — 2013-09-02T20:37:01+00:00

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.

Oracle: SPFile and PFiles

Anonymous (anonymous@undisclosed.example.com) — 2013-03-01T20:36:05+00:00

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:

MacPorts

Anonymous (anonymous@undisclosed.example.com) — 2015-11-25T08:59:36+00:00

MacPorts List Ports list requested ports: port echo requested | cut -d ' ' -f 1 | uniq list installed ports: port -qv installed Housekeeping When ports are updated, the old port is only deactivated, not uninstalled: ... autoconf @2.69_2 autoconf @2.69_3 autoconf @2.69_5 ...

MySQL: Grant Permissions

Anonymous (anonymous@undisclosed.example.com) — 2013-02-04T22:17:26+00:00

MySQL: Grant Permissions Grant Permissions GRANT ALL PRIVILEGES ON `{db}` . * TO '{user}'@'%'; admin database mysql sql

Mercurial

Anonymous (anonymous@undisclosed.example.com) — 2013-07-15T10:39:59+00:00

Mercurial .hgignore Some handy .hgignore expressions: Ignore Mac Files Ignore .DS_Store and ._* files: (^|/)\._[^/]+$ (^|/)\.DS_Store$ NetBeans These expressions exclude the directories build, dist and nbproject/private. Depending on your project setup, you may want to also exclude

Oracle: EXP

Anonymous (anonymous@undisclosed.example.com) — 2013-03-01T20:40:57+00:00

Oracle: EXP Export all Objects from an Account Enter the account name insteand of {user}. exp USERID=\'/ as sysdba\' FILE={user}.dmp FULL=N OWNER={user} admin exp oracle

Generate a Test Key

Anonymous (anonymous@undisclosed.example.com) — 2014-11-20T08:13:01+00:00

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…

Android

Anonymous (anonymous@undisclosed.example.com) — 2013-02-04T22:17:18+00:00

Android android index Android Bookmarks android

MySQL: Revoke Permissions

Anonymous (anonymous@undisclosed.example.com) — 2013-02-04T22:17:26+00:00

MySQL: Revoke Permissions Revoke Permissions REVOKE ALL PRIVILEGES ON `{db}` . * FROM '{user}'@'%'; admin database mysql sql

MySQL: Backup

Anonymous (anonymous@undisclosed.example.com) — 2013-02-04T22:17:25+00:00

MySQL: Backup Export a Database # set or replace the variables $USER, $PASS and $DB mysqldump --add-drop-table -u${USER} -p${PASS} ${DB} Export all Databases individually # set or replace the variables $USER and $PASS DATE_YMD=$(date "+%Y-%m-%d") DATABASES=$(mysql --batch -u${USER} -p${PASS} mysql --execute='show databases') for db in ${DATABASES} do mysqldump --add-drop-table -u${USER} -p${PASS} ${DB} > ${DB}_${DATE_YMD}.sql & bzip2 ${DB}_${DATE_YMD}.sql & # sleep 10 # option…

Cryptography

Anonymous (anonymous@undisclosed.example.com) — 2013-02-04T22:17:21+00:00

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

Android Backup

Anonymous (anonymous@undisclosed.example.com) — 2013-04-24T12:11:00+00:00

Android Backup To backup your device, use this command. It will automatically insert the current date in the filename: adb backup -apk -shared -all -f $(date '+%Y-%m-%d').db If you are havong problems with the connection (“adb: unable to connect for backup

rmdir for OSX

Anonymous (anonymous@undisclosed.example.com) — 2015-11-25T09:43:44+00:00

rmdir for OSX The Finder on OSX creates .DS_Store files in the directories to store its settings. This makes removing directories from the command line quite complicated: $ rmdir test rmdir: test: Directory not empty $ rm test/.DS_Store $ /bin/rmdir test

DynDNS Updates without a Client

Anonymous (anonymous@undisclosed.example.com) — 2013-02-04T22:17:34+00:00

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…

CSS - Cascading Stylesheets

Anonymous (anonymous@undisclosed.example.com) — 2013-07-11T06:43:48+00:00

CSS - Cascading Stylesheets Pages css index Links German CSS Reference Links: * SELFHTML - CSS Kurzreferenz: im DEV Netz de.selfhtml.org * CSS 4 you - CSS-Referenz: www.css4you.de More CSS Bookmarks: webdesign css

MySQL: Create Database

Anonymous (anonymous@undisclosed.example.com) — 2013-02-04T22:17:25+00:00

MySQL: Create Database Create Database CREATE DATABASE IF NOT EXISTS `{db}`; Create Database and Grant Rights to a User CREATE DATABASE IF NOT EXISTS `{db}`; GRANT ALL PRIVILEGES ON `{db}` . * TO '{user}'@'%'; admin database mysql sql

MySQL: Change Password

Anonymous (anonymous@undisclosed.example.com) — 2013-12-17T09:09:25+00:00

MySQL: Change Password * Replace {passwd} with the password of the user. * Replace {user} with the name of the user. GRANT USAGE ON *.* TO '{user}'@'%' IDENTIFIED BY '{passwd}'; FLUSH PRIVILEGES; Or you can alternatively use the following: UPDATE mysql.user SET Password=PASSWORD('{passwd}') WHERE User='{user}'; FLUSH PRIVILEGES;