Databases
Links
how to recover mysql data from innodb
Configuration
/etc/mysql/my.cnf
bind-address 127.0.0.1 #skip-networking
/etc/my.conf.d/server.cnf
max_connections = 30 thread_cache_size = 1
key_buffer = 8M query_cache_size = 8M query_cache_limit = 512K thread_stack = 128K
http://opensourcehacker.com/2011/03/31/reducing-mysql-memory-usage-on-ubuntu-debian-linux/
Connecting
mysql -p mysql -h localhost -u username -ppasswd mysql
Database Information
STATUS SHOW DATABASES; USE mysql; SELECT database();
Table Information
USE mysql; SHOW TABLES; DESC user; SELECT user,host,password FROM user; SELECT user(), version(), current_date;
Create Database and Table
CREATE DATABASE test USE test CREATE TABLE pet (name VARCHAR(20), owner VARCHAR(20), species VARCHAR(20), sex CHAR(1), birth DATE, death DATE); DESCRIBE pet; INSERT INTO pet VALUES ('Puffball','Diane','hamster','f','1999-03-30',NULL); INSERT INTO pet VALUES ('Chico','Owner','cat','m','1995-08-02',NULL); SELECT * FROM pet; SELECT name,owner FROM pet WHERE sex = 'm'; DELETE FROM pet WHERE sex = 'm'; DROP table pet; DROP database test;
USE joomla UPDATE jos_content SET introtext='bold' WHERE id = 5; QUIT
LOAD DATA LOCAL INFILE '/root/project/bewerkt.txt' INTO TABLE Testtabel2 FIELDS TERMINATED BY ',' LINES TERMINATED BY ';' (Dag,Maand,Tijd,Send,Received,Srcip,Dstip,Srcport,Dstport);
Users
CREATE DATABASE ninan; CREATE USER 'ninan'@'localhost' IDENTIFIED BY 'ninan'; GRANT ALL PRIVILEGES ON ninan.* TO 'ninan'@'localhost' WITH GRANT OPTION;
CREATE USER 'logstash'@'localhost' IDENTIFIED BY 'truelyrandom'; GRANT SELECT ON phpipam.* TO 'logstash'@'localhost';
USE mysql SELECT host,user,password FROM user; UPDATE user SET host = 'server.islief.com' WHERE host = 'rataplan.islief.com'; GRANT ALL PRIVILEGES ON *.* TO 'jan'@'localhost' IDENTIFIED BY 'password' WITH GRANT OPTION; GRANT ALL PRIVILEGES ON *.* TO 'jan'@'%' IDENTIFIED BY 'password' WITH GRANT OPTION; GRANT ALL PRIVILEGES ON joomla.* TO joomla_admin@localhost IDENTIFIED BY 'joomla'; GRANT RELOAD,PROCESS ON *.* TO 'admin'@'localhost'; GRANT USAGE ON *.* TO 'dummy'@'localhost'; FLUSH PRIVILEGES;
DB Replication
http://dev.mysql.com/doc/refman/4.1/en/replication-howto.html
grant replication slave on *.* to 'replication'@x.islief.com identified by 'rataplan';
CHANGE MASTER TO MASTER_HOST='islief.com', MASTER_USER='replication', MASTER_PASSWORD='rataplan', MASTER_PORT=3306, MASTER_LOG_FILE='mysql-bin.log', MASTER_LOG_POS=4, MASTER_CONNECT_RETRY=10;
Replace substring
UPDATE volumes SET provider_location = REPLACE(provider_location, '10.0.0.123', '10.0.0.120');
Joomla
mysqladmin -u root -p create Joomla mysql -u root -p GRANT ALL PRIVILEGES ON joomla.* TO joomla_admin@localhost IDENTIFIED BY 'joomla'; FLUSH PRIVILEGES; QUIT
Financials
For personal use I collect a couple of financial figures and put them in a database and create figures from this. I allows me to understand where I'm loosing money and why I'm not rich yet (millionair by christmas) =)
Scripts are run from cron.
20 23 * * 1-5 /usr/bin/ing.sh > /dev/null 2>&1 30 23 * * 1-5 /usr/bin/euribor.sh > /dev/null 2>&1 40 23 * * 1-5 /usr/bin/ericb.sh 2> /dev/null 50 23 * * 1-5 /usr/bin/xrate.sh 2> /dev/null
Java
javac -cp . util/URI.java javac -cp . util/HTTPDownloader.java javac -cp jcommon-1.0.15.jar:jfreechart-1.0.12.jar:mysql-connector-java-5.1.7-bin.jar:poi-3.5-FINAL-20090928.jar:util:. FeedDatabase.java java -cp jcommon-1.0.15.jar:jfreechart-1.0.12.jar:mysql-connector-java-5.1.7-bin.jar:poi-3.5-FINAL-20090928.jar:util:. FeedDatabase javac -cp jcommon-1.0.15.jar:jfreechart-1.0.12.jar:mysql-connector-java-5.1.7-bin.jar:poi-3.5-FINAL-20090928.jar EuriGraph.java java -cp jcommon-1.0.15.jar:jfreechart-1.0.12.jar:mysql-connector-java-5.1.7-bin.jar:poi-3.5-FINAL-20090928.jar:. EuriGraph javac -cp jcommon-1.0.15.jar:jfreechart-1.0.12.jar:mysql-connector-java-5.1.7-bin.jar:poi-3.5-FINAL-20090928.jar EricGraph.java java -cp jcommon-1.0.15.jar:jfreechart-1.0.12.jar:mysql-connector-java-5.1.7-bin.jar:poi-3.5-FINAL-20090928.jar:. EricGraph
Euribor
select max(date) from euribor; select date,3m,12m from euribor order by date desc limit 1; select date,3m,12m from euribor where date =(select max(date) from euribor);
USE mysql; GRANT SELECT ON euribor.* TO euribor@'%' IDENTIFIED BY 'euribor'; GRANT SELECT ON euribor.* TO euribor@'localhost' IDENTIFIED BY 'euribor';
CREATE database euribor; USE euribor; CREATE TABLE euribor (date DATE key, 1W DECIMAL(4,3), 2W DECIMAL(4,3), 3W DECIMAL(4,3), 1M DECIMAL(4,3), 2M DECIMAL(4,3), 3M DECIMAL(4,3), 4M DECIMAL(4,3), 5M DECIMAL(4,3), 6M DECIMAL(4,3), 7M DECIMAL(4,3), 8M DECIMAL(4,3), 9M DECIMAL(4,3), 10M DECIMAL(4,3), 11M DECIMAL(4,3), 12M DECIMAL(4,3)); INSERT INTO euribor VALUES('2009-01-15','2.013','2.066','2.129','2.200','2.394','2.510','2.532','2.552','2.572','2.592','2.605','2.618','2.627','2.639','2.651'); SELECT date,3M,12M FROM euribor;
EricB
CREATE database ericb; USE ericb; CREATE TABLE ericb (date DATE key,price DECIMAL(5,2)); INSERT INTO ericb VALUES('2009-12-29',66.90); DELETE FROM ericb WHERE date='2009-12-29';
GRANT SELECT,INSERT ON ericb.ericb TO ericb@'localhost' IDENTIFIED BY 'ericb'; curl -s www.ericsson.com/thecompany/investors | grep -A 1 "ERIC-B" | tail -1 | sed 's/<[^>]*>//g' | mysql -uericb -pericb -Dericb -Be "INSERT INTO ericb VALUES('`date +%F`',`xargs`);"
mysql -uericb -pericb ericb -e "LOAD DATA INFILE '/tmp/table.cvs' INTO TABLE ericb FIELDS TERMINATED BY ',' (date,price)"
ING
CREATE DATABASE ing; USE ing; CREATE TABLE ing (date DATE, fund CHAR(31), price DECIMAL(7,5), PRIMARY KEY (date, fund)); USE mysql; GRANT SELECT,INSERT ON ing.* TO ing@'localhost' IDENTIFIED BY 'ing'; GRANT FILE ON *.* TO ing@'localhost' IDENTIFIED BY 'ing';
curl -s http://www.ing.nl/particulier/pensioenen/koersinformatie-beleggingsfondsen/index.aspx | grep -A 3 "Actuele koersen" | tail -1 | sed -e 's//\n/g' -e 's/,/./g' -e 's/<\/td>/,/g' -e 's/ /_/g' -e 's/<[^>]*>//g' | grep --color=never ING > /tmp/ing.txt
mysql -uing -ping -Ding -Be "LOAD DATA INFILE '/tmp/ing.txt' INTO TABLE ing FIELDS TERMINATED BY ',' (fund, price) SET date = CURRENT_DATE"; java -cp jcommon-1.0.15.jar:jfreechart-1.0.12.jar:mysql-connector-java-5.1.7-bin.jar:poi-3.5-FINAL-20090928.jar:util:. INGGraph
SDR
Special Drawing Right https://philihp.com/2008/how-to-get-an-xdr-exchange-rate-xml-feed-from-the-imf.html
USE mysql; GRANT SELECT,INSERT ON xrate.xrate TO xrate@'localhost' IDENTIFIED BY 'xrate';
(TODO, FIELDS MARKED AS N/A can be marked as empty!) CREATE TABLE xrate (date DATE KEY, eur DECIMAL(8,7), sek DECIMAL(8,7), gbp DECIMAL(8,7), usd DECIMAL(8,7));
LOAD DATA INFILE '/home/public/xdr-exchangerate.txt' INTO TABLE xrate FIELDS TERMINATED BY '\t' (date,eur,sek,gbp,usd)" LOAD DATA INFILE '/home/public/xdr-exchangerate.txt' INTO TABLE xrate FIELDS TERMINATED BY '\t' LINES TERMINATED BY '\n' (@date,eur,sek,gbp,usd) set date = str_to_date(@date,'%d-%M-%Y');
#!/bin/bash T="$(date +%s)" J=`expr $T + 62135596800` TIME="${J}0000000" URL="http://www.imf.org/external/np/fin/ert/GUI/Pages/Report.aspx?CU=%27EUR%27,%27SEK%27,%27GBP%27,%27USD%27&EX=SDRC&P=Last30Days&CF=Compressed&CUF=Period&DS=Ascending&DT=NA" curl -s -L -c /tmp/cookie.txt $URL > /dev/null curl -s -L -b /tmp/cookie.txt "http://www.imf.org/external/np/fin/ert/GUI/Pages/ReportData.aspx?Type=XML" -o /tmp/sdr.xml xsltproc /tmp/sdr.xsl /tmp/sdr.xml | grep INSERT | mysql -X -uxrate -pxrate -Dxdr
<?xml version="1.0" encoding="ISO-8859-1"?> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:template match="/"> <xsl:for-each select="EXCHANGE_RATE_REPORT/EFFECTIVE_DATE">INSERT IGNORE INTO xrate VALUES (STR_TO_DATE("<xsl:value-of select="@VALUE" />", '%d-%b-%Y')<xsl:for-each select="RATE_VALUE">,"<xsl:value-of select="."/>"</xsl:for-each>); </xsl:for-each> </xsl:template> </xsl:stylesheet>
<xsl:value-of select="@ISO_CHAR_CODE" />
move table to different database
RENAME TABLE xrate.xrate TO ericb.xrate;
Epguides
CREATE database epguides; USE epguides; CREATE TABLE epguides (num DECIMAL(3), productid char(14), date DATE, title char(64), season char(2), episode char(2), epititle char(255), PRIMARY KEY (title,season,episode));
USE mysql; GRANT SELECT,INSERT ON epguides.epguides TO epguides@'%' IDENTIFIED BY 'epguides';
SELECT * FROM epguides WHERE date > '2010-02-01' ORDER BY date; SELECT COUNT(date) FROM epguides; PreparedStatement ps = con.prepareStatement("INSERT INTO epguides VALUES(?, ?, ?, ?, ?, ?, ?)");
Restore
restoring an old database. (mounting the old datafiles and then dumping them into an sql file and then loading them to the new database
mysqld --innodb_log_file_size=5242880 --innodb_force_recovery=6 --datadir=/mnt/var/lib/mysql/ mysqldump -u root -p euribor > euribor.sql mysql -u root -p euribor < /home/jan/euribor.sql
resetdb
Execute commands without needing to login
service mysql stop mysqld_safe --init-file=/tmp/resetroot.sql service mysql start
Size
SELECT table_schema "Database", Round(Sum(data_length + index_length) / 1024 / 1024, 1) "DB Size in MB", engine FROM information_schema.tables GROUP BY table_schema;
Empty DB without dropping
creates drop commands for a database
SELECT concat('DROP TABLE IF EXISTS ', table_name, ';') FROM information_schema.tables WHERE table_schema = 'wiki';
Reinitialize DB
mysqld --initialize
Advanced
SHOW INNODB STATUS; show processlist;
PostgresSQL
\l \c kong \dt \d routes
sudo -u postgres createuser -DRS msf sudo -u postgres createdb -O msf msf sudo -u postgres psql msf ALTER ROLE msf WITH PASSWORD 'msf';
metasploit
db_nmap -v -sV google.com
select methods, paths from routes;
Casandra
cqlsh localhost SELECT cluster_name, listen_address FROM system.local; SELECT * FROM system_schema.keyspaces; DESCRIBE keyspaces; USE kong; DESCRIBE tables; DESCRIBE upstreams; SELECT * FROM schema_migrations; SELECT * FROM apis;
Mongo
use phpipam db.subnets.save( {description:"microsoft", subnet:"42.112.0.0", mask:"13"} ) db.subnets.find() db.subnets.remove( {"_id": ObjectId("5b224f4a01bcaae810e15eb5")});
Elasticsearch
curl -s -XGET 'http://localhost:9200/_cat/indices?v&pretty' curl 'http://localhost:9200/nsg-flow/ip/_search?pretty=true'