bekce

I wanted to build an LDAP server that queries a MySQL server to fetch users and check their passwords. It is mainly used for old software that does not work with custom OAuth2 providers. Redmine is an example of this.

• ldapjs: library to start-off LDAP servers from scratch
• node.js driver for mysql: to connect to a mysql server

Instructions:

1. Create the database and table with insert.sql

bekce

This example connects to an imap server and retrieves emails

npm install imap mailparser

• imap
• mailparser

bekce

package utils;

import java.security.GeneralSecurityException;
import java.security.SecureRandom;
import java.security.cert.X509Certificate;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;

bekce

yum update
yum -y update
yum -y install openssh-clients openssh-servers nano
yum -y install openssh-clients openssh-server nano
ifconfig
chkconfig sshd on
service sshd start
shutdown -h now
ifconfig
wget -P /etc/yum.repos.d/ http://ftp.openvz.org/openvz.repo

bekce

If you happen to write to NTFS partitions using non-windows operating systems (such as with ntfs-3g, see this thread for more info), some of your files may have got written containing invalid characters in their names. When such a thing happen, the fix of chkdsk is just to delete them but clearly no one would ever want to have their files deleted to 'fix'!

This little script that I wrote aims to fix the invalid NTFS characters in batch and automatically by renaming the files with invalid characters to valid ones. It only fixes the characters in this set: <>:"\|?* which is pretty enough for most of the problems, but for advanced cases (like reserved names 'com', 'lpt') you must fix manually. Always double check the batch mv commands before running.

Fallacies:

• Does not fix reserved names in Windows (like CON, PRN, AUX, NUL, COM1, COM2, etc).
• Does not fix other illegal combination of characters like 'directory name cannot end with

bekce

import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.text.NumberFormat;
import java.util.Currency;
import java.util.Locale;

public class CustomDecimalFormat {
  
    public static DecimalFormat prepareFormat(char decimalSeparator, char thousandSeparator, boolean forceFraction, byte decimalPlaces){
        String pattern = "#,###.";

bekce

set -e

yum -y update

# Install Java
cd /opt/
wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" \
  "https://download.oracle.com/otn-pub/java/jdk/8u201-b09/42970487e3af4f5aa5bca3f542482c60/jdk-8u201-linux-x64.tar.gz"
tar xzf jdk-8u201-linux-x64.tar.gz
cd jdk1.8.0_201/

bekce

//Spark Similarity Join Algorithm
//Author: Selim Eren Bekçe
//Date: 2015-12-22

var lines = sc.textFile("tweets10K.tsv",8).map(s => s.split("\t"))
lines = lines.filter( t => t.length == 2 )
var pairs = lines.flatMap( s => {
  val rid = s(0) // record id
  val text = s(1) // text to be tokenized
  val tokens = text.split("[^\\p{L}\\p{Nd}/:]") // split on non-alphanumeric chars

bekce

import logging
import logging.handlers

logging.basicConfig(level=logging.INFO, format='%(asctime)s %(levelname)-10s %(message)s' )
smtp_handler = logging.handlers.SMTPHandler(mailhost=("localhost", 25),
                                            fromaddr="from@example.com", 
                                            toaddrs=["admin@example.com"],
                                            subject=u"stuff failed")
mail_logger = logging.getLogger("mail")
mail_logger.addHandler(smtp_handler)

bekce

import java.lang.management.ManagementFactory
import java.net.InetAddress
import org.apache.spark.rdd.RDD
import org.apache.spark.{Partitioner, SparkContext}
import scala.runtime.ScalaRunTime

/**
  * Note: Package as a jar and run with spark-submit against a running cluster.
  * Created by bekce on 6/5/17.
  */