tangnotes

# parse X509 Certificate
openssl x509 -in fwso_cn.crt -noout -text

# extract pubkey from X509 certificate
openssl x509 -in fwso_cn.crt -noout -pubkey

# extract pubkey from RSA private key
openssl rsa -in ~/.ssh/id_rsa -pubout -out id_rsa.pub

# sign data with private key

tangnotes

INFO  [CompactionExecutor:3] 2016-07-06 10:02:38,636 CompactionTask.java:141 - Compacting [SSTableReader(path='/data0/cassandra/data/system/schema_columnfamilies-45f5b36024bc3f83a3631034ea4fa697/system-schema_columnfamilies-ka-32-Data.db'), SSTableReader(path='/data0/cassandra/data/system/schema_columnfamilies-45f5b36024bc3f83a3631034ea4fa697/system-schema_columnfamilies-ka-31-Data.db'), SSTableReader(path='/data0/cassandra/data/system/schema_columnfamilies-45f5b36024bc3f83a3631034ea4fa697/system-schema_columnfamilies-ka-29-Data.db'), SSTableReader(path='/data0/cassandra/data/system/schema_columnfamilies-45f5b36024bc3f83a3631034ea4fa697/system-schema_columnfamilies-ka-30-Data.db')]
INFO  [CompactionExecutor:5] 2016-07-06 10:02:38,637 CompactionTask.java:141 - Compacting [SSTableReader(path='/data0/cassandra/data/system/schema_columns-296e9c049bec3085827dc17d3df2122a/system-schema_columns-ka-31-Data.db'), SSTableReader(path='/data0/cassandra/data/system/schema_columns-296e9c049bec3085827dc17d3df2122a/system-sc

tangnotes

GOX=src/golang.org/x
mkdir -p $GOX
cd $GOX
git clone https://github.com/golang/tools.git
git clone https://github.com/golang/net.git
git clone https://github.com/golang/oauth2.git
git clone https://github.com/golang/sys.git
git clone https://github.com/golang/crypto.git
git clone https://github.com/golang/image.git
git clone https://github.com/golang/text.git

tangnotes

import java.util.Date;
import java.util.Locale;
import java.util.Calendar;
import java.util.TimeZone;
import java.text.DateFormat;
import java.text.SimpleDateFormat;

public class DateTime {
    public static void main(String[] args) {
        String ts = "1468857599";

tangnotes

#!/bin/bash

function _echo() {
  echo "`date +'%F %T'` - $1"
}

if [ $# -lt 1 ]
then
    echo "Usage: $0 YYYY-MM-DD [HH]"
    exit 1

tangnotes

// reference: https://tools.ietf.org/html/rfc5321
package main

import (
	"bufio"
	"encoding/base64"
	"fmt"
	"log"
	"net"
	"os"

tangnotes

//https://play.golang.org/p/d2ILCDInTy

package main

import (
	"bytes"
	"fmt"
	"io"
)

tangnotes

./configure --prefix=/usr/local --mandir=/usr/local/Cellar/vim/8.0.0543/share/man --enable-multibyte --with-tlib=ncurses --enable-cscope --with-compiledby --with-lua-prefix=/usr/local/Cellar/lua/5.2.4_4 --enable-luainterp=yes

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certbot certonly --webroot -w /usr/local/nginx/html -d example.com
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Starting new HTTPS connection (1): acme-v01.api.letsencrypt.org
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for notes.fwso.cn
Using the webroot path /usr/local/nginx/html for all unmatched domains.
Waiting for verification...
Cleaning up challenges
Generating key (2048 bits): /etc/letsencrypt/keys/0000_key-certbot.pem

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Title (H1)

Title (H2)

List

• option 1
• option 2