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ubuntu 18.04安装php7.2 leveldb

发布时间:January 7, 2019 // 分类: // No Comments

安装:

apt install php7.2-dev libleveldb-dev
git clone https://github.com/reeze/php-leveldb.git
cd php-leveldb/
phpize
./configure 
#arm64
#./configure --with-leveldb=/usr/lib/aarch64-linux-gnu/ 
make && make install
echo 'extension=leveldb.so' > /etc/php/7.2/cli/conf.d/40-leveldb.ini

查看是否加载:

php -m|grep leveldb

unbound过滤ipv6域名查询

发布时间:January 6, 2019 // 分类: // No Comments

将所有的ipv6地址设置为private-address,这样unbound转发域名有ipv6结果时不返回给查询的客户端。
如果对单独的域名进行过滤新建一个server实例,然后forward-zone转发特定域名到过滤ipv6的端口。

server:
 port: 5350
 do-ip4: yes
 do-ip6: no 
 private-address: ::/0
 interface: 0.0.0.0
 access-control: 127.0.0.0/8 allow
 access-control: 192.168.0.0/16 allow
 msg-cache-size: 4m
 rrset-cache-size: 4m
 cache-max-ttl: 3600
 cache-min-ttl: 300
 hide-identity: yes
 hide-version: yes
 prefetch: yes
 num-threads: 4
 do-not-query-localhost: no
#minimal-responses: yes
#qname-minimisation: yes
#tcp-upstream: yes
#verbosity: 1
#logfile: "/var/log/unbound.log"

forward-zone:
  name: "."
  forward-addr: 114.114.114.114

prefetch当查询时且缓存离过期时间还有10%时预请求并更新dns缓存,如果期间无查询请求不更新。
参考:
https://lost-and-found-narihiro.blogspot.com/2011/10/unbound-prefetch.html
https://nlnetlabs.nl/pipermail/unbound-users/2018-January/010444.html
https://calomel.org/unbound_dns.html
https://nlnetlabs.nl/documentation/unbound/unbound.conf/
https://www.nlnetlabs.nl/svn/unbound/trunk/doc/example.conf.in

windows10设置ipv4优先于ipv6

发布时间:January 5, 2019 // 分类: // No Comments

类似于linux下设置ipv4优先,将::ffff:0:0/96的优先级调高即可。
查看优先级顺序:

netsh interface ipv6 show prefixpolicies

2019-01-05_082456.jpg
修改优先级:

netsh interface ipv6 set prefixpolicy ::ffff:0:0/96 100 4

查看修改后的优先级:
2019-01-05_082543.jpg

更新:此方法有问题,重启电脑后ipv6优先级不正常,暂不使用。
参考:
http://blog.ilc.edu.tw/blog/index.php?op=printView&articleId=622435&blogId=25793

transmission rpc api php

发布时间:December 29, 2018 // 分类:PT // No Comments

<?php
class transmission {
  public $url;
  public $user;
  public $pass;
  public $session_id = '';
  public $header = array(
    //'User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:62.0) Gecko/20100101 Firefox/62.0',
    'Connection: keep-alive'
  );

  public function __construct($url, $user, $pass) {
    $this->url = $url;
    $this->user = $user;
    $this->pass = $pass;
    $this->request();
  }

  function request($post = "") {
    //echo $url.PHP_EOL;
    $url = $this->url;
    $curl = curl_init();
    curl_setopt($curl, CURLOPT_URL, $url);
    curl_setopt($curl, CURLOPT_HEADER, 1);
    curl_setopt($curl, CURLOPT_TIMEOUT, 10);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1);
    curl_setopt($curl, CURLOPT_MAXREDIRS, 5);
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, 0);
    $header = $this->header;
    if ($this->session_id) {
      $header[] = 'X-Transmission-Session-Id: '.$this->session_id;
    }
    $header[] = "Authorization: Basic ".base64_encode($this->user.':'.$this->pass);
    curl_setopt($curl, CURLOPT_HTTPHEADER, $header);
    if ($post) {
      echo $post.PHP_EOL;
      curl_setopt($curl, CURLOPT_POST, 1);
      curl_setopt($curl, CURLOPT_POSTFIELDS, $post);
    }
    $data = curl_exec($curl);
    $code = curl_getinfo($curl)["http_code"];
    $header_size = curl_getinfo($curl, CURLINFO_HEADER_SIZE);
    //var_dump(curl_getinfo($curl));
    curl_close($curl);
    $header = substr($data, 0, $header_size);
    $body = substr($data, $header_size);
    //var_dump($header);
    //var_dump($body);
    if ($code == 409 && preg_match('/<code>X-Transmission-Session-Id: (.*?)<\/code>/', $data, $mh)) {
      $this->session_id = $mh[1];
    } elseif ($code == 401) {
      die("Authorization error".PHP_EOL);
    } elseif ($code == 200) {
      return json_decode($body, 1);
    }
  }

  function build_request($method, $arguments) {
    $post_data = json_encode(array('method' => $method, 'arguments' => $arguments));
    return $this->request($post_data);
  }

  public function get($ids = null, $fields = null) {
    $fields = $fields ? $fields : array( "id", "name", "status", "doneDate", "haveValid", "totalSize", "trackers", "uploadLimited", "uploadLimit");
    $arguments = $ids ? array("fields" => $fields, "ids" => $ids) : array("fields" => $fields);
    return $this->build_request( "torrent-get", $arguments );
  }

  public function reannounce($ids = null) {
    $arguments = $ids ? array("ids" => $ids) : array();
    return $this->build_request( "torrent-reannounce", $arguments);
  }
}

/*
$rpc = new transmission("http://192.168.168.6:9091/transmission/rpc", "admin", "pass");
$data = $rpc->get(array(1), array('id'));
//$data = $rpc->get();
$data = $rpc->reannounce();
var_dump($data);
 */

更多参数:
https://github.com/transmission/transmission/blob/master/extras/rpc-spec.txt

使用you-get下载youtube高清视频

发布时间:December 27, 2018 // 分类: // No Comments

centos7下安装you-get:

yum install python34-pip
pip3 install you-get

安装ffmpeg,youtube下载的1080p视频和音频是分享的,使用ffmpeg将音频和视频合并。

rpm --import http://li.nux.ro/download/nux/RPM-GPG-KEY-nux.ro
rpm -Uvh http://li.nux.ro/download/nux/dextop/el7/x86_64/nux-dextop-release-0-5.el7.nux.noarch.rpm
yum install ffmpeg ffmpeg-devel -y

查看链接有哪些格式的视频可以下载:

you-get -i https://www.youtube.com/watch?v=NGoOpniJwnM

如要下载1080p mp4格式的:

you-get --itag=137 https://www.youtube.com/watch?v=NGoOpniJwnM
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