XenServer增加硬盘为SR卷或扩充到VG
发布时间:July 2, 2012 // 分类:虚拟化 // No Comments
1.以SR方式增加硬盘:
查看新增加的硬盘分区:
#https://www.haiyun.me
fdisk -l
Disk /dev/sda: 42.9 GB, 42949672960 bytes
255 heads, 63 sectors/track, 5221 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 523 4194304 83 Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2 523 1045 4194304 83 Linux
/dev/sda3 1045 5221 33549043 8e Linux LVM
Disk /dev/sdb: 1073 MB, 1073741824 bytes
255 heads, 63 sectors/track, 130 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/sdb doesn't contain a valid partition table
新建为SR:
xe sr-create type=lvm content-type=user device-config:device=/dev/sdb name-label=sr2
5a953701-83ab-b22b-3903-c3932d3a710d
2.新加硬盘以LVM方式扩容到VG:
新建PV:
pvcreate /dev/sdb
查看VG名称:
vgscan
扩充PV到VG:
vgextend VG_XenStorage-5a953701-83ab-b22b-3903-c3932d3a710d /dev/sdb
Windows下Firefox插件Vimperator调用gvim编辑器
发布时间:July 2, 2012 // 分类:Vim // No Comments
Winodws XP及其它32位:
set editor='C:\\Program\ Files\\Vim\\vim73\\gvim.exe -f'
Windows 7 64位:
set editor='C:\\Program\ Files\ (x86)\\Vim\\vim73\\gvim.exe -f'
用Curl+i调用,可将设置写入Vimperator配置文件,Firefox启动时自动载入。
AutoHotKey修改默认编辑器为Gvim
发布时间:July 1, 2012 // 分类:AutoHotKey // No Comments
AutoHotKey默认编辑器为记事本,可以修改为其它编辑器,如gvim:
开始——运行:
regedit
找到以下:
HKEY_CLASSES_ROOT\AutoHotkeyScript\Shell\Edit\Command
修改值为:
C:\Program Files (x86)\Vim\vim73\gvim.exe %1
Nginx模块GeoIP匹配处理IP所在国家、城市
发布时间:July 1, 2012 // 分类:Nginx // 5 Comments
Nginx可配合GeoIP模块定位IP所在物理位置并做相应处理,支持多个条件匹配:
$geoip_country_code #国家代码2位,如CN
$geoip_country_code3 #国家代码3位,如CHN
$geoip_country_name #国家完整名称,如China
$geoip_region #所在地区
$geoip_city #所在城市,如BeiJing
$geoip_postal_code #邮政编码
$geoip_city_continent_code #所在洲,如AS
$geoip_latitude #纬度
$geoip_longitude #经度
yum install geoip-devel #安装GeoIP解析库
wget http://nginx.org/download/nginx-1.0.15.tar.gz
tar zxvf nginx-1.0.15.tar.gz
cd nginx-1.0.15
./configure --user=www --group=www --prefix=/usr/local/nginx --with-http_stub_status_module \
--with-http_ssl_module --with-http_gzip_static_module --with-ipv6 --with-http_geoip_module
make
make install
下载GeoIP城市国家数据库:
mkdir -p /usr/local/nginx/geoip
cd /usr/local/nginx/geoip
wget http://www.maxmind.com/download/geoip/database/GeoLiteCountry/GeoIP.dat.gz
wget http://geolite.maxmind.com/download/geoip/database/GeoLiteCity.dat.gz
gunzip GeoIP.dat.gz
gunzip GeoLiteCity.dat.gz
编辑Nginx配置文件加载GeoIP数据库:
http
[...]
geoip_country /usr/local/nginx/geoip/GeoIP.dat; #国家数据库
geoip_city /usr/local/nginx/geoip/GeoLiteCity.dat; #城市数据库
[...]
如需Nginx传递变量给PHP,编辑fastcgi_params添加:
fastcgi_param GEOIP_CITY_COUNTRY_CODE $geoip_city_country_code;
fastcgi_param GEOIP_CITY_COUNTRY_CODE3 $geoip_city_country_code3;
fastcgi_param GEOIP_CITY_COUNTRY_NAME $geoip_city_country_name;
fastcgi_param GEOIP_REGION $geoip_region;
fastcgi_param GEOIP_CITY $geoip_city;
fastcgi_param GEOIP_POSTAL_CODE $geoip_postal_code;
fastcgi_param GEOIP_CITY_CONTINENT_CODE $geoip_city_continent_code;
fastcgi_param GEOIP_LATITUDE $geoip_latitude;
fastcgi_param GEOIP_LONGITUDE $geoip_longitude;
应用示例,Nginx判断如果访问者IP所在国家为美国或中国,返回404错误
map $geoip_country_code $allowed_country {
default yes;
CN no;
}
server
[...]
if ($geoip_country_code ~* (US|CN)) {
return 404;
}
if ($allowed_country = no) {
return 404;
}
[...]
新建PHP程序测试GeoIP:
<html>
<head>
<title>IP地址检测,我的IP地址是多少?</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
</head>
<body>
<?php
if (getenv(HTTP_X_FORWARDED_FOR)) {
$pipaddress = getenv(HTTP_X_FORWARDED_FOR);
$ipaddress = getenv(REMOTE_ADDR);
echo "<br>您的代理IP地址是: ".$pipaddress. " (via $ipaddress) " ;
} else {
$ipaddress = getenv(REMOTE_ADDR);
echo "<br>您的IP地址是 : $ipaddress";
}
$geoip_city_country_code = getenv(GEOIP_CITY_COUNTRY_CODE);
$geoip_city_country_code3 = getenv(GEOIP_CITY_COUNTRY_CODE3);
$geoip_city_country_name = getenv(GEOIP_CITY_COUNTRY_NAME);
$geoip_region = getenv(GEOIP_REGION);
$geoip_city = getenv(GEOIP_CITY);
$geoip_postal_code = getenv(GEOIP_POSTAL_CODE);
$geoip_city_continent_code = getenv(GEOIP_CITY_CONTINENT_CODE);
$geoip_latitude = getenv(GEOIP_LATITUDE);
$geoip_longitude = getenv(GEOIP_LONGITUDE);
echo "<br>国家 : $geoip_city_country_name ( $geoip_city_country_code3 , $geoip_city_country_code ) ";
echo "<br>地区 : $geoip_region";
echo "<br>城市 : $geoip_city ";
echo "<br>邮政编码 : $geoip_postal_code";
echo "<br>所在洲 : $geoip_city_continent_code";
echo "<br>纬度 : $geoip_latitude ";
echo "<br>经度 : $geoip_longitude ";
?>
</body>
</html>
debian下:
apt install libnginx-mod-http-geoip geoip-database
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