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How to find Unused Amazon EC2 Security groups
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Note: this only considers security use in EC2, not other services like RDS. You'll need to do more work to include security groups used outside EC2. The good thing is you can't easily (might not even be possible) to delete active security groups if you miss one associated w/anot...
How to avoid reverse engineering of an APK file?
...ad when decompiled, if not impossible.
Move the most critical parts of the service out of the app, and into a webservice, hidden behind a server side language like PHP. For example, if you have an algorithm that's taken you a million dollars to write. You obviously don't want people stealing it out ...
OpenID vs. OAuth [duplicate]
...estrict what information is flowing from authentication party(facebook) to service provider(stackoverflow). In OpenID we simply give a certificate symbolizing the person as legal and give access to whole database. Since stackoverflow or askubuntu belong to same domain they can exchange certificates ...
postgresql port confusion 5433 or 5432?
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/etc/services is only advisory, it's a listing of well-known ports. It doesn't mean that anything is actually running on that port or that the named service will run on that port.
In PostgreSQL's case it's typical to use port 543...
How to refresh app upon shaking the device?
... /* do this in onCreate */
mSensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
mSensorManager.registerListener(mSensorListener, mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER), SensorManager.SENSOR_DELAY_NORMAL);
mAccel = 0.00f;
mAccelCurrent = Sen...
Virtualbox “port forward” from Guest to Host [closed]
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If using NAT for the guest... If the service that is running on the host is bound to 127.0.0.1 only, then the guest cannot use the public ip of the host to connect to that service (example service: privoxy). Instead you need to use 10.0.2.2 as mentioned by Mark...
Maximum number of items that can be serialized or deserialized in an o...
...修改如下相应的WCF配置，即可解决。
服务器端：
<system.serviceModel>
<behaviors>
<serviceBehaviors>
<behavior name="ServiceBehavior">
<serviceMetadata httpGetEnabled="true"/>
<serviceDebug includeExceptionDetailInFaults="true"/>
...
Linux iptables防火墙开放mysql、apache的端口 - 操作系统(内核) - 清泛网 ...
...lmiwviZ ~] cat etc sysconfig iptables sample configuration for iptables service vi /etc/sysconfig/iptables 修改配置，添加两条tcp端口允许的记录：
[root@iZ23rlmiwviZ ~]# cat /etc/sysconfig/iptables
# sample configuration for iptables service
# you can edit this manually or u...
Maximum number of items that can be serialized or deserialized in an o...
...改如下相应的WCF配置，即可解决。
服务器端：
<system.serviceModel>
<behaviors>
<serviceBehaviors>
<behavior name="ServiceBehavior">
...
【解决】Win10/Win11家庭版不支持远程桌面？如何开启远程桌面？ - 操作系统...
...xakerhtc/rdpwrap.ini
5.替换rdpwrap.ini
5.1.先关闭Remote Desktop Services，步骤：
右击此电脑->管理->服务与应用程序->服务->选择Remote Desktop Services->停止。
5.2.将新的rdpwrap.ini文件，拷贝到rdpwrap的安装目录下：
C:\Program Files\RDP Wrappe...