구차니의 잡동사니 모음

레이아웃 디자이너에 현재 배치되어 있는 요소들을 간략히 볼 수 있는 Show Blueprint 기능이 추가되었습니다. 

 <?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.myapplication">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

 <resources>

    <string name="app_name">My Application</string>
</resources>

Names incorporating Firmware/BIOS provided index numbers for on-board devices (example: eno1)

Names incorporating Firmware/BIOS provided PCI Express hotplug slot index numbers (example: ens1)

Names incorporating physical/geographical location of the connector of the hardware (example: enp2s0)

Names incorporating the interfaces's MAC address (example: enx78e7d1ea46da)

Classic, unpredictable kernel-native ethX naming (example: eth0) 

Change the network device naming scheme from ethX to a physical location-based name for easy identification and use.

Systems, particularly servers, with multiple network ports, name the ports ethX in a non-deterministic order, and are therefore not useful for system administrators. 

ifconfig em1 down

ip link set em1 name eth0

ifconfig eth0 up