Differences

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--- doc:appunti:linux:sa:etc_network_interfaces [2012/06/06 10:06] – [/etc/network/interfaces] niccolo
+++ doc:appunti:linux:sa:etc_network_interfaces [2019/01/20 20:27] – [WiFi interfaces with WPA] niccolo
@@ Line 1: / Line 1: @@
 ====== /etc/network/interfaces ======
-The manpage for this Debian configuration file is **''man 5 interfaces''**, see also **''man wireless''** and **''/usr/share/doc/wireless-tools/README.Debian''**. For ''resolvconf'' options (''dns-nameservers'', etc.) see also **''man resolvconf''**.
+The reference documents for this Debian configuration file are:
+  * **''man 5 interfaces''**
+  * **''man wireless''**
+  * **''man resolvconf''** for ''resolvconf'' options (''dns-nameservers'', etc.)
+  * **''/usr/share/doc/wireless-tools/README.Debian''**
+  * **''/usr/share/doc/wpasupplicant/README.Debian.gz''** for wpa- options
 ===== Examples =====
@@ Line 9: / Line 14: @@
 See this two pages: [[http://wiki.debian.org/WPA#wpa_supplicant_in_Debian_6.0_.28Squeeze.29|wpa_supplicant in Debian 6.0]] and [[http://wiki.debian.org/WiFi/HowToUse#wpasupplicant|How To Use wpasupplicant]].
-With this configuration the WiFi connection will be not managed by NetworkManager:
+**Automatic IP address and WPA security** (credential can be in the same file, or in ''wpa_supplicant.conf'':
+<file>
+allow-hotplug wlan0
+iface wlan0 inet dhcp
+    #wpa-ssid MyESSID
+    #wpa-psk MyWPASecret
+    wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
+</file>
+**Static IP address with WPA security**; with this configuration the WiFi connection will be not managed by NetworkManager:
 <file>
@@ Line 18: / Line 33: @@
         gateway 10.0.0.189
         dns-nameservers 62.48.51.6 151.99.125.2
-        wpa-ssid MyESSID
+        #wpa-ssid MyESSID
-        wpa-psk MyWPASecret
+        #wpa-psk MyWPASecret
+        wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
 </file>
-==== WiFi interfaces without encryption ====
+**Static IP address, without encryption**:
 <file>
@@ Line 35: / Line 51: @@
         wireless-key off
 </file>
+==== Static address, not managed by NetworkManager ====
+Debian (9 Stretch) installs the **network-manager** package, which handles the configuration of Ethernet interface automatically, via DHCP. If you want to manually configure the interface, just put this in **/etc/network/interfaces** configuration file:
+<file>
+allow-hotplug enp2s0
+iface enp2s0 inet static
+        address 10.0.1.2
+        netmask 255.255.255.0
+        gateway 10.0.1.252
+        dns-nameservers 144.76.67.15 8.8.8.8
+</file>
+You need the **resolvconf** package to make the //dns-nameservers// option working. That option adds the **nameserver** line into the **/etc/resolv.conf** file at boot time.