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--- informatica:certificaciones:lpic:lpic-2:212_system_security [2021/04/20 16:54] – [Recomendaciones] tempwin
+++ informatica:certificaciones:lpic:lpic-2:212_system_security [2021/04/20 17:07] (actual) – [Recomendaciones] tempwin
@@ Línea 115: / Línea 115: @@
 Los modos **point-to-point** y **site-to-site** utilizan los dispositivos ''tun''. ''tap'' se utiliza en **bridge**.
+**Which of the following address ranges are PRIVATE address ranges? (Choose all that apply.)
+Choose the 3 correct answers:**
+  * 172.16.0.0 to 172.31.255.255 (**Solución**)
+  * 192.168.0.0 through 192.168.255.255 (**Solución**)
+  * None of the above
+  * 10.0.0.0 to 10.255.255.255 (**Solución**)
+**Which of the following files is the primary configuration file for the VSFTPD service?**
+  * ''/etc/vsftpd.conf''
+  * ''/etc/ftp/ftp.conf''
+  * ''/etc/service/vsftpd.conf''
+  * ''/etc/vsftpd/vsftpd.conf''  (**Solución**)
+**Which of the following kernel settings, when added to the file /etc/sysctl.conf, will enable a Linux system to function as a router (forwarding IP packets)?**
+  * ''net.tcp.all.forwarding 1''
+  * ''net.tcp.forward 1''
+  * ''ipv4.forward 1''
+  * ''net.ipv4.ip_forward 1'' (**Solución**, aunque debería tener un signo igual para asignar el valor)
+**The 'scp' and 'sftp' services are encrypted in the same manner as SSH and can utilize the same public/private keys for user authentication.**
+  * Verdadero (**Solución**)
+  * Falso
+**The 'ssh-keygen' utility is used to generate public and private keys that can be exchanged with remote systems to authenticate the user that generated them during SSH connections.**
+  * Verdadero (**Solución**)
+  * Falso