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--- informatica:linux:comandes [2014/10/06 07:54] – [Determinar si puerto de red cableado] javi
+++ informatica:linux:comandes [2020/03/18 12:39] – [Comandos relacionados con DNS] javi
@@ Line 1: / Line 1: @@
+====== sshfs ======
+mount ssh
+  apt-get install sshfs
+Montar para usuario normal
+  sshfs root@192.168.1.2:/media/2tb /mnt/2tb -o rw,noexec,nosuid,nodev,max_read=65536,allow_other
 ====== SFTP ======
@@ Line 50: / Line 57: @@
 #screen -S titulo
-Recuperar esa sesión:
+Recuperar sesión detachada por nombre :
+  screen -r titulo
+Si está atachada, al poner -R mayúscula crea una nueva con el mismo nombre:
   screen -R titulo
@@ Line 314: / Line 324: @@
 Listar interfaces:
-  ifconfig | grep "Link encap"
+  ifconfig -a | grep "Link encap"
 Ver si la boca esta cableada:
   ethtool p1p3 | grep "Link detected"
+====== Listar bibliotecas requeridas por un ejecutable ======
+<code>
+sudo objdump -x adb | grep NEEDED
+  NEEDED               librt.so.1
+  NEEDED               libdl.so.2
+  NEEDED               libpthread.so.0
+  NEEDED               libstdc++.so.6
+  NEEDED               libm.so.6
+  NEEDED               libgcc_s.so.1
+  NEEDED               libc.so.6
+</code>
+====== Listar bibliotecas compartidas requeridas ======
+<code>
+ ldd /usr/local/sbin/zabbix_server
+	linux-vdso.so.1 =>  (0x00007fffde3ff000)
+	libmysqlclient.so.18 => /usr/lib/x86_64-linux-gnu/libmysqlclient.so.18 (0x00007fa3c566c000)
+	libnetsnmp.so.15 => not found
+	libcurl.so.4 => /usr/lib/x86_64-linux-gnu/libcurl.so.4 (0x00007fa3c5404000)
+	libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fa3c50fe000)
+	libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fa3c4efa000)
+	librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007fa3c4cf1000)
+	libresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2 (0x00007fa3c4ad6000)
+	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fa3c4711000)
+	libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007fa3c44f7000)
+	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fa3c42d9000)
+	libidn.so.11 => /usr/lib/x86_64-linux-gnu/libidn.so.11 (0x00007fa3c40a6000)
+	librtmp.so.0 => /usr/lib/x86_64-linux-gnu/librtmp.so.0 (0x00007fa3c3e8b000)
+	libssl.so.1.0.0 => /lib/x86_64-linux-gnu/libssl.so.1.0.0 (0x00007fa3c3c2d000)
+	libcrypto.so.1.0.0 => /lib/x86_64-linux-gnu/libcrypto.so.1.0.0 (0x00007fa3c3853000)
+	libgssapi_krb5.so.2 => /usr/lib/x86_64-linux-gnu/libgssapi_krb5.so.2 (0x00007fa3c360c000)
+	liblber-2.4.so.2 => /usr/lib/x86_64-linux-gnu/liblber-2.4.so.2 (0x00007fa3c33fd000)
+	libldap_r-2.4.so.2 => /usr/lib/x86_64-linux-gnu/libldap_r-2.4.so.2 (0x00007fa3c31ac000)
+	/lib64/ld-linux-x86-64.so.2 (0x00007fa3c5bac000)
+	libgnutls.so.26 => /usr/lib/x86_64-linux-gnu/libgnutls.so.26 (0x00007fa3c2eed000)
+	libgcrypt.so.11 => /lib/x86_64-linux-gnu/libgcrypt.so.11 (0x00007fa3c2c6e000)
+	libkrb5.so.3 => /usr/lib/x86_64-linux-gnu/libkrb5.so.3 (0x00007fa3c29a2000)
+	libk5crypto.so.3 => /usr/lib/x86_64-linux-gnu/libk5crypto.so.3 (0x00007fa3c2773000)
+	libcom_err.so.2 => /lib/x86_64-linux-gnu/libcom_err.so.2 (0x00007fa3c256f000)
+	libkrb5support.so.0 => /usr/lib/x86_64-linux-gnu/libkrb5support.so.0 (0x00007fa3c2363000)
+	libsasl2.so.2 => /usr/lib/x86_64-linux-gnu/libsasl2.so.2 (0x00007fa3c2148000)
+	libgssapi.so.3 => /usr/lib/x86_64-linux-gnu/libgssapi.so.3 (0x00007fa3c1f0a000)
+	libtasn1.so.6 => /usr/lib/x86_64-linux-gnu/libtasn1.so.6 (0x00007fa3c1cf5000)
+	libp11-kit.so.0 => /usr/lib/x86_64-linux-gnu/libp11-kit.so.0 (0x00007fa3c1ab3000)
+	libgpg-error.so.0 => /lib/x86_64-linux-gnu/libgpg-error.so.0 (0x00007fa3c18ae000)
+	libkeyutils.so.1 => /lib/x86_64-linux-gnu/libkeyutils.so.1 (0x00007fa3c16a9000)
+	libheimntlm.so.0 => /usr/lib/x86_64-linux-gnu/libheimntlm.so.0 (0x00007fa3c14a0000)
+	libkrb5.so.26 => /usr/lib/x86_64-linux-gnu/libkrb5.so.26 (0x00007fa3c1217000)
+	libasn1.so.8 => /usr/lib/x86_64-linux-gnu/libasn1.so.8 (0x00007fa3c0f76000)
+	libhcrypto.so.4 => /usr/lib/x86_64-linux-gnu/libhcrypto.so.4 (0x00007fa3c0d43000)
+	libroken.so.18 => /usr/lib/x86_64-linux-gnu/libroken.so.18 (0x00007fa3c0b2d000)
+	libffi.so.6 => /usr/lib/x86_64-linux-gnu/libffi.so.6 (0x00007fa3c0925000)
+	libwind.so.0 => /usr/lib/x86_64-linux-gnu/libwind.so.0 (0x00007fa3c06fb000)
+	libheimbase.so.1 => /usr/lib/x86_64-linux-gnu/libheimbase.so.1 (0x00007fa3c04ed000)
+	libhx509.so.5 => /usr/lib/x86_64-linux-gnu/libhx509.so.5 (0x00007fa3c02a4000)
+	libsqlite3.so.0 => /usr/lib/x86_64-linux-gnu/libsqlite3.so.0 (0x00007fa3bffea000)
+	libcrypt.so.1 => /lib/x86_64-linux-gnu/libcrypt.so.1 (0x00007fa3bfdb1000)
+</code>
+====== Comandos relacionados con DNS ======
+  * Encontrar servidores "authoritative" para un dominio:
+<code>
+dig +short NS stackoverflow.com
+</code>
+o:
+<code>
+dig +nssearch stackoverflow.com
+</code>
+====== Generar una cadena de texto con el contenido de un archivo ======
+Encriptar:
+  cat .ssh/id_rsa| base64 -w 0
+Desencriptar:
+  cat .ssh/id_rsa| base64 -w 0 | base64 -d