{"id":346,"date":"2012-01-13T00:46:26","date_gmt":"2012-01-12T23:46:26","guid":{"rendered":"http:\/\/diablo.craem.net\/wordpress\/?p=346"},"modified":"2012-01-13T00:46:26","modified_gmt":"2012-01-12T23:46:26","slug":"saber-que-servidor-dhcp-te-ha-dado-ip-en-una-red-local-con-debian-ubuntu","status":"publish","type":"post","link":"https:\/\/diablo.craem.net\/?p=346","title":{"rendered":"Saber qu\u00e9 servidor DHCP te ha dado ip en una red local con Debian \/ Ubuntu"},"content":{"rendered":"

Esto es m\u00e1s bien un apunte…. en windows, de las pocas cosas que ya me gustan es que, al hacer un ipconfig \/all te d\u00e1 toda la info de un tir\u00f3n, pero en linux, no es lo mismo.
\nEn alguna ocasi\u00f3n, he estado en alg\u00fan cliente con problemas de red… servidores dhcp duplicados, un router de telef\u00f3nica dando ip’s ….. y nada m\u00e1s conectar el port\u00e1til a la red y tener IP me gusta saber este tipo de informaci\u00f3n, para ir descartando problemas.
\nEstuve buscando hace d\u00ed\u00adas la info para saber cu\u00e1l es el servidor dhcp de la red sin necesidad de lanzar el wireshark y encontr\u00e9 esto:
\nNos vamos a la carpeta \/var\/lib\/dhcp y all\u00ed\u00ad encontraremos una serie de ficheros…. editamos con el nano el que tenga la fecha de modificaci\u00f3n m\u00e1s nueva:
\n
\nroot@persefone:\/var\/lib\/dhcp# ls -l
\ntotal 28
\n-rw-r--r-- 1 root root 4920 ene 13 00:39 dhclient-0d77ab89-33d7-42c5-8779-d4d8f252fc25-eth0.lease
\n-rw-r--r-- 1 root root 980 ene 12 09:27 dhclient-70c7e97f-cf63-45f7-b485-ed1e72515ff4-eth1.lease
\n-rw-r--r-- 1 root root 990 ene 11 15:52 dhclient-796f7cb2-a301-4efe-91fb-7af9d0076b79-eth1.lease
\n-rw-r--r-- 1 root root 740 ene 10 16:55 dhclient-a83a41a9-7e4f-4568-8e33-9c1060465cfa-eth1.lease
\n-rw-r--r-- 1 root root 2080 ene 12 23:38 dhclient-b74de912-6b58-4e75-8e55-918f92db675a-eth1.lease
\n-rw-r--r-- 1 root root 384 ene 12 17:54 dhclient-f9744661-fd4a-483a-91d9-ee28f39cfd09-eth1.lease
\nroot@persefone:\/var\/lib\/dhcp#
\n<\/code>
\neditamos el m\u00e1s nuevo y vermos algo tal que:
\n
\nlease {
\n interface \"eth0\";
\n fixed-address 192.168.9.65;
\n option subnet-mask 255.255.255.0;
\n option routers 192.168.9.254;
\n option dhcp-lease-time 600;
\n option dhcp-message-type 5;
\n option domain-name-servers 192.168.9.4,192.168.9.1;
\n option dhcp-server-identifier 192.168.9.7;
\n option domain-name \"craem.net\";
\n renew 4 2012\/01\/12 23:47:33;
\n rebind 4 2012\/01\/12 23:52:25;
\n expire 4 2012\/01\/12 23:53:40;
\n}
\n<\/code>
\nCon toda la info…. para depurar \ud83d\ude42<\/p>\n","protected":false},"excerpt":{"rendered":"

Esto es m\u00e1s bien un apunte…. en windows, de las pocas cosas que ya me gustan es que, al hacer un ipconfig \/all te d\u00e1 toda la info de un tir\u00f3n, pero en linux, no es lo mismo. En alguna ocasi\u00f3n, he estado en alg\u00fan cliente con problemas de red… servidores dhcp duplicados, un router […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[52,58,62,89],"class_list":["post-346","post","type-post","status-publish","format-standard","hentry","category-linux","tag-console","tag-debian","tag-dhcp","tag-ipconfig"],"_links":{"self":[{"href":"https:\/\/diablo.craem.net\/index.php?rest_route=\/wp\/v2\/posts\/346","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/diablo.craem.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/diablo.craem.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/diablo.craem.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/diablo.craem.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=346"}],"version-history":[{"count":0,"href":"https:\/\/diablo.craem.net\/index.php?rest_route=\/wp\/v2\/posts\/346\/revisions"}],"wp:attachment":[{"href":"https:\/\/diablo.craem.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=346"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/diablo.craem.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=346"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/diablo.craem.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=346"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}