{"id":104,"date":"2009-11-26T14:57:00","date_gmt":"2009-11-26T16:57:00","guid":{"rendered":"http:\/\/www.soudba.com.br\/?p=104"},"modified":"2009-11-26T14:57:00","modified_gmt":"2009-11-26T16:57:00","slug":"portas-em-uso-no-linux-e-mensagens-do-kernel","status":"publish","type":"post","link":"https:\/\/www.soudba.com.br\/?p=104","title":{"rendered":"Portas em uso no linux e mensagens do KERNEL"},"content":{"rendered":"

Para verificar as portas em uso utilize o NMAP<\/p>\n

[root@oracle logs]# nmap -sV 192.168.21.50<\/p>\n

Starting Nmap 4.11 ( http:\/\/www.insecure.org\/nmap\/ ) at 2009-11-26 13:44 AMT
Interesting ports on oracle.com (192.168.21.50):
Not shown: 1673 closed ports
PORT STATE SERVICE VERSION
22\/tcp open ssh OpenSSH 4.3 (protocol 2.0)
80\/tcp open http Apache httpd 2.2.3 ((Oracle))
111\/tcp open rpcbind 2 (rpc #100000)
682\/tcp open status 1 (rpc #100024)
1158\/tcp open http Oracle Application Server httpd 9.0.4.1.0
1521\/tcp open oracle-tns Oracle TNS Listener 10.2.0.1.0 (for Linux)
5520\/tcp open sdlog Oracle Enterprise Manager<\/p>\n

[root@oracle logs]# nmap -sV 192.168.21.50 |wc -l
16<\/p>\n

ou o LSOF<\/p>\n

[root@oracle logs]# lsof -i
COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME
portmap 2161 rpc 3u IPv4 5460 UDP *:sunrpc
portmap 2161 rpc 4u IPv4 5461 TCP *:sunrpc (LISTEN)
rpc.statd 2196 root 3u IPv4 5587 UDP *:mrm
rpc.statd 2196 root 6u IPv4 5578 UDP *:vpps-via
rpc.statd 2196 root 7u IPv4 5597 TCP *:xfr (LISTEN)
hpiod 2808 root 0u IPv4 7852 TCP localhost.localdomain:2208 (LISTEN)
python 2813 root 4u IPv4 7870 TCP localhost.localdomain:2207 (LISTEN)
sshd 2826 root 3u IPv6 7906 TCP *:ssh (LISTEN)
cupsd 2835 root 4u IPv4 7941 TCP localhost.localdomain:ipp (LISTEN)
cupsd 2835 root 6u IPv4 7944 UDP *:ipp
sendmail 2868 root 4u IPv4 8064 TCP localhost.localdomain:smtp (LISTEN)
avahi-dae 3033 avahi 13u IPv4 8432 UDP *:mdns
avahi-dae 3033 avahi 14u IPv6 8433 UDP *:mdns
avahi-dae 3033 avahi 15u IPv4 8434 UDP *:61200
avahi-dae 3033 avahi 16u IPv6 8435 UDP *:53453
ocssd.bin 3983 oracle 7u IPv4 12009 UDP localhost.localdomain:32291
ocssd.bin 3983 oracle 9u IPv4 12012 UDP localhost.localdomain:41644
ocssd.bin 3983 oracle 10u IPv4 12013 TCP localhost.localdomain:50340 (LISTEN)
ocssd.bin 3983 oracle 11u IPv4 12014 UDP localhost.localdomain:47455
ocssd.bin 3983 oracle 14u IPv4 12019 UDP localhost.localdomain:7847
ocssd.bin 3983 oracle 15u IPv4 12020 TCP localhost.localdomain:19119 (LISTEN)
java 8892 oracle 7u IPv4 714077 TCP *:5520 (LISTEN)
java 8892 oracle 10u IPv4 714078 TCP *:dbcontrol-oms (LISTEN)
java 8892 oracle 25u IPv4 720399 TCP oracle.com:44781->oracle.com:ncube-lm (ESTABLISHED)<\/p>\n

[root@oracle logs]# lsof -i:1521 |wc -l
20<\/p>\n

[root@oracle logs]# dmesg
Linux version 2.6.18-164.el5PAE (mockbuild@x86-002.build.bos.redhat.com) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-46)) #1 SMP Tue Aug 18 15:59:11 EDT 2009
BIOS-provided physical RAM map:
BIOS-e820: 0000000000010000 – 000000000009f800 (usable)
BIOS-e820: 000000000009f800 – 00000000000a0000 (reserved)
BIOS-e820: 00000000000f0000 – 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 – 00000000bfee0000 (usable)
BIOS-e820: 00000000bfee0000 – 00000000bfee3000 (ACPI NVS)
BIOS-e820: 00000000bfee3000 – 00000000bfef0000 (ACPI data)
BIOS-e820: 00000000bfef0000 – 00000000bff00000 (reserved)
BIOS-e820: 00000000c0000000 – 00000000d0000000 (reserved)
BIOS-e820: 00000000fec00000 – 0000000100000000 (reserved)
BIOS-e820: 0000000100000000 – 0000000140000000 (usable)
4224MB HIGHMEM available.
896MB LOWMEM available.
found SMP MP-table at 000f4f50
Memory for crash kernel (0x0 to 0x0) notwithin permissible range
disabling kdump<\/p>\n","protected":false},"excerpt":{"rendered":"

Para verificar as portas em uso utilize o NMAP [root@oracle logs]# nmap -sV 192.168.21.50 Starting Nmap 4.11 ( http:\/\/www.insecure.org\/nmap\/ ) at 2009-11-26 13:44 AMTInteresting ports on oracle.com (192.168.21.50):Not shown: 1673 closed portsPORT STATE SERVICE VERSION22\/tcp open ssh OpenSSH 4.3 (protocol … Continue lendo →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[50,51,82,83,155,156,176,177],"tags":[],"class_list":["post-104","post","type-post","status-publish","format-standard","hentry","category-conexoes-1521","category-conexoes-oracle-linux","category-dmesg","category-dmesg-oracle","category-lsof","category-lsof-oracle","category-nmap","category-nmap-oracle"],"_links":{"self":[{"href":"https:\/\/www.soudba.com.br\/index.php?rest_route=\/wp\/v2\/posts\/104","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.soudba.com.br\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.soudba.com.br\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.soudba.com.br\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.soudba.com.br\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=104"}],"version-history":[{"count":0,"href":"https:\/\/www.soudba.com.br\/index.php?rest_route=\/wp\/v2\/posts\/104\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.soudba.com.br\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=104"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.soudba.com.br\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=104"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.soudba.com.br\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=104"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}