Configure listening _ 1521 port occupation, and listening _ 1521 port occupation
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Deep Blue blog: http://blog.csdn.net/huangyanlong/article/details/43935361
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Changed the host name from hyldb to hyl.
Symptom
Configure the listener. The warning message is as follows:
Solution
1. Check port 1521
[Root @ hyl ~] # Netstat-
-- Check port usage and check that port 1521 is not in use
Active Internet connections (servers and established)Proto Recv-Q Send-Q Local Address Foreign Address State tcp 0 0 localhost.localdomain:2208 *:* LISTEN tcp 0 0 *:sunrpc *:* LISTEN tcp 0 0 *:pftp *:* LISTEN tcp 0 0 localhost.localdomain:ipp *:* LISTEN tcp 0 0 localhost.localdomain:smtp *:* LISTEN tcp 0 0 localhost.localdomain:2207 *:* LISTEN tcp 0 0 *:ssh *:* LISTEN getnameinfo failedgetnameinfo failedtcp 0 132 [UNKNOWN]:ssh [UNKNOWN]:51492 ESTABLISHED udp 0 0 *:spmp *:* udp 0 0 *:659 *:* udp 0 0 *:37437 *:* udp 0 0 *:mdns *:* udp 0 0 *:sunrpc *:* udp 0 0 *:ipp *:* udp 0 0 *:mdns *:* udp 0 0 *:32372 *:* Active UNIX domain sockets (servers and established)Proto RefCnt Flags Type State I-Node Pathunix 2 [ ACC ] STREAM LISTENING 4226 @ISCSIADM_ABSTRACT_NAMESPACEunix 2 [ ACC ] STREAM LISTENING 4938 /var/run/dbus/system_bus_socketunix 2 [ ACC ] STREAM LISTENING 7578 @/tmp/fam-root-unix 2 [ ACC ] STREAM LISTENING 5021 /var/run/sdpunix 2 [ ACC ] STREAM LISTENING 5102 /var/run/pcscd.communix 2 [ ACC ] STREAM LISTENING 5127 /var/run/acpid.socketunix 2 [ ACC ] STREAM LISTENING 6197 /var/run/cups/cups.sockunix 2 [ ACC ] STREAM LISTENING 6633 /var/run/avahi-daemon/socketunix 2 [ ACC ] STREAM LISTENING 6473 /dev/gpmctlunix 2 [ ACC ] STREAM LISTENING 4212 @ISCSID_UIP_ABSTRACT_NAMESPACEunix 2 [ ] DGRAM 1102 @/org/kernel/udev/udevdunix 2 [ ACC ] STREAM LISTENING 6509 /tmp/.font-unix/fs7100unix 2 [ ACC ] STREAM LISTENING 7135 /tmp/.gdm_socketunix 2 [ ACC ] STREAM LISTENING 7165 /tmp/.X11-unix/X0unix 2 [ ] DGRAM 5161 @/org/freedesktop/hal/udev_eventunix 17 [ ] DGRAM 4527 /dev/logunix 2 [ ACC ] STREAM LISTENING 5152 @/var/run/hald/dbus-R5ibTGYpjnunix 2 [ ACC ] STREAM LISTENING 5153 @/var/run/hald/dbus-1m4p21ErfGunix 2 [ ACC ] STREAM LISTENING 4482 /var/run/audispd_eventsunix 2 [ ] DGRAM 7618 unix 3 [ ] STREAM CONNECTED 7581 @/tmp/fam-root-unix 3 [ ] STREAM CONNECTED 7580 unix 3 [ ] STREAM CONNECTED 7571 /var/run/dbus/system_bus_socketunix 3 [ ] STREAM CONNECTED 7570 unix 3 [ ] STREAM CONNECTED 7448 /tmp/.X11-unix/X0unix 3 [ ] STREAM CONNECTED 7447 unix 3 [ ] STREAM CONNECTED 7364 /tmp/.X11-unix/X0unix 3 [ ] STREAM CONNECTED 7363 unix 3 [ ] STREAM CONNECTED 7261 /tmp/.font-unix/fs7100unix 3 [ ] STREAM CONNECTED 7260 unix 3 [ ] STREAM CONNECTED 7217 /var/run/pcscd.communix 3 [ ] STREAM CONNECTED 7216 unix 3 [ ] STREAM CONNECTED 7264 /tmp/.X11-unix/X0unix 3 [ ] STREAM CONNECTED 7190 unix 3 [ ] STREAM CONNECTED 7177 /var/run/acpid.socketunix 3 [ ] STREAM CONNECTED 7176 unix 2 [ ] DGRAM 7163 unix 3 [ ] STREAM CONNECTED 6636 /var/run/dbus/system_bus_socketunix 3 [ ] STREAM CONNECTED 6635 unix 3 [ ] STREAM CONNECTED 6630 unix 3 [ ] STREAM CONNECTED 6629 unix 2 [ ] DGRAM 6627 unix 2 [ ] DGRAM 6467 unix 2 [ ] DGRAM 6426 unix 2 [ ] DGRAM 6379 unix 2 [ ] DGRAM 6324 unix 2 [ ] DGRAM 6109 unix 2 [ ] DGRAM 6068 unix 2 [ ] DGRAM 5958 unix 3 [ ] STREAM CONNECTED 5930 /var/run/dbus/system_bus_socketunix 3 [ ] STREAM CONNECTED 5929 unix 3 [ ] STREAM CONNECTED 5903 @/var/run/hald/dbus-R5ibTGYpjnunix 3 [ ] STREAM CONNECTED 5902 unix 3 [ ] STREAM CONNECTED 5896 @/var/run/hald/dbus-R5ibTGYpjnunix 3 [ ] STREAM CONNECTED 5893 unix 3 [ ] STREAM CONNECTED 5738 @/var/run/hald/dbus-R5ibTGYpjnunix 3 [ ] STREAM CONNECTED 5737 unix 3 [ ] STREAM CONNECTED 5714 /var/run/acpid.socketunix 3 [ ] STREAM CONNECTED 5713 unix 3 [ ] STREAM CONNECTED 5708 @/var/run/hald/dbus-R5ibTGYpjnunix 3 [ ] STREAM CONNECTED 5707 unix 3 [ ] STREAM CONNECTED 5156 @/var/run/hald/dbus-1m4p21ErfGunix 3 [ ] STREAM CONNECTED 5155 unix 2 [ ] DGRAM 5101 unix 3 [ ] STREAM CONNECTED 5016 /var/run/dbus/system_bus_socketunix 3 [ ] STREAM CONNECTED 5015 unix 2 [ ] DGRAM 4987 unix 2 [ ] DGRAM 4977 unix 3 [ ] STREAM CONNECTED 4942 unix 3 [ ] STREAM CONNECTED 4941 unix 3 [ ] STREAM CONNECTED 4900 unix 3 [ ] STREAM CONNECTED 4899 unix 2 [ ] DGRAM 4798 unix 2 [ ] DGRAM 4543 unix 3 [ ] STREAM CONNECTED 4473 unix 3 [ ] STREAM CONNECTED 4472 <span style="font-size:14px;"> </span>
2. Check hosts
[Root @ hyl ~] # Vi/etc/hosts
Before modification:
# Do not remove the following line, or various programs
# That require network functionality will fail.
127.0.0.1 hyldb localhost. localdomain localhost
: 1 localhost6.localdomain6 localhost6
192.168.56.101 hyl
~
~
~
-- Because the host name (hyldb is changed to hyl) is modified, the contents of hyldb in the previous configuration are deleted.
To:
# Do not remove the following line, or various programs
# That require network functionality will fail.
127.0.0.1 localhost. localdomain localhost
: 1 localhost6.localdomain6 localhost6
192.168.56.101 hyl
~
~
~
~
3. Check the network
# Vi/etc/sysconfig/network
-- Confirm that the following information is added:
NETWORKING = yes
HOSTNAME = hyl
4. Check whether ipv6 is disabled.
Check ipv6 status and whether ipv6 is disabled
[Root @ hyl ~] # Lsmod | grep ipv6
Ipv6 435105 17 cnic
Xfrm_nalgo 43333 1 ipv6
Supplement: Disable ipv6 method 1) # vim/etc/modprobe. conf Add the following line to it, install ipv6/bin/true to save and exit. 2) # Add the following configuration item to vim/etc/sysconfig/network: NETWORKING_IPV6 = now.6init = no
Query after restart:
[Root @ hyl ~] # Lsmod | grep ipv6
-- Ipv6 information is not displayed, indicating that ipv6 is disabled.
5. After the system is restarted, view the hostname
[Root @ hyl ~] # Hostname
-- Query the Host Name
Hyl
6. Execute netca again
The listener and dbca databases are successfully configured.
Statement:Original Works are from the blog of "Deep Blue blog". You are welcome to repost them. Please indicate the source when you repost them. Otherwise, the copyright will be held legally responsible.
Deep Blue blog: http://blog.csdn.net/huangyanlong/article/details/43935361