Configuring monitoring _1521 Port Occupancy issues

statement: original works, from the "Blue Blog" blog, Welcome to reprint, please be sure to indicate the source, otherwise hold the copyright legal responsibility.

Deep Blue Blog:http://blog.csdn.net/huangyanlong/article/details/43935361

Premise return

The hostname was modified and changed to Hyl by Hyldb.

problem Phenomenon

Configure the listener, warning prompt, as follows:

Workaround

1. Check Port 1521

[Email protected] ~]# netstat-a

--Check port occupancy to find out that port 1521 is not occupied

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 *:p FTP *:      * 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 [unknown]:ssh [unknown]:5149]        2 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 @ISC      Siadm_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.SOC     Kunix 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_NAMESPACEuni      x 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-1m4p21erfguni                    x 2 [ACC] STREAM LISTENING 4482/var/run/audispd_eventsunix 2 [] Dgram 7618 UNIX 3 [] stream CONNECTED 7581 @/tmp/fam-root-unix 3 [] Stream CO nnected 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 CONN Ected 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 [] S                    Tream 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-r   5ibTGYpjnunix 3 [] stream CONNECTED 5737 UNIX 3 [] stream CONNECTED 5714 /var/run/acpid.socketunix 3 [] stream CONNECTED 5713 Unix 3 [] stream CONNECT         ED 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_socket      UNIX 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 CONN ected 4472 <span style= "FONT-SIZE:14PX;" > </span>

2. Check the hosts

[Email protected] ~]# vi/etc/hosts

Before modification:

# don't remove the following line, or various programs

# that require network functionality would fail.

127.0.0.1 hyldb localhost.localdomain localhost

:: 1 localhost6.localdomain6 Localhost6

192.168.56.101 hyl

~

~

~

--The HYLDB content in the previous configuration was deleted because the hostname was modified (HYLDB modified to Hyl)

Modified to:

# don't remove the following line, or various programs

# that require network functionality would fail.

127.0.0.1 localhost.localdomain localhost

:: 1 localhost6.localdomain6 Localhost6

192.168.56.101 hyl

~

~

~

~

3. Check Network

# vi/etc/sysconfig/network

-- confirm that you have added the following information

Networking=yes

Hostname=hyl

4, check whether the IPv6 is closed

View the IPv6 status to see if it is turned off

[Email protected] ~]# lsmod |grep IPv6

IPv6 435105 CNic

Xfrm_nalgo 43333 1 IPv6

Add: Close IPv6 Method 1) # vim/etc/modprobe.conf Add the following line in it, install ipv6/bin/true save and exit. 2) # Vim/etc/sysconfig/network Add the following configuration entry: Networking_ipv6=noipv6init=no

After restarting the query:

[Email protected] ~]# lsmod |grep IPv6

--No IPv6 related information is displayed, indicating that IPv6 is closed

5. After rebooting the system, check the hostname

[Email protected] ~]# hostname

-- Query Host name

Hyl

6. Execute NETCA again

Configuration monitoring, DBCA build database success.

statement: original works, from the "Blue Blog" blog, Welcome to reprint, please be sure to indicate the source, otherwise hold the copyright legal responsibility.

Deep Blue Blog:http://blog.csdn.net/huangyanlong/article/details/43935361

Configuring monitoring _1521 Port Occupancy issues