Database Oracle Express security issues
HelloI really hope you can help me with this.
I have a machine with Ubuntu installed Server and Oracle 10 g 10.2.1.0 database Express, currently I had some security because of a spam bot problems and some zombie running process on my server, I already closed all ports which are not very necessary.
After doing a Scan of Nessus, the results were a lot of patches Oracle are needed, after some research, I discovered that it takes a CSI.
My question is this, is there an alternative to the installation of this paches? As the upgrade to 11g maybe would solve my problem?
Thank you very much in advance.
Gustavo.
If you are concerned about potential security issues, you can consider getting a paid license and support - not available/possible services with XE.
That said, 11.2 XE is likely to have another set of bugs, but as is 11.2.0.2 version that is not a basic version it might be beneficial. You just need to install it and try it! (Note: there is no way to upgrade with XE, AFAIK)
Tags: Database
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On which platform do you have installed the drivers 32 bit and HSODBC? He was on a Windows 32-bit platform? It is not supported to run the 32-bit software on a Windows 64-bit platform.
There were some problems with versions 10.2.0.3 and earlier that are similar to those you typo - problems with bigint and select count. These are laid down in the 10.2.0.4 group of patches, so you should apply to your ORACLE_HOME 10.2 directories and see if the problem still occurs.
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Hi guys, I have the Kerberos authentication on lunix works well but I can not configure the database to authenticate users with Kerberos 5.
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Database Oracle 12 c: with the support of multitenent.
Red Hat Enterprise Linux Server 6.4 release (Santiago) - Kernel: 2.6.32 - 358.18.1.el6.x86_64
the newspaper made with Kerberos.
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SQL.ora
# Network Configuration file SQLNET.ora:... /Network/admin/SQLNET.ora
# Generated by Oracle configuration tools.
SQLNET. AUTHENTICATION_SERVICES = (DOB KERBEROS5)
SQLNET. KERBEROS5_KEYTAB = /etc/oracle.keytab.03.27.14
SQLNET. KERBEROS5_REALMS = /etc/krb5.realms
SQLNET. KERBEROS5_CC_NAME = / tmp/krb5cc
SQLNET. KERBEROS5_CONF = /etc/krb5.conf
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TRACE_LEVEL_SERVER = ADMIN
TRACE_LEVEL_CLIENT = ADMIN
TRACE_LEVEL_LISTENER = ADMIN
krb5.conf
#File modified by ipa-client-install
INCLUDEDIR /var/lib/sss/pubconf/krb5.include.d/
[libdefaults]
default_realm = MY-DOMAIN
dns_lookup_realm = false
dns_lookup_kdc = false
RDN = false
ticket_lifetime = 24 hours
address = yes
[realms]
MY. AREA = {}
KDC = kdc - server.my - area: 88
kdc = master_kdc - server.my - domain: 88
admin_server = kdc - server.my - domain: 749
domaine_par_defaut = my-domain
pkinit_anchors = FILE:/etc/ipa/ca.crt
}
[domain_realm]
.my-domain = MY-DOMAIN
My-domain = MY-DOMAIN
krb5. Realms
My-MY-DOMAIN
tnsnames.ora
# Network Configuration file tnsnames.ora:... /Network/admin/tnsnames.ora
# Generated by Oracle configuration tools.
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP) (HOST = my - machine.my -)(PORT = 1521) area)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl.my - domain)
)
)
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Mar 27 15:15:43 kdc - server.my - domain krb5kdc [2714] (info): TGS_REQ (4 {18 17 16 23} ETYPE) 128.122.72.166: PROCESS_TGS: authtime 0, < unknown client > < unknown Server >, wrong net address
Hi again, my steps below. I apologize for my English
And I don't know how to remove links e-mail. I.e. [email protected] should be just krbuser to somedomain.ru.
Test configuration:
Kerberos (KDC, Microsoft) server:
- Host: dc1.somedomain.ru (10.0.2.11)
- Server Windows 2008/2012 tested
- Active Directory (KDC)
- Domain: SOMEDOMAIN.RU
Kerberos (Oracle DB server) client:
- Host: dboraclen1.somedomain.ru (10.0.2.76)
- RedHat Linux
- Oracle 11.2.0.4 Server Standard Edition (* patched)
Oracle client:
- Host: dbclient.somedomain.ru (10.0.2.7)
- RedHat Linux
- Oracle 11.2.0.4 client
P1: Setting up the Kerberos client to interoperate with KDC in Windows Server 2008/2012
On dboraclen1.somedomain.ru.
1.1 Kerberos software control
[root @ /] $ cd/etc
[root @ / etc] $ rpm - qa | grep-i krb5
krb5-workstation - 1.2.7 - 44
pam_krb5-1, 73-1
krb5-libs - 1.2.7 - 441.2 configure Kerberos
Check/change:
/etc/krb5.conf
/ etc/krb5. Realms
/ etc/KRB. Realms
/ etc/hosts
/ etc/services
# /etc/krb5.conf:
[record]
default=file:/var/log/krb5libs.log
KDC=file:/var/log/krb5kdc.log
admin_server=file:/var/log/kadmind.log[libdefaults]
default_realm = SOMEDOMAIN.RU
dns_lookup_realm = falsedns_lookup_kdc = false
ticket_lifetime = 24 hours
renew_lifetime = 7 d
address = true
[realms]
SOMEDOMAIN.RU = {}
KDC = dc1.somedomain.ru:88
}[domain_realm]
. somedomain.ru = SOMEDOMAIN.RU
somedomain.ru = SOMEDOMAIN.RU[CDC]
Profile = /var/kerberos/krb5kdc/kdc.conf# /etc/krb5.realms:
. somedomain.ru = SOMEDOMAIN.RU
# /etc/krb.realms:
. somedomain.ru = SOMEDOMAIN.RU# / etc/hosts:
127.0.0.1 localhost.localdomain localhost10.0.2.76 dboraclen1.somedomain.ru dboraclen1
10.0.2.11 dc1.somedomain.ru dc1# / etc/services:
88/tcp kerberos5 Kerberos krb5 # Kerberos v5
88/udp kerberos5 Kerberos krb5 # Kerberos v5!!! Using only capital letters with domain, only lowercase with names of user/hostames. It is important.
- 1.3 Kerberos software control on the database server
(oracle owner = oracle, ORACLE_HOME= /Oracle/u01/oracle/database/11r2)
[oracle@ /home/oracle]$ cd $ORACLE_HOME/bin [oracle@ /Oracle/u01/oracle/database/11r2/bin]$ ./adapters Installed Oracle Advanced Security options are: ... Kerberos v5 authentication RADIUS authentication or [oracle@ /Oracle/u01/oracle/database/11r2/bin]$ ./adapters ./oracle ... Kerberos v5 authentication RADIUS authentication
P2: Configuration of KDC in Windows 2008/2012
On dc1.somedomain.ru.
2.1 create a user in Microsoft Active Directory
In the menu "Administration / Active Directory users and computers:
[General]
Name: krbuser
Family name: eu1
View name: kerberos user 1[Account]
User logon name: [email protected]Main 2.2.create for Oracle database in Microsoft AD
Create the user with the name exactly as database host name, i.e. the dboraclen1.somedomain.ru and password, i.e. oracle:
[General]
Name: dboraclen1.somedomain.ru
Full name: dboraclen1.somedomain.ru[Account]
User logon name: [email protected][Account options]
Password never expires.!!! Select the option: do not use Kerberos preauthentication
!!! Deselect the option "user must change password on the next logon".
To complete the creation use ktpass.exe.
Run:
C:\Program Files\Support Tools > ktpass princ - oracle/[email protected] mapuser - dboraclen1-pass oracle-crypto RC4-HMAC-NT - out c:\temp\keytab.dboraclen1
Targeting the domain controller: dc1.somedomain.ru
The setting method using legacy password
Correctly mapped dboraclen1.somedomain.ru oracle/dboraclen1.somedomain.ru.
WARNING: type pType and account do not match. This could cause problems.
Created key.
Output keytab to c:\temp\keytab.dboraclen1 file:
Keytab version: 0 x 502
KeySize 81 oracle/[email protected] ptype 0Copy c:\temp\keytab.dboraclen1 into the directory etc./etc/etc on Oracle DB machine (dboraclen1.somedomain.ru).
P3: Configuring Oracle DB to interoperate with KDC
On dboraclen1.somedomain.ru.
sqlnet.ora 3.1
#/Oracle/u01/oracle/database/11r2/network/admin/sqlnet.ora
NAMES. DIRECTORY_PATH = (TNSNAMES)
SQLNET. KERBEROS5_REALMS = /etc/krb5.realms
SQLNET. KERBEROS5_CONF=/etc/krb5.conf
SQLNET. KERBEROS5_KEYTAB=/etc/keytab.dboraclen1
SQLNET. AUTHENTICATION_KERBEROS5_SERVICE = oracle
SQLNET. KERBEROS5_CONF_MIT = true
SQLNET. AUTHENTICATION_SERVICES = (DOB, Kerberos5)SQLNET. KERBEROS5_CLOCKSKEW = 6000
3.2 check/change settings on the server of DB Oracle
OS_AUTHENT_PREFIX =""
REMOTE_OS_AUTHENT = FALSE3.3.create user database in Oracle DB
The user sys (System):
SQL > create user '[email protected]' identified externally.
Created by the user.SQL > grant create session, resources to '[email protected]';
Grant succeeded.or
SQL > create user KERBUSER identified externally as ' [email protected]';
Created by the user.SQL > grant create session, resource at KERBUSER.
Grant succeeded.P4 - configuration of Oracle customers
On each client computer.
4.1 configuration of oracle (for Linux)
The configuration files (krb5.conf, krb5.realms, krb.realms) Kerberos and armed, services may be same as above.
Create a linux user, i.e. krbuser.
# /home/krbuser/sqlnet.ora
NAMES. DIRECTORY_PATH = (TNSNAMES)SQLNET. KERBEROS5_CC_NAME = / tmp/krb5cc_502
SQLNET. KERBEROS5_CONF = /etc/krb5.conf
SQLNET. KERBEROS5_CONF_MIT = true
SQLNET. AUTHENTICATION_SERVICES = (kerberos5)
SQLNET. KERBEROS5_CLOCKSKEW = 6000
# /home/krbuser/tnsnames.ora
DB_test_auth =(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = dboraclen1.somedomain.ru) (PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = GlobalDB)
)
)
4.2 get ticket (TGT) initial kerberos:
Run $ORACLE_HOME/bin/okinit:
[krbuser @ / home/krbuser] $ okinit EI 23
Utilities for Linux Kerberos: Version 11.2.0.4.0 - Production on August 16, 2011 15:44:11
Copyright (c) 1996, Oracle 2011. All rights reserved.
Password for [email protected]:<-- ad="" user="">-->
[krbuser @ / home/krbuser] $Check the TGT with $ORACLE_HOME/bin/oklist:
[krbuser @ / home/krbuser] $ oklist
Utilities for Linux Kerberos: Version 11.2.0.4.0 - Production on August 16, 2011 15:45:46
Copyright (c) 1996, Oracle 2011. All rights reserved.
Ticket cache: / tmp/krb5cc_502
Default principal: [email protected]
Valid from expires Principal
November 16, 2013 15:41:52 16 November 2013 23:44:11 krbtgt/SOMEDOMAIN. [email protected]
[krbuser @ / home/krbuser] $and
[krbuser @ / home/krbuser] $ ls tmp/-l/krb5cc_502
-rw - 1 krbuser s/n 527 Nov 15:41 16 / tmp/krb5cc_5024.3.test
Check the time synchronization between the clients and the server of DB.
[krbuser @ / home/krbuser] $ sqlplus /@DB_test_auth
SQL * more: version 11.2.0.4.0 - Production on Tue Nov 16 15:56:53 2013
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Connected to:
Oracle Database 11 g Release 11.2.0.4.0 - 64 bit ProductionSQL >
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Oracle Express does not not at startup
Hello
I need to analyze some things for my work and I decided to that home. To do this, I want to install Oracle Express 11 g on a desktop at home. I read that Oracle Express will be loaded at the start of the desktop computer and you can unload the database after the start. It's not what I really want. What I would like is that I can load Oracle Express the time I need, but have no active on other times.
Is it possible to configure Oracle Express like this. I already had a peek at the most common options, but I couldn't find anything (but maybe I just missing).
Thank you
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What I would like is that I can load Oracle Express the time I need, but have no active on other times.
You specify your operating system, assuming that Windows (if no, please specify): If Yes, you can
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Hello
I was wondering if someone can help me, I'm looking to change my environment hosted on a virtual server. The server running VMWARE Windows 2012 R2 and Oracle Express Edition with the latest version of the APEX.
The server would be:
3Gig Ram
25Gig storage
1 virtual processor
Someone at - he no idea how it would perform? I currently have applications with up to 200 people using the system at a point in time. Performance is critical obviusly and I don't want this virtual solution if I'll take a drop in performance.
Just to clarify, the only reason why I'm looking to spend are all my clients are located in South Africa and I am currently hosted in the United Kingdom. The shift would be seriously reduced if I moved to accommodation in South Africa.
Thanks in advance.
Andrew
Hi André,.
I did a few tests of performance and scalability with APEX on XE with JMeter (https://jmeter.apache.org/)
The limitation of the XE is mainly database size (I think only 11 GB for user data) and max 1 GB for the database altogether instance.
When you use the EPG of APEX I started to run into trouble after 20 + sessions at the same time.
When you use the earpiece of the APEX, I was able to push a tot of factor 2 3...
After that XE has usually crashed due to problems of memory.
Everything depends on the application and how active users are their session but more importantly could give you a good indication that XE isn't the way to go for 200 users working at the same time.
Maybe check jmeter (very easy) with your application and the config to see when it crashes. SE1 could also be a cheap alternative.
Concerning
Bottom
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Oracle Express Edition and Windows encrypted files (EFS) system
Hello
I want to use oracle express edition with filesystem encrypted Windows. I tried some options like encryption folder xe. But connection can not be established when efs is used. There is a compatibility problem between oracle xe and windows efs? On the page of the Oracle, it is stated that the oracle database is compatible with the Windows EFS.
Thank you very much for the help.There is no installer available for Windows 64-bit - some people have managed to hack the facility - a search on these forums - Re: Y at - it Oracle XE 11g for 64-bit windows?
HTH
Srini
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