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Linux Firewall: IPTables to Block/Allow Incoming Traffic
 
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A tutorial on how to initially configure your linux firewall using IPTables to block/allow traffic. Thank you for watching!! See you next time! :) Please "like" this video if you found it helpful! THANK YOU!! Twitter & Facebook: SysAdmGirl
Views: 42220 SysAdmGirl
Part I  - Oracle Database 12c CentOS/RHEL/Oracle Linux 6 Installation
 
01:04:12
Part I of this presentation discusses how to setup and prepare CentOS / RHEL / Oracle Linux, starting version 6.5 for Oracle Database 12c installation. It includes Network, NTP, Iptables, SELInx, File System, Swap Space Configuration, Required RPM Packages Installation, Resource Limits and Kernel Parameters configuration.
Views: 1475 Ahmed El Koutbia
Disable IPTABLES of a Linux System
 
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Listing and Flushing the “iptables” rules Stopping iptables service Disabling startup of iptables service at system startup Commands service iptables stop chkconfig iptables off
Views: 2167 Amazing Admins
Stopping the iptables service
 
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above video shows how to stop the iptables service in linux which is a prerequisite for the installation of certain oracle softwares.
Views: 128 dbaforbeginners
How to install oracle 12c on Linux
 
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Learn ow to install the latest release for oracle database i.e 12C. watch the step by step installation in the above video. Click the below link for all the commands and steps http://techlair.info/2015/11/08/oracle12cinstall/ Step 1 - Edit Host Files - /etc/hosts 127.0.0.1 localhost.localdomain localhost 192.168.0.210 oracle_12C.localdomain oracle_12C Step 2 - Edit Kernel Parameters /etc/sysctl.conf fs.file-max = 6815744 kernel.sem = 250 32000 100 128 kernel.shmmni = 4096 kernel.shmall = 1073741824 kernel.shmmax = 4398046511104 net.core.rmem_default = 262144 net.core.rmem_max = 4194304 net.core.wmem_default = 262144 net.core.wmem_max = 1048576 fs.aio-max-nr = 1048576 net.ipv4.ip_local_port_range = 9000 65500 sysctl -p - apply changes Step 3 - Edit Limits file - etc/security/limits.conf oracle soft nofile 1024 oracle hard nofile 65536 oracle soft nproc 2047 oracle hard nproc 16384 oracle soft stack 10240 oracle hard stack 32768 Step 4 - Install dependencies yum install binutils -y yum install compat-libcap1 -y yum install compat-libstdc++-33 -y yum install compat-libstdc++-33.i686 -y yum install gcc -y yum install gcc-c++ -y yum install glibc -y yum install glibc.i686 -y yum install glibc-devel -y yum install glibc-devel.i686 -y yum install ksh -y yum install libgcc -y yum install libgcc.i686 -y yum install libstdc++ -y yum install libstdc++.i686 -y yum install libstdc++-devel -y yum install libstdc++-devel.i686 -y yum install libaio -y yum install libaio.i686 -y yum install libaio-devel -y yum install libaio-devel.i686 -y yum install libXext -y yum install libXext.i686 -y yum install libXtst -y yum install libXtst.i686 -y yum install libX11 -y yum install libX11.i686 -y yum install libXau -y yum install libXau.i686 -y yum install libxcb -y yum install libxcb.i686 -y yum install libXi -y yum install libXi.i686 -y yum install make -y yum install sysstat -y yum install unixODBC -y yum install unixODBC-devel -y Step 5 - Add Groups and Users groupadd -g 54321 oinstall groupadd -g 54322 dba groupadd -g 54323 oper useradd -u 54321 -g oinstall -G dba,oper oracle passwd oracle Step 6 - /etc/security/limits.d/90-nproc.conf # Change this * soft nproc 1024 # To this * - nproc 16384 Step 7 - Set SELINUX SELINUX=permissive run the command after edit setenforce Permissive Step 8 - Stop Firewall # service iptables stop # chkconfig iptables off Step 9 - Create directories for oracle Installation mkdir -p /oracle/product/12.1.0/db_1 chown -R oracle:oinstall /oracle chmod -R 775 /oracle Step 10 - xhost + Step 11 - Edit bash profile for oracle user /home/oracle/.bash_profile # Oracle Settings export TMP=/tmp export TMPDIR=$TMP export ORACLE_HOSTNAME=oracle_12C.localdomain export ORACLE_UNQNAME=db1 export ORACLE_BASE=/oracle export ORACLE_HOME=$ORACLE_BASE/product/12.1.0/db_1 export ORACLE_SID=db1 export PATH=/usr/sbin:$PATH export PATH=$ORACLE_HOME/bin:$PATH export LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib export CLASSPATH=$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib Step - 12 Extract Installation Files unzip linuxamd64_12c_database_1of2.zip unzip linuxamd64_12c_database_2of2.zip Step - 13 Start the Oracle Universal Installer ./runInstaller Post Installation dit the "/etc/oratab" file setting the restart flag for each instance to 'Y' cdb1:/u01/app/oracle/product/12.1.0/db_1:Y Technology Lair : www.technologylair.org Subscribe : http://www.youtube.com/subscription_center?add_user=technologylair For More Videos : http://www.youtube.com/user/technologylair/videos For Video Tutorials :http://www.youtube.com/playlist?list=PLC71CFFF7A916DCAA For Android : http://www.youtube.com/playlist?list=PLUXK1VpPWQKHI1l-NvM5jvNKKnmNy9eHp For Linux : https://www.youtube.com/playlist?list=PLUXK1VpPWQKHV2xOmjQgUNj3Hrmcslj-H Kalam e Iqbal : http://www.youtube.com/playlist?list=PLF057785BD260F061 Like us on Facebook : https://www.facebook.com/technologylair Tweet us : http://twitter.com/technologylair Follow us : https://plus.google.com/u/0/118196883367288585963/posts Pin us : http://www.pinterest.com/technologylair/
Views: 127517 TechLair
Installing iptables services on CentOS 7
 
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Procedure for installing the iptables-services package on CentOS 7, disabling firewalld, and enabling iptables.
Views: 1072 Mike Murphy
Ubuntu 16.04 LTS - Server | Basic Linux Firewall mit Iptables (Deutsch)
 
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#!/bin/sh # Firewall-Skript für IPtables/Netfilter IPTABLES=/sbin/iptables # Definiere Variablen ECHO=/bin/echo # Definiere Variablen $ECHO Leere alle Ketten $IPTABLES -F # Leert alle Ketten: INPUT, OUTPUT und FORWARD $IPTABLES -t nat -F # Leert die NAT-Tabelle $ECHO Erlaube Loopback $IPTABLES -A INPUT -i lo -j ACCEPT # Akzeptiere Verkehr auf der Loopback-Schnittstelle $IPTABLES -A OUTPUT -o lo -j ACCEPT # Akzeptiere Verkehr auf der Loopback-Schnittstelle $ECHO Erlaube neue und aufgebaute Verbindungen OUTPUT $IPTABLES -A OUTPUT -m state --state NEW,ESTABLISHED,RELATED -j ACCEPT # Erlaube neue und aufgebaute Verbindungen OUTPUT $IPTABLES -A FORWARD -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT # Erlaube neue und aufgebaute Verbindungen OUTPUT $ECHO Erlaube Antworten auf Aufgebaute Verbinungen $IPTABLES -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT # Erlaube Antworten auf Aufgebaute Verbinungen $ECHO Erlaube SSH-Verbindungen auf Port 2222 $IPTABLES -A INPUT -p tcp --dport 2222 -j ACCEPT # Akzeptiere SSH Verbindungen auf Port 22 #$ECHO Erlaube Webserver auf Port 80 # Akzeptiere Webserver auf Port 80 #$IPTABLES -A INPUT -p tcp --dport 80 -j ACCEPT $ECHO Erlaube Samba im lokalen Netzwerk # Ports für Samba-Server $IPTABLES -A INPUT -s 192.168.1.0/24 -p tcp --dport 135 -j ACCEPT $IPTABLES -A INPUT -s 192.168.1.0/24 -p udp --dport 137 -j ACCEPT $IPTABLES -A INPUT -s 192.168.1.0/24 -p udp --dport 138 -j ACCEPT $IPTABLES -A INPUT -s 192.168.1.0/24 -p tcp --dport 139 -j ACCEPT $IPTABLES -A INPUT -s 192.168.1.0/24 -p tcp --dport 445 -j ACCEPT $ECHO Setze die Default-Policy auf DROP $IPTABLES -P INPUT DROP # Setze die Default-Policy auf DROP $IPTABLES -P OUTPUT DROP $IPTABLES -P FORWARD DROP $ECHO Firewall läuft $IPTABLES -L _________________________________________________________________ #!/bin/sh # Dieses Skript löscht alle Firewall-Regeln # und setzt die Default-Policy auf ACCEPT IPTABLES=/sbin/iptables # Definiere Variablen ECHO=/bin/echo # Definiere Variablen $ECHO Setze Default-Policy auf ACCEPT $IPTABLES -P INPUT ACCEPT # Setze die Default-Policy auf ACCEPT $IPTABLES -P OUTPUT ACCEPT # Setze die Default-Policy auf ACCEPT $IPTABLES -P FORWARD ACCEPT # Setze die Default-Policy auf ACCEPT $ECHO Leere alle Ketten $IPTABLES -F # Leert alle Ketten: INPUT, OUTPUT und FORWARD $IPTABLES -t nat -F # Leert die NAT-Tabelle $IPTABLES -L $ECHO Firewall ist aus!!!
Views: 2498 unicks.eu
Disable firewall and SELinux Oracle Linux 6
 
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Steps to disable firewall and SELinux Oracle Linux 6 to install Oracle 11g database. http://sa-oracle.snapdedo.com/2012/05/install-oracle-11g-on-oracle-linux-6.html
Views: 8359 Scott Jenkins
IPtable in Linux with Examples - Part 2
 
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This video illustrates the Iptables Firewall Rules which allows the system administrators to manage incoming and outgoing traffics. For more explanation on this video: https://www.linuxhelp.com/iptable-linux-examples-part-2/
Views: 183 Linux Help
Linux Network Configuration
 
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Follow Eli on the Vlog Channel: https://www.youtube.com/user/EliComputerGuyLive Info Level: Intermediate Presenter: Eli the Computer Guy Date Created: September 16, 2010 Length of Class: 51 Mintues Tracks Linux Prerequisites Introduction to Linux Installing Linux Basic Linux Tasks VIM for File Editing Navigation in Linux Purpose of Class This class teaches students how to configure their Linux servers networking. Topics Covered ifconfig Command DHCP Releae and Renew Restarting the Network Service Editing the interfaces File to Setup a Static IP Address Editing the resolv.conf File for DNS Changing the Serves Hostname' Ping for Troubleshooting UFW Firewall Configuration Class Notes Basic Tasks To Show Current IP Addresses and Network Configuration = sudo ifconfi To Release and Renew IP Address = sudo dhclient To Restart the Networking Service = sudo /etc/init.d/networking restart Always Restart the Networking Service After Changing Network Configurations Network Config file To Edit the Network Adapter Configurations = sudo vim /etc/network/interfaces auto eth0 = Auto Negotiate Speed for Ethernet Card 0 iface eth0 inet static /dhcp = Ethernet Card 0 Either Static or DHCP Address. If DHCP Don't Go Further. address 192.168.1.100 = Static IP Address netmask 255.255.255.0 = Subnet Mssk network 192.168.1.0 = Network (Generally Your IP Address Siply with a 0 in the Last Octet)) broadcast 192.168.1.255 = Broadcast Address (The Last Address in Your Subnet. Generally Your IP Address with a 255 in the Last Octet.) gateway 192.168.1.1 = Default Gateway. Generally Your ISP Modem or Router To Edit the DNS Resolution File = sudo vim /etc/resolv.conf To See Current Hostname = sudo /bin/hostname To Change Hostname = sudo /bin/hostname newhostname Ping To Determine if You Can See an IP Address = ping IP Address To Determine DNS is Working = ping domainname UFW firewall To Chaneg Default Handling of Ports When UFW is Enabled = sudo ufw default allow/deny To Turn UFW on or Off = sudo ufw enable/disable To Open or Close Ports for Everyone = sudo ufw allow/deny port# To Delete a UFW Rule = sudo ufw delete allow/deny port# To Allow Access to All Ports from a Specific IP Address = sudo ufw allow from IP Address To Allow Access to a Specific Port from a Specific IP Address = sudo ufw allow from IP Address to any port port# Final Thoughts Drivers Should Work Out of the Box... Wireless Networking is Its own Topic
Views: 460342 Eli the Computer Guy
Oracle Database 18c Installation on Oracle Linux 6.9
 
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In this video we are going to demonstrate how to install Oracle Database 18c in Oracle Linux 6.9. Oracle Database 18c is RDBMS software from Oracle Corporation with tons of features including Cloud Support. Oracle Database 18c installation in Oracle Linux 6 Platform is very easy. This video guides step by step installation of oracle 18c includes kernel parameters configuration, dependencies installation, oracle database installation, oracle listener configuration after installation and finally access oracle enterprise manager 18c in browser. Hardware Requirements : Enough Hard disk space, RAM and Swap Memory Software Requirements : Oracle Linux 6.4 and above with dependencies for oracle database 18c installed and Kernel Parameters configured. Important Note: To avoid Port already in use error I will be configuring hostname at the end of installation. Installation Class : Desktop class is choosen, which is easy to configure for desktops and laptops. Installation method : Offline, Oracle 18c zip file for linux downloaded and installed.
Views: 163 java frm
Роутер на Ubuntu 5 - проброс портов
 
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------------------------------↓Читайте описание↓---------------------------- http://saradmin.ru/?p=156 https://kubuntu.ru/nat-iptables Общее: 0. Добро пожаловать на YouTube канал проекта [Sonikelf's Project's] и сайта "Заметки Сис.Админа": 0.1 Раздел канала на форуме - https://sonikelf.ru/forum/forumdisplay.php?f=93 - вопросы, жалобы и предложения направлять сюда 0.2 Обратная связь - https://sonikelf.ru/forma-svyazi/ Наши ресурсы: 1. https://sonikelf.ru - авторские статьи в сфере IT (от руководителя и команды) 2. https://sonikelf.su - наши услуги (и не только) 3. https://sonikelf.ru/category/news/ - новости проекта и сайта 4. https://sonikelf.ru/forum/ - наш форум бесплатной компьютерной помощи 5. https://sonikelf.ru/category/blog/ - личный блог автора Помощь: 6. Музыкальное оформление канала - Risha Manis - https://www.youtube.com/channel/UCkX5WcbCI6KF_DLjMSM-Lmg ВАЖНО: 7. Прежде чем писать - ознакомьтесь с правилами - https://sonikelf.ru/forum/forumdisplay.php?f=102 Наша партнерская программа - https://youpartnerwsp.com/join?37095 Если хотите помочь проекту, то просто отключите блокировщик рекламы. Спасибо. ПОДПИСЫВАЙТЕСЬ, СМОТРИТЕ, КОММЕНТИРУЙТЕ! ;)
18-Linux Network Configuration ( Firewall configuration with iptables ) By IT Training and Tutorials
 
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iptables is a user-space application program that allows a system administrator to configure the tables[2] provided by the Linux kernel firewall (implemented as different Netfilter modules) and the chains and rules it stores. Different kernel modules and programs are currently used for different protocols; iptables applies to IPv4, ip6tables to IPv6, arptables to ARP, and ebtables to Ethernet frames. ► Documantation : http://cut-urls.com/RNbHj6
how to launch any graphical application on linux or X11 forwarding or Xming launch
 
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This video is about how to use Graphical application in Linux server environment. And this video will cover the basic concept of X11 forwarding, Xming server, DISPLAY variable in Linux and Graphical application on Linux. So to get the Graphical access to any GUI based application we need to follow below listed steps: 1. While logging into the server, Enable the X11 forwarding in Putty Setting. 2. After Login into the Linux machine you need run X11 forwarding server which is "xming" on window machine, which you are using to get access to the Linux server. 3. The xming can be downloaded from google and very easy to install. To launch Xming just click on "Xming Launch" icon and provide the port number where you want to run the xming server and finish the setup. 4. Once Xming is successfully launched on window machine. Just go to the Linux server and set the DISPLAY environment variable using the command "export DISPLAY=Window machine IP : Port of Xming server" i.e. "export DISPLAY=10.66.12.249:7.0" (Refer video for more clarity). 5. You can launch any Graphical application now. Test using "xclock" command. Also check the IPTABLES & SELINUX status at your Linux machine, both should be turned off. We are focusing on the basic problems, which we are facing during the installation or implementation of any application and due to unavailability of related content, it took large amount of time. Hope this kind of video will help you and you will not lose your continuity during the activity. Will come with more videos soon.
Views: 19963 OpenGyanHouse
iptables LINUX 防火牆基礎教學 中文講解 3/3
 
23:05
簡介防火牆的基礎觀念,table/CHAIN/rules/TARGET 的基本操作
Oracle 12.1.0.2 works with firewall on Oracle Linux 7
 
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Most Oracle 12c setting up disabled firewall. But we really need firewall to run most of times. This video shows that there is no problem for Oracle 12.1.0.2 to run with firewalld turned on. You can pause the video to see which ports and services are turned on in order to make the Oracle 12c works with firewall on. I did not turn on SELinux though. If you test it out for SELinux, please let me know.
Views: 604 Pccom Frank
How to enable iptables (PBX Security)
 
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How to secure your PBX with the use of IP Tables. For more information visit http://ipcomms.net/support/sample-device-configs So if you have any questions regarding trunk configuration, or any other topic and would like to have them answered, let us know. Facebook - https://www.facebook.com/ipcomms
How to Configure FirewallD in RHEL Linux 6, CentOS 7 and Fedora 23/22/21
 
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Hello Everyone, In this tutorial, Let us Install & Configure FirewallD on CentOS Linux Server 7(Core) - 64bit You Can also Configure in Redhat 7, Fedora Server, Oracle Linux, Cloud Linux. Installing Firewalld Package Step1 :- yum install firewalld –y Step2 :- systemctl status iptables # systemctl stop iptables # systemctl mask iptables Discussing Firewalld Components Step3 :- firewall-cmd --get-zones Step4 :- firewall-cmd --get-default-zone Step5 :- firewall-cmd --list-all-zones Setting Default Zone Step9 :- firewall-cmd --set-default-zone=internal Step7 :- firewall-cmd --get-default-zone Step8 :- firewall-cmd --get-zone-of-interface=enp0s3 Step9 :- firewall-cmd --get-icmptypes Creating Own Services in Firewalld Step10 :- firewall-cmd --get-services Step11 :- cd /usr/lib/firewalld/services/ Step12 :- cat nfs.xml Step13 :- cd /etc/firewalld/services/ Step14 :- cp /usr/lib/firewalld/services/ssh.xml /etc/firewalld/services/ Step15 :- cd /etc/firewalld/services/ Step16 :- ls –l Step16 :- (mv ssh.xml rtmp.xml) Step17 :- firewall-cmd --reload Step18 :- firewall-cmd --get-services Assigning Services to Zones Step19 :- firewall-cmd --state Step20 :- firewall-cmd --get-active-zones Step21 :- /etc/firewalld/firewalld.conf -(file as DefaultZone=public) Step22 :- firewall-cmd --get-service Adding Services to Zones Step23 :- firewall-cmd --add-service=rtmp Step24 :- firewall-cmd --zone=public --remove-service=rtmp Step25 :- firewall-cmd --add-service=rtmp --permanent Step26 :- firewall-cmd --reload Step27 :- firewall-cmd --permanent --add-source=192.168.0.0/24 Step28 :- firewall-cmd --permanent --add-port=1935/tcp Step29 :- firewall-cmd --reload Step30 :- firewall-cmd --list-all Adding Rich Rules for Network Range Step31 :- firewall-cmd --add-rich-rule 'rule family="ipv4" source address="192.168.0.0/24" service name="http" accept' Step32 :- firewall-cmd --add-rich-rule 'rule family="ipv4" source address="192.168.0.0/24" service name="http" accept' --permanent Step33 :- firewall-cmd --add-rich-rule 'rule family="ipv4" source address="192.168.0.0/24" service name="https" accept' Step34 :- firewall-cmd --add-rich-rule 'rule family="ipv4" source address="192.168.0.0/24" service name="https" accept' --permanent Step35 :- firewall-cmd --add-rich-rule 'rule family="ipv4" source address="192.168.0.0/24" service name="vnc-server" accept' Step36 :- firewall-cmd --add-rich-rule 'rule family="ipv4" source address="192.168.0.0/24" service name="vnc-server" accept' --permanent Step37 :- firewall-cmd --add-rich-rule 'rule family="ipv4" source address="192.168.0.0/24" service name="postgresql" accept' Step38 :- firewall-cmd --add-rich-rule 'rule family="ipv4" source address="192.168.0.0/24" service name="postgresql" accept' --permanent Step39 :- firewall-cmd –reload Step40 :- firewall-cmd --list-all Step41 :- man firewalld NOTE :- For Any Clarification Please Below Comment, Like and Share  us  and  help us to spread. ####--------------------------------------------------------------------------------------#### Subscribe :- http://www.youtube.com/user/itcloudnet?sub_confirmation=1 Website :- http://www.cloudnetwork.in Facebook :- http://facebook.com/itCloudNetwork/ Twitter :- http://twitter.com/itcloudnet Pinterset :- http://pinterset.com/itcloudnet LinkedIn :- http://in.linkedin.com/pub/itcloudnet Google+ :- https://plus.google.com/u/0/107923552480070716949/posts Skype Id :- cloud.network1 E-Mail Id :- [email protected] ####----------------------------------------------------------------------------------------####                          Thanking You Hope U Like it........
Views: 7203 Cloud Network
Витая пара #291 — неожиданный путь в  iphone , бесчеловечный linux и лютый интерпрайс.
 
01:39:35
Трансляция записи 291-го выпуска подкаста Витая пара В этом выпуске: - взлом #iPhone одной строкой; - #PeerTube от #разрабов #Blender для тех, кого забанили на #YouTube; - обновление #Linux от #Oracle теперь с поддержкой #ARM; - #NetBeans передан в фонд #Apache; - #iptables не нужен, #Netfilter - наше всё! - #OpenSwitch 2.3 - суровый Linux для суровых коммутаторов; - #нейронка от #Nvidia замедляет #видео. #Качественно, #долго, #красиво. Чат Hangouts: https://hangouts.google.com/group/J5FTi1IS6SlQkc1b2 Чат Telegram: https://t.me/tpair Группа VK: https://vk.com/tpair
Oracle Database 18c Installation on Redhat Enterprise Linux 6.9
 
33:46
In this video we are going to demonstrate how to install Oracle Database 18c in Redhat Enterprise Linux 6.9. Oracle Database 18c is RDBMS software from Oracle Corporation with tons of features including Cloud Support. Oracle Database 18c installation in RHEL 6 Platform is very easy. This video guides step by step installation of oracle 18c includes kernel parameters configuration, dependencies installation, oracle database installation, oracle listener configuration after installation and finally access oracle enterprise manager 18c in browser. Hardware Requirements : Enough Hard disk space, RAM and Swap Memory Software Requirements : Redhat Enterprise Linux 6.4 and above with dependencies for oracle database 18c installed and Kernel Parameters configured. Important Note: To avoid Port already in use error I will be configuring hostname at the end of installation. Installation Class : Desktop class is choosen, which is easy to configure for desktops and laptops. Installation method : Offline, Oracle 18c zip file for linux downloaded and installed.
Views: 129 java frm
SoftLayer - Tutorial Twenty - Part 3 - Linux Security with Iptables
 
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In this part of the tutorial 20 series we will cover building our first iptables script to enable a total lockdown of our Linux server.
Views: 235 Eamonn Killian
🐧 Servidor Linux - Instalação do MySQL Oracle no Debian9
 
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Inscreva-se✔️ Curta✔️ Comente✔️ Compartilhe✔️ Nesta aula nós vamos aprender a instalar o MySQL da Oracle no Debian. Este banco de dados pode ser usado em uma rede local ou em um servidor WEB. 🎯 Acesso ao curso: http://aulaead.com/ 🌎 Professor José de Assis Blog: http://www.professorjosedeassis.com.br Facebook: https://www.facebook.com/professorjosedeassis Twitter: https://twitter.com/joseassis Google+: https://plus.google.com/+RoboticapraticaBr Github: https://github.com/professorjosedeassis Linkedin: https://br.linkedin.com/in/professorjosedeassis SlideShare: http://pt.slideshare.net/josedeassisfilho #MySQL, #Oracle, #Debian9
Disable SELinux on Oracle Linux 7
 
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This video demonstrates how you can disable SELinux on Oracle Linux 7. Although this is Oracle Linux, the same steps will also apply for Red Hat Linux. SELinux has three different modes: Enforcing, Permissive, and Disabled. In this video you will learn what the different modes mean and how to change them.
Views: 226 Gerald on IT
Install CentOS 7 Minimall  with apache and mysql percona on Oracle Virtualbox
 
20:24
install Centos 7 Minimall on Virtualbox 1. new -- name -- Linux -- Red Hat (64bit) 2. Memory size 2gb 3. create a virtual hard drive now -- VMDK -- Fixed Size -- 8gb 4. setting network -- bridge 5. setting storage -- ide -- centos7.iso 6. Change adapter Setting in Windows -- host only network adapter -- optain an ip address (DHCP) 7. run and install centos 7 8. Remote centos7 via Putty ---------------------------------------- Install basic tools 1. yum -y install net-tools 2. yum -y provides ifconfig 4. yum -y install ntp 5. chkconfig ntpd on 6. ntpdate pool.ntp.org 7. service ntpd start ---------------------------------------- config Firewal and Port 8. yum -y install iptables-services 9. vi /etc/sysconfig/iptables - press i for edit Add Port for open : 22 sftp, 80 http, 8080 tomcat, 3306 mysql -A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 3306 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 8080 -j ACCEPT - press esc exit edit - press :wq! and press enter (write quite) 10. chkconfig iptables on 11. service iptables restart ---------------------------------------- Install Mysql percona 12. yum -y install wget 13. yum -y install http://www.percona.com/downloads/percona-release/redhat/0.1-4/percona-release-0.1-4.noarch.rpm 14. yum -y install Percona-Server-server-57 15. chkconfig mysqld on 16. service mysqld restart ---------------------------------------- config Mysql for Remote connection 17. Command get Defualt Password cat /var/log/mysqld.log |grep generated 18. mysql_secure_installation - press enter 19. mysql -u root -p - type password text 20. this step type % for Connect from All computer GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '[email protected]' WITH GRANT OPTION; FLUSH PRIVILEGES; 21. exit ---------------------------------------- Install Apache 22. yum -y install php 23. yum -y install php-mysqlnd php-mbstring 24. chkconfig httpd on 25. service httpd restart -------------------------------------- Config read write apache web 26. chown -R apache.apache /var/www/html/* 27. chmod -R 755 /var/www/html/* 28. chcon -R -t httpd_sys_content_t /var/www/html/* 29. chcon -R -t httpd_sys_rw_content_t /var/www/html/* --------------------------------------- Static IP 1. vi /etc/sysconfig/network-scripts/ifcfg-enp0s3 2. Example TYPE="Ethernet" BOOTPROTO=none IPADDR=192.168.9.188 NETMASK=255.255.252.0 GATEWAY=192.168.11.254 DNS1=202.6.107.35 DNS3=8.8.4.4 DEFROUTE="yes" PEERDNS="yes" PEERROUTES="yes" IPV4_FAILURE_FATAL="no" IPV6INIT="yes" IPV6_AUTOCONF="yes" IPV6_DEFROUTE="yes" IPV6_PEERDNS="yes" IPV6_PEERROUTES="yes" IPV6_FAILURE_FATAL="no" NAME="enp0s3" UUID="d1a278e2-90fb-447d-a46a-03e3efff218c" DEVICE="enp0s3" ONBOOT="yes" 3. esc :wq! enter 4. systemctl restart network -------------------------------------- Command find Service rpm -qa | grep Percona
IPTABLES (SUSE-VMWare WorkStation)
 
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Tutorial iptables (firewall) en vmware workstation con suse - linux . Virtualizacion de Open suse 12.2
Views: 1666 gessabel patricio
Firewall iptables - Algumas regras de uso geral I (ping, mac, ssh, IP) - vídeo 03
 
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Firewall iptables - Algumas regras de uso geral I (ping, mac, ssh, IP) - vídeo 03 Neste terceiro vídeo da série sobre firewall iptables no Linux aprenderemos a configurar uma regra padrão de bloqueiod e pacoes na cadeia INPUT, e a liberar portas de serviços como SSH, Servidor Web, PING, e também a liberar o acesso de outras máquinas por IP ou MAC address. Por Fábio dos Reis Bóson Treinamentos: http://www.bosontreinamentos.com.br Facebook: https://www.facebook.com/bosontreinamentos/ Pinterest: https://br.pinterest.com/bosontreina/ Twitter: https://twitter.com/bosontreina Instagram: bosontreinamentos Outros projetos do autor: Planeta Unix: http://www.planetaunix.com.br Diário do Naturalista: http://www.diariodonaturalista.com.br
Views: 14256 Bóson Treinamentos
Part II -Oracle Database 12c CentOS/RHEL/Oracle Linux 6 Installation
 
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This is part II of my presentation on how to Install Oracle Database 12c on CentOS/RHEL/Oracle Linux 6, starting version 6.5. The topics covered include Oracle Database 12c Installation, Configuration and Testing. Accessing the database from SQL Plus and Oracle Enterprise Manager, Database Express 12c.
Views: 537 Ahmed El Koutbia
🐧 Curso Primeiros Passos com Servidor Linux - Introdução ao iptables (netfilter)
 
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Inscreva-se✔️ Curta✔️ Comente✔️ Compartilhe✔️ Nesta aula você vai aprender como funciona o iptables. 🎯 Acesso ao curso: http://aulaead.com/ 🌎 Professor José de Assis Blog: http://www.professorjosedeassis.com.br Facebook: https://www.facebook.com/professorjosedeassis Twitter: https://twitter.com/joseassis Google+: https://plus.google.com/+RoboticapraticaBr Github: https://github.com/professorjosedeassis Linkedin: https://br.linkedin.com/in/professorjosedeassis SlideShare: http://pt.slideshare.net/josedeassisfilho #Linux, #iptables, #netfilter
Oracle 12c installation on Linux
 
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How to install and configure Oracle 12c database on Linux. A step by step video tutorial Link to installation guide: https://www.dropbox.com/sh/hduiqaluohvdp4v/AADzKoODWrxY1awC4ahr3lbPa?dl=0
Views: 333 Daniel Sam-Egbede
Netfilter and iptables
 
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Netfilter is a framework provided by the Linux Kernel that allows various networking-related operations to be implemented in the form of customized handlers.iptables is a user-space application program that allows a system administrator to configure the tables provided by the Linux Kernel firewall (implemented as different Netfilter modules) and the chains and rules it stores​. Many systems use iptables/netfilter, Linux's native packet filtering/mangling framework since Linux 2.4, be it home routers or sophisticated cloud network stacks. In this session, we will talk about the Netfilter framework and its facilities, explain how basic filtering and mangling use-cases are implemented using iptables, and introduce some less common but powerful extensions of iptables. About the speaker: Shmulik Ladkani, Chief Architect at Nsof Networks. Long time network veteran and kernel geek. Shmulik started his career at Jungo (acquired by NDS/Cisco) implementing residential gateway software, focusing on embedded Linux, Linux kernel, networking and hardware/software integration. Some billions of forwarded packets later, Shmulik left his position as Jungo's lead architect and joined Ravello Systems (acquired by Oracle) as tech lead, developing a virtual data center as a cloud-based service, focusing around virtualization systems, network virtualization and SDN.​ Recently he co-founded Nsof Networks, where he's been busy architecting network infrastructure as a cloud-based service, gazing at internet routes in astonishment, and playing the chkuku.
Views: 748 KernelTLV
Oracle 11g R2 database installation
 
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Demo of how to install Oracle 11g r2 database software on a Linux platform
Views: 179 Tamal Chatterjee
Disabling iptables firewall & SELinux
 
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This video shows how to disable iptables firewall & SELinux on CentOS 5. Q. Why? A. To make troubleshooting a lot easier during deployment so you don't want to be embarassed when cought blaming the network engineer but instead it was you own making.
Views: 1381 Umarzuki Mochlis
Start / stop oracle service in linux from android phone.
 
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How to start and stop oracle service in linux os from android phone. An online training video to demonstrate. An android screen monitor is used to show android mobile activities and centos6.5 Linux OS is in VMWare workstation 10.0. All you need to do is install oe free apk i your android mobile "Simple Telnet Client" : https://play.google.com/store/apps/details?id=com.telnet&hl=en It's a free apps for android.
Views: 140 Subhroneel Ganguly
Tutoriel en IPTABLES configuration fait par DOUH Soukaina
 
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la terminologie + les paramètres par défaut + la configuration pour le blocage/la permission à des adresses IP ou des protocoles! Tous ça dans ce tutoriel! j'espère que vous l'aimez!
Views: 3883 Douh Soukaina
How to disable Firewall and SELinux in CentOS 6
 
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To disable Firewall /etc/init.d/iptables stop chkconfig iptables off chkconfig ip6tables off To disable SELinux nano /etc/selinux/config edit SELINUX=disabled Save and exit reboot
Views: 4994 Linux Server
10 Useful Linux Interview Questions and Answers
 
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“Interviewing for a job can be nerve-racking, especially when it's your first interview,” says Michele Casey, director of product management for Oracle Linux. “Just be well-prepared. That's the best thing you can do.”
Views: 1003 Alum
An important video on Red HAt Enterprise Linux 5 on Rh-253
 
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In this video the trainer is trying to explain the concept of "iptables" which is a basically kernel firewall & protect it from a anonymous station to access it.
Views: 10858 Rabishankar Biswal
Configuración servidor SAMBA en Oracle linux 6 Español
 
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CONFIGURACIÓN SAMBA EN SERVIDOR Instalar: yum install -y samba (instalamos) service smb start (arrancamos el servicio) chkconfig smb on (para que arranque el servicio a reiniciar) lokkit -s samba (habilitar los puertos samba en iptables) Configurar en modo Stand-alone: useradd user1 (añadimos un usuario) chsh -s /sbin/nologin user01 (le deshabilitamos la shell) nano /etc/samba/smb.conf {Workgroup=GROUPA Security=user Netbios Name=SMB_XULIN } { [tmp] path=/tmp writable=yes guest ok=yes } testparm (chequea la configuración Samba) service smb restart (reiniciamos servicio) smbpasswd -a user1 (creamos un usuario para windows) EN CLIENTE LINUX yum install -y samba-client smbclient -L //192.0.2.12 -U user1 -W GROUPA (probamos la conexión como user1) smbclient -L //192.0.2.12 -U guest -W GROUPA (probamos la conexión como guest) smbclient //192.0.2.12/tmp -u user01 (para acceder al directorio) mount -t cifs -o ro,user=user01 //192.0.2.12 /mnt (para montar la unidad) EN CLIENTE WINDOWS \\192.0.2.12\tmp
Views: 1021 santiago bermejo ruiz
SOURCE Boston 2008: Advanced Linux Firewalls
 
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Speaker: Michael Rash - Enterasys Networks, Inc. This talk will concentrate on advanced topics in Linux firewall infrastructures including Single Packet Authorization, application content inspection, and iptables log visualization. The latest techniques employed by the 'psad', 'fwsnort', and 'fwknop' projects will be presented, and a new software release of one of these projects will be made at the conference. For more information visit: http://bit.ly/SOURCE_Boston_2008_information To download the video visit: http://bit.ly/SOURCE_Boston_2008_videos
Views: 1295 Christiaan008
Configure iptables on linux
 
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Contains instructions on configuring iptables on linux. Explains how to block a specific host through the linux firewall rules. The firewall rules are configured using iptables. Dhyan Networks - http://www.dhyan.com

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