Installation of word press on linux. Step yum update
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Configure Apache with index,html and index.php Step1: Install Apache Step2:Check status Step 3 Check on browser. Step4: Now set up Apache virtual host on Ubuntu keenable@isgec:~$ sudo mkdir -p /var/www/example.com/public_html Step5 Edit index.html in public_html folder,with following config. =========================== <!DOCTYPE html> <html lang= "en" dir= "ltr" > <head> <meta charset= "utf-8" > <title>Welcome to example.com</title> </head> <body> <h1>Success! example.com home page!</h1> </body> </html> =========================== Step6:create virtual host keenable@isgec:/etc/apache2/sites-available$ sudo vim example.com.conf ============================ <VirtualHost *: 80 > ServerName example.com ServerAlias www.example.com ServerAdmin webmaster@example.com DocumentRoo
Create PPPOE(DSL) Connection on Linux I had faced lot of hurdle while setting pppoe connection on Ubuntu 18.4LTs. interesting thing is that not found any reliable link on google for that,here is step wise detail of setting dsl connection on Linux Prerequisites: ANI is my service provider Connection name is provide by ISP Username and password provided by ISP (ANI) IP and domain also provide by ISP Step 1create connection name: keenable@xxx:~$ nmcli con edit type pppoe con-name ANI Step2: Add user name. nmcli> set pppoe.username aa0003@elixir Step3:nmcli> set pppoe.password xxxxx step:Add service nmcli> set pppoe.servicename ANI Step4:set ip in network>ani>setting Step5: check the user name and other detail.and edit In ipv4 we can provide ip and domain which provided by isp
Colorful Linux Terminal I have created a script to send report on daily basis,but management want some of the line colorful , As always believe "zaroorat aijad ki maa hai" so I get tips of colorful terminal, following are the point. =================================== Color code in linux. Black 0 ; 30 Dark Gray 1 ; 30 Red 0 ; 31 Light Red 1 ; 31 Green 0 ; 32 Light Green 1 ; 32 Brown / Orange 0 ; 33 Yellow 1 ; 33 Blue 0 ; 34 Light Blue 1 ; 34 Purple 0 ; 35 Light Purple 1 ; 35 Cyan 0 ; 36 Light Cyan 1 ; 36 Light Gray 0 ; 37 White 1 ; 37 ==================================================== type of color sequence: 3/4 bit 8 bit 24 bit ==================== Modes: color-mode 0 reset 1; lighter than normal 2; darker than normal =============== text-mode 3; italic 4; underline 5; b
Docker Volume before going into docker volume lets clear docker file system first. The Docker File System A Docker image is a collection of read-only layers. When we launch a container from an image, Docker adds a read-write layer to the top of that stack of read-only layers. Docker calls this the "Union File System" . Any time a file is changed, Docker makes a copy of the file from the read-only layers up into the top read-write layer. This leaves the original (read-only) file unchanged. When a container is deleted, that top read-write layer is lost. This means that any changes made after the container was launched are now gone. ====================================== What is docker volume A Docker volume keep outside the container, on the host machine. From the container, the volume use like a folder which we can use to store and retrieve data. It is simply a mount point to a directory on the host. ====================================== Create docker volume Docker
How to Recover deleted files in Linux I had delete a folder from linux,but it was an important folder,so I try hard to recovered and failed,but never quit to R & D about the concept,after I found some tool, We will recover deleted file and folder with lsof,but it not recover those file and folder deleted with -r,after lot of R & D i found some tool,below are the tool for recovery. 1.Test-disk utility 2.extundelete 3.scalpel 4.autopsy and most reliable of all these is 5.Foremost we can use them with the help of google,
Cron Job in Linux I got very confused and got lot problem while running cron job,also not found proper structure on google so decide to writ my experience,below are step wise cron job. minute: * * * * * /etc/postfix/queuegraph-rrd.sh This script run every minute */5 * * * * /bin/bash /root/mailq.sh this script run every five minute #*/57 * * * * /bin/bash /root/iptables.sh this script run on 57 minute hour. 0 * * * * run at every hour 0 23 * * * /bin/bash /root/pflogsumm.sh this script run at 11 pm day 15 15 15 * * This will run at 3:15 on every 15 days 15 15 L * * This will run on 3:15 of every last day of month 10 0 1 * * /bin/bash /root/change_always_bcc.sh this script run at 12,10 am night 1st day of month month 15 15 15 11 * This will run on November,15 at 3:15 Day of week 15 15 * * 1-6 this will run from Monday to Saturday, at 3:15
Difference between IDE and Framework before differentiate IDE and Framework lets clear other concept first. Platform A Platform is a hardware and software on which s software is develop or build For example,Windows,Mac,Linux BSD,vmware etc Library A library refers to code that provides functions that we can call from our own code to deal with common tasks. API Application programming interface,it is an interface between server and a client This term refers to the “face” of the library, SDK This is a complete kit of software development tools for a specific platform,kit include Libraries, APIs, IDE, Documentation, etc.eg android development tool kit IDE it is an application which is used to developing, compiling and debugging applications. eg Eclipse, Visual Studio, and Intel Ii Framework A collection of different libraries and api which is reusable,it is a software or a tool eg, Hibernate, Struts and Spring
TCP Sockets TCP Socket is also called virtual port,are used in tcp and udp communication,hey are called 'virtual ports' because a single physical connector can serve multiple connections. Each side of a socket connection uses its own port number, which does not change during the life of that connection. IP ADDRESS + Port No = Socket
IP Tables Firewall in Linux IP Tables is a firewall that plays an essential role in network security for most Linux systems The packet filtering mechanism provided by iptables is organized into three different kinds of structures: tables, chains and targets ========>The default table is the filter table =======>The default policy is also a target. By default, all chains have a default policy of allowing packets. ======>A target decides the fate of a packet, such as allowing or rejecting it. =========================================== IP Table configuration tool: e.g., fwbuilder, bastille and ufw =================================== Ip table main file: /etc/sysconfig/iptables ==================================================== Tables There are three tables. Filter Rules to modify the packets This is the default and perhaps the most widely used table. It is used to make decisions about whether a packet should be allowed to reach its de