What is JavaScript?

JavaScript (also known as JS) is a high level, dynamic, prototype-based scripting language which is used as one of the three core technologies for World Wide Web. It is used to make webpages interactive and provide even online games. It was so popular that all modern web browsers support it due to in-built JavaScript engine. Initially it was used in client-side (Front-end) in web browsers but now it is used in server-side programs also such as web servers and databases. With recent developments, JS is used in non-web programs also such as word processors and PDF. JavaScript has very few similarities with Java such as language name and syntax but JS was influenced by programming languages such as Self and Scheme.

Why to enrol in JavaScript training at Trishana technologies, Bangalore?

Trishana technologies offers you the most comprehensive, practical and job-oriented JavaScript course. Our JS course will help you build a strong foundation in web designing along with the excellent coding skills in JS. Our syllabus includes the fundamentals of web designing, basics of HTML and CSS, full theoretical knowledge about JS and real-life practical sessions on all the concepts used in JS. Our state-of-the-art facilities are well complemented with most skilful trainers and top-notch study materials. All our trainers have vast experience and work profile in JS and have rich teaching experience. Our study materials are prepared meticulously by experts for easier and clearer understanding of our students. We also offer best-in-class placement support with off-campus, direct interview, mock tests and interview study materials. You can confirm this by going through our 100% placement assistance.

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Installation covers most flavors of Linux distribution such as Red hat Linux and Fedora Linux and Suse Linux

  • First Stage: Starting the Installation
  • First Stage: Boot Media
  • Accessing the Installer
  • First Stage: Installation Method
  • Network Installation Server
  • Second Stage: Installation Overview
  • Configuring File Systems
  • Advanced Partitioning
  • Package Selection
  • First Boot: Post-Install Configuration
  • Starting a Kickstart Installation
  • Anatomy of a Kickstart File

Command line:

  • Introduction to Bash Shell
  • Basic Commands (ls,cd,tail,cat,mkdir)
  • Commands to work with file(mv,cp,rm)
  • Text editor (vim)
  • Stream text editor (grep, sed, and awk)
  • Compression Tar,gzip and bzip2
  • Easily accessible tools in linux.

System Initialization

  • Boot Sequence Overview
  • Troubleshooting boot issues
  • What is GRUB and grub.conf
  • Starting the Boot Process: GRUB
  • Kernel Initialization
  • init Initialization (init 0,1,2,3,4,5)
  • Run Levels
  • /etc/rc.d/rc.sysinit
  • /etc/rc.d/rc
  • System V run levels
  • /etc/rc.d/rc.local
  • Controlling Services(service,init.d,chkconfig)

Booting and run levels

  • The boot process: from BIOS to kernel then to user space
  • Setting kernel parameters
  • Run levels and init scripts
  • Configuring services to run at boot
  • Securing single-user mode (su login)
  • Shutting down and rebooting the system

Package Management - Working with packages

  • RPM Package Manager
  • Installing and Removing Software
  • Updating a Kernel RPM
  • rpm Queries
  • rpm Verification
  • About yum
  • Using yum
  • Searching packages/files
  • Configuring Additional Repositories
  • Creating a private repository
  • Red Hat Network
  • Red Hat Network Server
  • Entitlements
  • Red Hat Network Client

Kernel Services - Configuring the kernel

  • The Linux Kernel
  • Kernel Images and Variants
  • Kernel Modules
  • Kernel Module Utilities
  • Managing the initrd Image
  • Accessing Drivers Through /dev
  • Device Node Examples
  • Managing /dev With udev
  • Adding Files Under /dev
  • Kernel Configuration With /proc
  • /proc Examples
  • sysctl : Persistent Kernel Configuration
  • Exploring Hardware Devices (hwinfo)
  • Monitoring Processes and Resources(kill,ps,pstree,top)

System Services – Linux System Services

  • Network Time Protocol
  • System Logging
  • syslog Configuration
  • XOrg: The X11 Server
  • XOrg Server Configuration
  • XOrg in runlevel 3
  • XOrg in runlevel 5
  • Remote X Sessions
  • SSH: Secure Shell
  • VNC: Virtual Network Computing
  • cron
  • Controlling Access to cron
  • System crontab Files
  • Daily Cron Jobs
  • The anacron System
  • CUPS

User Administration

  • Adding a New User Account
  • User Private Groups
  • Modifying / Deleting User Accounts
  • Group Administration
  • Password Aging Policies
  • Switching Accounts
  • sudo
  • Network Users
  • Authentication Configuration
  • Example: NIS Configuration
  • Example: LDAP Configuration
  • SUID and SGID Executables
  • SGID Directories
  • The Sticky Bit
  • Default File Permissions
  • Access Control Lists (ACLs)
  • SELinux
  • SELinux: Targeted Policy
  • SELinux: Management

File system Management

  • Adding New File systems to the File system Tree
  • Device Recognition
  • Disk Partitioning
  • Managing Partitions
  • Making Filesystems
  • Difference between ext3 and ext4
  • Filesystem Labels
  • tune2fs
  • Mount Points and /etc/fstab
  • Mounting Filesystems with mount
  • Unmounting Filesystems
  • mount By Example
  • Handling Swap Files and Partitions
  • Mounting NFS Filesystems
  • Automounter
  • Direct Maps
  • gnome-mount
  • Checking available free space and space used by files (df,du)
  • Checking and correcting the integrity of filesystems (fsck)

File system security

  • Users and groups
  • The ‘root’ user or superuser
  • Changing file ownership (chown)
  • Changing file group ownership (chgrp)
  • Permissions on files
  • Permissions on directories
  • How permissions are applied
  • Changing permissions (chmod)

Processes and jobs

  • What processes are ?
  • The properties of a process
  • Parent processes and child processes
  • Killing processes and sending signals to a process (kill, killall, xkill)

Advanced File system Management

  • Configuring the Quota System
  • Setting Quotas for Users
  • Reporting Quota Status
  • What is Software RAID?
  • Software RAID Configuration
  • Software RAID Testing and Recovery
  • What is Logical Volume Manager (LVM)?
  • Creating Logical Volumes
  • Resizing Logical Volumes
  • Logical Volume Manager Snapshots
  • Using LVM Snapshots
  • Archiving tools: tar
  • Archiving Tools: dump/restore
  • Archiving Tools: rsync:

Network Interfaces

  • Driver Selection
  • Speed and Duplex Settings
  • IPv4 Addresses
  • Dynamic IPv4 Configuration
  • Static IPv4 Configuration
  • Device Aliases
  • Routing Table
  • Default Gateway
  • Configuring Routes
  • Verify IP Connectivity
  • Defining the Local Host Name
  • Local Resolver
  • Remote Resolvers
  • Verify DNS Connectivity
  • Network Configuration Utilities
  • Transparent Dynamic Configuration
  • Implementing IPv6
  • IPv6: Dynamic Interface Configuration
  • IPv6: Static Interface Configuration
  • IPv6: Routing Configuration
  • New and Modified Utilities

Basic networking configuration

  • Configure a network device to connect to a local network
  • Configure a network device to connect to a wide-area network
  • Communicate between subnets within a single network
  • Configure a network device to implement authentication
  • Configuring a multi- homed network device
  • Resolving networking and communication problems
  • /sbin/route
  • /sbin/ifconfig
  • /bin/netstat
  • /bin/ping
  • /sbin/arp
  • /usr/sbin/arpwatch
  • /usr/sbin/tcpdump
  • /usr/sbin/lsof
  • /usr/bin/nc

Troubleshooting network issues

  • ifconfig
  • route
  • netstat
  • /etc/network and /etc/sysconfig/network - scripts/
  • System log files
  • ping
  • /etc/resolv.conf
  • /etc/hosts
  • /etc/hosts.allow and /etc/hosts.deny
  • /etc/hostname and /etc/HOSTNAME
  • traceroute
  • nslookup and dig
  • dmesg

Organizing Networked Systems

  • Host Name Resolution
  • DNS-Specific Resolvers
  • Trace a DNS Query with dig
  • Exploring DNS with host
  • Service Profile: DNS
  • Getting Started with BIND
  • bind-chroot Package
  • caching-nameserver Package

Network File Sharing Services

  • NFS server and NFS Client
  • NFS share for group collaboration


  • Samba server and samba client connections
  • Samba share for group collaboration

Managing sendmail

  • E-mail aliases
  • Mail quotas
  • Virtual mail domains
  • Configuring internal mail relays
  • Monitoring SMTP servers
  • /etc/aliases
  • sendmail.cw

DNS - BIND configuration

  • Configure BIND to function as a caching-only DNS server
  • Configure a caching-only name server to forward DNS queries
  • Format, and reload the DNS by using kill or ndc
  • Configuring DNS logging
  • Configuring BIND options
  • Configuring directory location for zone files
  • /etc/named.conf
  • /usr/sbin/ndc
  • /usr/sbin/named-bootconf
  • kill

Web Proxy - Squid Configuration

  • Install a proxy server using Squid
  • Configure a proxy server using Squid
  • Implementing access policies
  • Setting up authentication
  • Utilizing memory usage
  • Squid.conf
  • acl
  • http_access

DHCP configuration

  • What is DHCP?
  • Static hosts
  • Dynamic hosts
  • dhcpd.conf
  • dhcpd.leases

Web server - Apache Configuration

  • Apache Overview
  • Apache Server Configuration
  • Virtual Hosts
  • Apache Access Configuration
  • Deploy a basic CGI application
  • Configure group-managed content
  • Configure private directories
  • Monitoring Apache load and performance
  • Restricting client user access
  • Configuring mod_php and PHP support
  • Setting up client user authentication
  • Configuring Apache server options
  • access. log
  • .htaccess
  • httpd.conf
  • htpasswd

Linux Security Administration

  • Auditing source code
  • Securing SSH
  • Getting security alerts
  • Open mail relays
  • Installing Intrusion Detection Systems
  • Port scanning with nmap
  • Firewall using IP Tables
  • Filter and NAT Rules
  • SMTP Overview and Implementations
  • Connections and Relays
  • Password Security and PAM
  • Security Considerations
  • Activating and Interfacing with SELinux
  • SELinux commands and Roles
  • Location & Access
  • Boot level security (GRUB)
  • Security need for TCP wrappers
  • /etc/inetd.conf
  • /etc/hosts.allow and /etc/hosts.deny
  • xinetd
  • Net filter Overview
  • Rules: General Considerations
  • Connection Tracking
  • Network Address Translation (NAT)
  • IP tables
  • /proc/sys/net/ipv4

Introduction to Shell Script

  • Different type of shell
  • Shell scrtip basics
  • Executing shell scripts.
  • Header,comments on script
  • Redirection
  • Vairables
  • Conditions
  • Loops
  • Eg: Backup script and scheduling the script


  • Configure a system as an iSCSI initiator that persistently mounts an iSCSI target

Career opportunities in Linux domain:

  • System Administrator - Linux
  • Technical Support Analyst - Linux
  • Linux Device Driver Engineer
  • Linux kernel Developer
  • Embedded Engineer - Linux/UNIX Kernel

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