Monthly Archives: December 2016

How to configure telnet in redhat linux server

Hii guys today we will discuss about telnet. how can we configure telnet in RedHat Linux server. before we configure telnet we need to configure YUM server .becouse yum is helpfull telnet package installing so if you want to know how to configure yum. i have two methods. you just click here and look .how to configure yum  ./ how to configure yum in windows and access remotely. if we configure yum we will install telnet package very easy.

now i accept you configure yum in our system then you follow just simple step

Step1–before we install telnet package #yum install telnet*

[root@localhost ~]# yum install telnet*
Loaded plugins: rhnplugin, security
Repository 'a' is missing name in configuration, using id
This system is not registered with RHN.
RHN support will be disabled.
Setting up Install Process
Package 1:telnet-server-0.17-39.el5.i386 already installed and latest version
Resolving Dependencies
--> Running transaction check
---> Package telnet.i386 1:0.17-39.el5 set to be updated
--> Finished Dependency Resolution
Dependencies Resolved
================================================================================================================================================================================================================================
 Package                                               Arch                                                Version                                                       Repository                                        Size
================================================================================================================================================================================================================================
Installing:
 telnet                                                i386                                                1:0.17-39.el5                                                 a                                                 57 k
Transaction Summary
================================================================================================================================================================================================================================
Install      1 Package(s)
Update       0 Package(s)
Remove       0 Package(s)
Total download size: 57 k
Is this ok [y/N]: y
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing     : telnet                                                                                                                                                                                                   1/1
Installed:
  telnet.i386 1:0.17-39.el5
Complete!

After telnet installation, we go to just telnet configuration file through this commands

[root@localhost ~]# vim /etc/xinetd.d/telnet

[root@localhost ~]# vim /etc/xinetd.d/telnet
service telnet
{
        flags           = REUSE
        socket_type     = stream
        wait            = no
        user            = root
        server          = /usr/sbin/in.telnetd
        log_on_failure  += USERID
        disable         = no
}
~
~
~
~
:wq

Then we start telnet service [root@localhost ~]# service xineted restart

[root@localhost ~]# service xineted restart
[root@localhost ~]# chkconfig xinetd on

then we need any user account for telnet access so here we make the new user.

[root@localhost ~]# useradd vishnu1
[root@localhost ~]# passwd vishnu1
Changing password for user vishnu1.
New UNIX password:******
BAD PASSWORD: it is too short
Retype new UNIX password:******
passwd: all authentication tokens updated successfully.

then we  off our firewall

[root@localhost ~]# iptables -F
[root@localhost ~]# setenforce 0
setenforce: SELinux is disabled

now your telnet is ready we can access any remotely

thank you
by Vishnu Sharma

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How can we access redhat linux in windows through VNC

hello, guys today we will learn how can we access Linux in windows. it’s  a totally graphical presentation. like team viewer we will login in windows to Linux graphically. we will use  VNC Software  in windows. If u have real IP address you can also access remotely. Continue reading

How can we make HTTP Server in our windows machine

Hi, guys today we learn How can we make HTTP Server in our windows machine .its a very simple just following simple step. Before we need Everything Software just click and download.Here I am accept you download and install everything software .then go to everything and click just tools >option >HTTP >HTTP Service enable how to transfer file windows to linuxhow to transfer file windows to linux                                         You can also follow screen short                                                                            then we press WINDOWS+R  >RUM windows in type cmd then will look command prompt  we just type (ipconfig) then command prompt show out ip addresshow to transfer file windows to linuxthen open any browser in put your ip address                  HTTP server

Then you will look like this folder /directory in your browser .HTTP server  you can open any browser in .its also open in your smartphone or tablet and transfer your data without data cable but if u don’t, have real ip address then you can transfer data in single network like one wi-fi or LAN network.

how to solve subnetting Question ? for C class ip address

Hii guys today we will learn how to solve  subnetting question before .if you want to know more information about ip address an subnet mask so click on my link and visit about  IP address, subnet mask and its binary conversion

Continue reading

how to configure raid 5 in redhat linux server

Hii guys today we will discuss about RAId5 .RAID 5 is a method of storage management in linux server. In this article  we will learn how to configure RAID 5 in linux server  if u want to know what is RAID? and what is RAID 0 RAID1 so click on my link and visit What is raid 0 ? and how to Configur in redhat linux server What is raid 0 ? and how to Configur in redhat linux server

basically RADID 5 in required 3 heard disk if one is crashes then other disk will be take place automaticly .

raid 5

So lets go through the steps to configure raid level 5 in linux server

[root@localhost ~]# fdisk /dev/sda
The number of cylinders for this disk is set to 4177.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
   (e.g., DOS FDISK, OS/2 FDISK)
Command (m for help): m
Command action
   a   toggle a bootable flag
   b   edit bsd disklabel
   c   toggle the dos compatibility flag
   d   delete a partition
   l   list known partition types
   m   print this menu
   n   add a new partition
   o   create a new empty DOS partition table
   p   print the partition table
   q   quit without saving changes
   s   create a new empty Sun disklabel
   t   change a partition's system id
   u   change display/entry units
   v   verify the partition table
   w   write table to disk and exit
   x   extra functionality (experts only)
Command (m for help): p
Disk /dev/sda: 34.3 GB, 34359738368 bytes
255 heads, 63 sectors/track, 4177 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1        3315    26627706   83  Linux
/dev/sda2            3316        3697     3068415   82  Linux swap / Solaris
/dev/sda4            3698        4177     3855600    5  Extended
/dev/sda5            3698        3722      200781   fd  Linux raid autodetect
/dev/sda6            3723        3747      200781   fd  Linux raid autodetect
Command (m for help): n
Command action
   l   logical (5 or over)
   p   primary partition (1-4)
l
First cylinder (3748-4177, default 3748):
Using default value 3748
Last cylinder or +size or +sizeM or +sizeK (3748-4177, default 4177): +100M
Command (m for help): n
Command action
   l   logical (5 or over)
   p   primary partition (1-4)
l
First cylinder (3748-4177, default 3748):
Using default value 3748
Last cylinder or +size or +sizeM or +sizeK (3748-4177, default 4177): +100M
Command (m for help): n
Command action
   l   logical (5 or over)
   p   primary partition (1-4)
l
First cylinder (3761-4177, default 3761):
Using default value 3761
Last cylinder or +size or +sizeM or +sizeK (3761-4177, default 4177): +100M
Command (m for help): n
Command action
   l   logical (5 or over)
   p   primary partition (1-4)
l
First cylinder (3774-4177, default 3774):
Using default value 3774
Last cylinder or +size or +sizeM or +sizeK (3774-4177, default 4177): +100M
Command (m for help): p
Disk /dev/sda: 34.3 GB, 34359738368 bytes
255 heads, 63 sectors/track, 4177 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1        3315    26627706   83  Linux
/dev/sda2            3316        3697     3068415   82  Linux swap / Solaris
/dev/sda4            3698        4177     3855600    5  Extended
/dev/sda5            3698        3722      200781   fd  Linux raid autodetect
/dev/sda6            3723        3747      200781   fd  Linux raid autodetect
/dev/sda7            3748        3760      104391   83  Linux
/dev/sda8            3761        3773      104391   83  Linux
/dev/sda9            3774        3786      104391   83  Linux
Command (m for help): t
Partition number (1-9): 7
Hex code (type L to list codes): l
 0  Empty           1e  Hidden W95 FAT1 80  Old Minix       bf  Solaris
 1  FAT12           24  NEC DOS         81  Minix / old Lin c1  DRDOS/sec (FAT-
 2  XENIX root      39  Plan 9          82  Linux swap / So c4  DRDOS/sec (FAT-
 3  XENIX usr       3c  PartitionMagic  83  Linux           c6  DRDOS/sec (FAT-
 4  FAT16 <32M      40  Venix 80286     84  OS/2 hidden C:  c7  Syrinx
 5  Extended        41  PPC PReP Boot   85  Linux extended  da  Non-FS data
 6  FAT16           42  SFS             86  NTFS volume set db  CP/M / CTOS / .
 7  HPFS/NTFS       4d  QNX4.x          87  NTFS volume set de  Dell Utility
 8  AIX             4e  QNX4.x 2nd part 88  Linux plaintext df  BootIt
 9  AIX bootable    4f  QNX4.x 3rd part 8e  Linux LVM       e1  DOS access
 a  OS/2 Boot Manag 50  OnTrack DM      93  Amoeba          e3  DOS R/O
 b  W95 FAT32       51  OnTrack DM6 Aux 94  Amoeba BBT      e4  SpeedStor
 c  W95 FAT32 (LBA) 52  CP/M            9f  BSD/OS          eb  BeOS fs
 e  W95 FAT16 (LBA) 53  OnTrack DM6 Aux a0  IBM Thinkpad hi ee  EFI GPT
 f  W95 Ext'd (LBA) 54  OnTrackDM6      a5  FreeBSD         ef  EFI (FAT-12/16/
10  OPUS            55  EZ-Drive        a6  OpenBSD         f0  Linux/PA-RISC b
11  Hidden FAT12    56  Golden Bow      a7  NeXTSTEP        f1  SpeedStor
12  Compaq diagnost 5c  Priam Edisk     a8  Darwin UFS      f4  SpeedStor
14  Hidden FAT16 <3 61  SpeedStor       a9  NetBSD          f2  DOS secondary
16  Hidden FAT16    63  GNU HURD or Sys ab  Darwin boot     fb  VMware VMFS
17  Hidden HPFS/NTF 64  Novell Netware  b7  BSDI fs         fc  VMware VMKCORE
18  AST SmartSleep  65  Novell Netware  b8  BSDI swap       fd  Linux raid auto
1b  Hidden W95 FAT3 70  DiskSecure Mult bb  Boot Wizard hid fe  LANstep
1c  Hidden W95 FAT3 75  PC/IX           be  Solaris boot    ff  BBT
Hex code (type L to list codes): fd
Changed system type of partition 7 to fd (Linux raid autodetect)
Command (m for help): t
Partition number (1-9): 8
Hex code (type L to list codes): fd
Changed system type of partition 8 to fd (Linux raid autodetect)
Command (m for help): t
Partition number (1-9): 9
Hex code (type L to list codes): fd
Changed system type of partition 9 to fd (Linux raid autodetect)
Command (m for help): p
Disk /dev/sda: 34.3 GB, 34359738368 bytes
255 heads, 63 sectors/track, 4177 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1        3315    26627706   83  Linux
/dev/sda2            3316        3697     3068415   82  Linux swap / Solaris
/dev/sda4            3698        4177     3855600    5  Extended
/dev/sda5            3698        3722      200781   fd  Linux raid autodetect
/dev/sda6            3723        3747      200781   fd  Linux raid autodetect
/dev/sda7            3748        3760      104391   fd  Linux raid autodetect
/dev/sda8            3761        3773      104391   fd  Linux raid autodetect
/dev/sda9            3774        3786      104391   fd  Linux raid autodetect
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
WARNING: Re-reading the partition table failed with error 16: Device or resource busy.
The kernel still uses the old table.
The new table will be used at the next reboot.
Syncing disks.
[root@localhost ~]# partprobe /dev/sda
[root@localhost ~]# mdadm --create /dev/md5 --level=5 --raid-devices=3 /dev/sda7 /dev/sda8 /dev/sda9
mdadm: array /dev/md5 started.

then we will create raid5 like this
[root@localhost ~]# mdadm –create /dev/md5 –level=5 –raid-devices=3 /dev/sda7 /dev/sda8 /dev/sda9
mdadm: array /dev/md5 started

you can also check raid5

[root@localhost ~]# cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4]
md5 : active raid5 sda9[2] sda8[1] sda7[0]
      208640 blocks level 5, 64k chunk, algorithm 2 [3/3] [UUU]

 

thank you

by vishnu sharma

How to configure YUM (yellow-dog updater modifier) in windows and how can we access in redhat linux server

hii guys today we will learn how can we configure YUM in windows.and how can we access in redhat linux server. basically we learn that how can we access YUM remotely .Here we will access YUM windows to linux .you can also configure other system in yum and access in linux .its all remotely process .here i will show you i have one windows machine and one linux machine in virtual box i configure YUM in windows and access in linux remotely . Continue reading

How to open any ios file in Redhat linux

hello guys here we will learn how can we open any ios file in linux.Here we open iso file and copy some data or folder .it is very help full for linux because we can make YUM.(if u want to know what is yum ?and how to configure redhat linux server so click on link)  And we can also install important packge in linux .so it is very important how to open iso file in redhat linux. If u want to know how can we receive iso file in linux so click how can we transfer windows file in linux .when we receive iso file we will open like this Continue reading