Hiding Webhost's Nameservers In DNS

I am trying to login to my linux server. I was initially doing "ssh hostname". The login did not work, so I tried "ssh username@IP", which still prompted me with the yes/no prompt, but I received this error:

Code:

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
XX:XX...:XX.
Please contact your system administrator.
Add correct host key in /Users/user/.ssh/known_hosts to get rid of this message.
Offending RSA key in /Users/user/.ssh/known_hosts:5
RSA host key for 192.168.1.3 has changed and you have requested strict checking.
Host key verification failed.

I have an expect script to SSH to a remote host and obtain some user inputs and information about the server/network configuration. The responses are saved in a text file that I then need to copy to my local host so that I can read the lines into variables for use in the parent shell script.

Is there a way to do this without needing to enter the username and password for the local host to use function scp? I have tried the following in my expect script to no avail:
Code:

spawn scp $usr@$host:$flnm .
expect {
	-re "(.*)assword:" { 
		send -s "$pswd\r"
	}
}

I have also tried to directly scp the file and enter the username and password to try to debug the issue, and that doesn't work either:
Code:

spawn scp file.txt user@host:file.txt
expect {
	-re "(.*)assword:" {
		send -s "password\r"
	}
	"you sure you want to continue connecting" {
		send -s "yes\r"
		exp_continue
	}
}

In both scenarios I have used exp_internal 1, and there are no errors. But I do not end up with the file on my local host.

Following the copy, I would like to delete the file from the remote host. Any suggestions on how to accomplish this?

Trying to set up Virtual Host on Ubuntu 14.04.

Any help to solve this is greatly appreciated!!!

Here is info:

Directory: /var/www/mydb.com/public_html (owner set to $USER:$USER)

Permissions: sudo chmod -R 755 /var/www/

Sample Page: /var/www/mydb.com/public_html/index.html (Shows Message)

Virtual Host Files:

Sites Available: mydb.com.conf
set ServerAdmin => admin@mydb.com
set ServerName => mydb.com
set ServerAlias => www.mydb.com
set DocumentRoot => /var/www/mydb.com/public_html

Sites Enabled: mydb.com.conf
ServerName mydb.com
ServerAlias www.mydb.com
ServerAdmin admin@mydb.com
DocumentRoot /var/www/mydb.com/public_html


I: disabled 000-default.conf w/a2dissite
enabled mydb.com.conf w/a2ensite

HOSTS File /etc/hosts:

127.0.1.1 localhost mydb.com
127.0.0.1 localhost
127.0.1.1 rick-Latitude-E6510

Result of localhost/mydb.com Same with www.mydb.com.

404 Not Found.
The requested URL /mydb.com was not found on this server.
Apache/2.4.7 (Ubuntu) Server at localhost Port 80

This from /var/log/apache2/access.log

127.0.0.1 - - [03/Apr/2015:13:19:08 -0700] "GET /mydb.com HTTP/1.1" 404 496 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:37.0) Gecko/20100101 Firefox/37.0"

I am in the process of setting up my first VPS to host a website that I have been working on. By profession, I am a programmer, so I know nothing of Linux or web hosting!!

Thanks to lots of help on here this weekend, I finally learned how to access my VPS using SSH. (That only took a day or two to learn!) And my first command-line task was learning how to copy a file to another folder while maintaining the original modified date. (That only took another half-day!)

Whew!

So the next thing that I need to do is set up MySQL on my VPS...


My VPS runs on CentOS 6, and it also comes with cPanel, but since astrogeek and Miati were persistent in explaining why it is better to do things via the command-line versus using a GUI, I figured I would check things out...

My cPanel comes with some "wizard" that supposedly sets up a MySQL database for you, but whenever I see "wizard" I tend to run!

Advanced Support for my web host said that I should definitely use cPanel to create my database and create the users, because if I did it using phpMyAdmin it would supposedly mess things up as cPanel wouldn't recognize things?

(BTW, I requested MySQL Root access this morning, but I do not have Root access to my VPS - by choice for now!)


Questions:
1.) Should I listen to my web host and use the cPanel wizard to create a new MySQL database?


2.) If I decide to bypass cPanel, how exactly would I use my MacBook to talk to my VPS and do MySQL stuff over command-line?

FWIW, I developed my entire database using phpMyAdmin in MAMP on my MacBook. When I created my original database in development, I used phpMyAdmin's GUI. And then for everything else (e.g. create table, indexes, queries, etc.), I hand-wrote the SQL in TextEdit and then ran it in phpMyAdmin.

But I have no clue how to do any of this on my VPS!!


3.) How would I use the command-line to create a new database and set up groups and users for MySQL?


4.) If I did things by command-line, is it true that I would break cPanel?


I have been working on my website for the last 3 years, and it is ready to "go live", but I am discovering that setting up my VPS properly - and with lots of security - and getting things like PHP and MySQL set up is a very daunting task!!!



Sincerely,


Rob

is it possible to set the time of the virtual machine according to the host system on which it is installed????
i tried to do it by enabling the "hardware clock in UTC time" in the Motherboard tab.. but it is giving me the time in UTC format.. but i want it in IST format.. can anyone help me in this.



Thanks in Advance

Hi all,

Would love some advice about how to get a solution here.

Goal - join two separate ssh sessions together. I want to see if keys used to login to a bastion host can be different than keys used to login to server from bastion.

Scenario - I will login to a bastion host using ssh and my keys from my machine. The bastion host will then login to the actual server on my behalf - using a different set of keys. The ssh session from my machine to the bastion host and from the bastion host to the server now needs to be connected, for me to feel as if a transparent SSH proxy is just forwarding commands.

I have read up a bit on ssh proxies but it seems like this is not implemented right off the bat. I have read - http://en.wikibooks.org/wiki/OpenSSH...and_Jump_Hosts , I have also looked at screen sessions - but am not sure how to "merge" two ssh screen sessions together.

Any advice will be very helpful.

Thank you.

hello,

i am trying to make a table from some files. i used this to record how much "RD_" field i have in my file. Quote:
grep -o 'RD_' $f|grep -c 'RD_'
forexample i got 5 "RD_" fields now i want to print 5 number of fields from another file starting from 2nd field. i did it mannully like Quote:
awk 'NR==1{print"{"$2","$3","$4","$5","$6","0.0000",""0.0000""}"","}' $file
i want to make it work together and a bit auto matic like PHP Code:
awk 'NR==1{print"{"$2"to "$5"," apend zeros to make it total 7 fields"}"","}' $file 


your coments would be apreciated
thanks alot

Hello all.
I have been using Linux OS's of and on since 1996. I completely gave up on MS in 2006. I change out a hard drive in my PC and MS thought I should purchase a new site license, I did not agree with that train of thought.
I found that popping in a disk and getting Linux up and running was easy to the belief that "Nothing could be this easy". It really was. The learning curve was encountered when trying to make Linux Fly. I recommend that everyone new to Linux or anyone with a desire to do a bit more than e-mail, catalog some photos or music get your hands on a Linux command reference guide and learn the terminal. There is so much to understand and do With Free Open Source Software and there are so many ways to access, install and configure the available software. There are so many resources for help and trouble shooting all things Linux however, here's the caveat; I really had to learn how to ask the question to get an answer that worked for me. General question will get you general answers and rarely ever was the answer I sought found the hodgepodge of generalities found in forums or Google searches and the like. I learn to be very specific in my question and the answers were discerned with less difficulty. There are really answers or fixes for the questions I have had concerning Linux.

I have a hostlist and there are several hosts. I want to use ssh to connect to them. I want to see whether the host is available or not by the time length of ssh takes. If it take long than 5s (which means it is not available). Then stop it, and ssh to next host. Once a host is available, then output the name of host. I previously use nmap, but the IT security told it is not allowed to install it on the desktop on campus.
Code:

host_list="/home/campus27/zwang10/Desktop/cluster/program/hostlist"
HOSTS=`cat $host_list`
for line in $HOSTS
do 
timeout -5s `ssh $line`
done

The above script is all I can do.

I need to make following Project on Image Watermarking, need suggestions of maximum people how to start this.
1.) My project shall include a Host file of size(M*M), which will hide a watermark of size(N*N) (may be a grayscale, text or true color image).
2.) Need to encrypt watermark( Suggestions are needed whether use selective encryption, ciphering), where to get maximum help and how to implement this.
3.) Which algorithm I should prefer to encrypt watermark and why?????
4.) Ideas to make Key for Encryption.
5.) Idea to embedd the watermark in host image( Either to use DWT,SVD,DCT,Fibonacci Haar Wavelet) and in which band???????????
6.) What will I loose or gain on embedding in lower frequency bands and higher frequency subbands.
7) How I can make watermark Robust to Rotation, Scaling, Croping, Resizing. Ideas to generate such code.
8.) What performance parameters will decide my robustness.
9.) How to Extract watermark and will they be extracted after attacking the watermarked image.
I will be grateful, if you give your valuable suggestions.