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Bijo's questions

Martin Hope
Bijo
Asked: 2011-10-03 18:19:44 +0800 CST
  • 2

Possible Duplicate:
What is the difference between a cloud server a virtual server and a dedicated server?

Can anyone explain the difference between virtualization and cloud (w.r.t. citrix and openstack) ???

I have a server installed with Citrix and another with openstack; local- in my office. In their own documentation, Citrix says it is virtualization where as openstack says it is a private cloud....

I have searched on many blogs. They are saying both are different. I am really confused. I could'n find any differences !!!!!

virtualization cloud
Martin Hope
Bijo
Asked: 2011-07-14 14:39:59 +0800 CST
  • 14

How do I add timeout for "expect" in the following script? I want to set it as 120 seconds.

#!/bin/bash
HOST="localhost"
USER="myuname"
PASS="mypassword"

VAR=$(expect -c "
spawn ssh $USER@$HOST
expect \"password:\"
send \"$PASS\r\"
expect \"\\\\$\"
send \"ls\r\"
expect -re \"$USER.*\"
send \"logout\"
")

echo "==============="
echo "$VAR"
bash expect
Martin Hope
Bijo
Asked: 2011-05-20 00:05:30 +0800 CST
  • 4

I have passwordless access to a server. My user account has added in sudoers file for NOPASSWD usage for some services/daemons in /etc/init.d/.

I want to write a script to start or stop a daemon according to some test results. I had set a cron to run this script at a specific time. But it returns error "sudo: no tty present and no askpass program specified".

I can use the " sudo /etc/init.d/service name start/stop without password in terminal.I do not have root password.

I have double checked /etc/sudoers file. There is no "requiretty". I am using Ubuntu-10.04 , 2.6.32-24-generic.

Following are the active lines in sudoers:

Defaults        env_reset
root    ALL=(ALL) ALL
bijo ALL=NOPASSWD: /etc/init.d/apache2
%sudo ALL=(ALL) ALL
%admin ALL=(ALL) ALL
scripting cron sudo