Hostname Missing In CLI

I have setup postfix in Oracle Linux VM in virtualbox to test simple email sends that I am sending it to my personal email.

I have configured the following in main.cf file

myhostname = abc.testserver.org
myorigin = $myhostname
inet_interfaces = localhost
#relayhost = localhost.localdomain - I have this commented as of now, but I tried with the localhost.localdomain, IP address and none worked. I also do not have my ISP's server details and I also do not want to use it.

I checked the /var/log/maillog and I see the following

Code:

May  4 17:25:37 oim sendmail[31684]: t44LPbKA031684: from=root, size=72, class=0, nrcpts=1, msgid=<201505042125.t44LPbKA031684@localhost.localdomain>, relay=root@localhost
May  4 17:25:37 oim sendmail[31685]: t44LPbSn031685: from=<root@localhost.localdomain>, size=378, class=0, nrcpts=1, msgid=<201505042125.t44LPbKA031684@localhost.localdomain>, proto=ESMTP, daemon=MTA, relay=localhost.localdomain [127.0.0.1]
May  4 17:25:37 oim sendmail[31684]: t44LPbKA031684: to=abc@abc.com, ctladdr=root (0/0), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30072, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (t44LPbSn031685 Message accepted for delivery)

I can also see the messages in /var/spool/mqueue/. The telnet to the localhost 25 port also works. Is any of the config settings wrong?

Thanks.

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.

Hi All,

Not able to find TREE command in EL6, its working fine in EL5. Need help on this.

Below are the details.



[root@localhost ~]# mkdir -p /college/sports/performer/cricket

[root@localhost ~]# tree /college/
-bash: tree: command not found

[root@localhost ~]# tree college/
-bash: tree: command not found

[root@localhost ~]# which tree
/usr/bin/which: no tree in (/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin: /usr/bin:/root/bin)

[root@localhost ~]# uname -a
Linux localhost.localdomain 2.6.32-71.el6.x86_64 #1 SMP Wed Sep 1 01:33:01 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux

[root@localhost ~]# id
uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel) context=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023

When I bring up Linux Ubuntu I would like to get a login prompt and choose as whom to log in. Then I would like to say startX or something like that and to get into X-windows. As I am in X-windows I would like to, do a right mouse click or something and chose “open a new terminal” or something. I used to do that all back over decade ago. Then I haven’t used Linux for over a decade. Now I got a box with Ubuntu, but …

When I bring it up I automatically get logged in as “Owner” and I get into interface that limits what I can do. Specfically, I don’t see how to become a different user, how to get into command line mode, how to run X-windows and open multiple terminal windows. And I would like to decide myself when to invoke some fancy GUI interface, instead of being forced into it..

I found one way to do some of what I want: ctl-alt-functionkey. But when I log in and do startX from there the right mouse click does not give me “open new terminal” option.

Could somebody help me out? Thank you very much in advance.

Roman

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"

First time post so I hope it's not too long winded!

I've just installed Centos v7.1 and created an additional user.

First putty session I logged in with root and got the public fingerprint message and clicked Yes to accept.

However I noted when I logged in with the user other I did not get the prompt and my home directory didn't have a .ssh directory.

OK, so I created a .ssh (chmod 700) directory within /etc/skel and created a new user. Logged in with that account and still no prompt, although I do now have a .ssh directory generated.

I've tried deleting the known_hosts files in the root's .ssh directory and restarting the sshd daemon but it's not working.

How do I get it to prompt with original public key again?

Thanks for reading.

I have a shell script that calls an expect script I wrote to ssh login to another host and get user input regarding that host's network configuration. I pass four arguments to the expect script: the remote host ip address, the username, the password, and the list of commands to run. My expect script is below:

#!/usr/bin/expect
# Usage: expectssh <host> <ssh user> <ssh password> <script>

set timeout 60
set prompt "(%|#|\\$) $"
set commands [lindex $argv 3];

spawn ssh [lindex $argv 1]@[lindex $argv 0]

expect {
"*assword:" {
send -- "[lindex $argv 2]\r"
expect -re "$prompt"
send -- "$commands\r"
}

"you sure you want to continue connecting" {
send -- "yes\r"
expect "*assword:"
send -- "[lindex $argv 2]\r"
expect -re "$prompt"
send -- "$commands\r"
}

timeout {
exit }

expect -re $prompt
send -- "exit\r"
}

The script runs well, except that if I send a command such as 'read' that requires user input, the script does not continue or exit after the user presses enter. It just hangs.

The commands I pass to the expect script and it's call are as follows:
SCRIPT='hostname > response.txt;netstat -rn;read net_card?"What is the network interface card number? " >> response.txt; read net_mask?"What is the subnet mask? " >> response.txt'

/usr/bin/expect ./expectssh.exp $hostip $usr $pswd "$SCRIPT"

Any suggestions on how I can pass a command to my expect script that requires user input without it hanging?

On a side note because I know it will come up - I am not allowed to do key-based automatic SSH login. I have to prompt for a username and password, which is done from my main shell script.

Thanks for any suggestions and help you can provide!

hi sir.need ur help. a desktop comp is endorsed to me with Linux system. the previous user failed to give the password for localhost root and im not able to login to the system. I really need to backup the files and programs installed and afraid to reboot since our database program is installed in the pc. would really appreciate your help.ty

Hi,

I've used unix before, but have just started to play with CYGWIN (1.1.3) on windows XP (32 bit). I'm having trouble getting 'echo' to behave as I would expect.

I've created a script called runstuff which contains these lines....
Code:

#!/bin/bash
# This line works as expected....
echo "the user is <$USER> and the hostname is <$HOSTNAME>"
MYVAR1=bill
MYVAR2=fred
# This lines doesn't.....
echo "my first variable is<$MYVAR1> and my second is <$MYVAR2>"

The output I get is this...
Quote:
$ runstuff
the user is <Mike> and the hostname is <MikesLaptop>
> and my second is <fredl

In the first echo statement it is just echoing a couple of external variables - this works as expected. In the 2nd echo example the two variables are internal, but the displayed output isn't what I'd expect, my guess is that the first part of the output "my first variable is <bill" has somehow been overwritten by the remainder of the string. Or am I missing something?

I have tried exporting the variables, and I've experimented with wrapping them in quotes, but the results are always the same.

Any help gratefully received.

Wow, I got my new Linux pc yesterday and it's very very fast. It's faster than my new MacBook.
So I go to the user account which also says administrator so I'm presuming that's the root owner?????? and I typed in my name and changed the password. The guy who sold it to me named the password user and the computer user. Yet when I go to the terminal my username and computer is still called user@user
How do I change the root password and computer name?