Passphrase On SSH Key

OpenSSH_6.7p1, OpenSSL 1.0.1f 6 Jan 2014

I am having trouble adding a ecdsa key to ssh-add
However, I can add a rsa key without problem.

My file permissions:
Code:

id_ecdsa miati:miati-600
id_ecdsa.pub miati:miati-644
id_rsa miati:miati-600
id_rsa.pub miati:miati-644
/home/miati/.ssh/ miati:miati-700

When I try to add rsa & ecdsa

Code:

$ ssh-add id_rsa
Enter passphrase for id_rsa: 
Identity added: id_rsa (id_rsa)
$ ssh-add id_ecdsa
Enter passphrase for id_ecdsa: 
Error reading response length from authentication socket.
Could not add identity: id_ecdsa

My command to create each key

Code:

ssh-keygen -t rsa -b 4096
ssh-keygen -t ecdsa

I have some variables which have stored numerical values like
Quote:
A1=10 A2=20 A3=25
B1=10 B2=15 B3=12 and so on
As well as another set of variables which stored these variables like
Quote:
var1=A1 var2=A2 var3=A3
var4=B1 var5=B2 var6=B3 and so on
I have to calculated things using second set of variable.
In the script, there is line
Code:

read number

user will enter number manually, suppose 500
I have to calculate using
Code:

expr 500 \* ${$var1} / 100

and output of this multiplied by
Code:

expr $above_output \* ${$var2} /100

and output of this multiplied by
Code:

expr $above_output \* ${$var3} /100

But not able to deal with two levels of variable. The calculation will be hard when it comes for three level and four level.

Please help.

hi people,

i reinstalled my server with centos 7 to get familiar with it...

i have a laptop that im using cygwin on to ssh into the centos 7 server.

i ran ssh-keygen -t rsa on the server and now in .ssh i have a public and private key created.

i copied the public key from the server to my C:\cygwin64\home\Administrator\.ssh\known_hosts file

now when i input:
ssh userontheserver@serversip

it asks for the passphrase which i created when i did the keygen
on the server

when i put the passphrase in it says permission denied
and returns me to the command line

what am i doing wrong?

do i have the steps correct?

am i right in saying that you need to have the servers public key in your known_hosts file on the client computer to get communication working?

I have 2 linux boxes Code:

HP-UX server1 B.11.11 U 9000/800

and Code:

 CentOS release 6.3 (Final)

I need to setup a password-less ssh. I could login from HP-UX to cent os but not other way.

Is it possible to use password less ssh both ways ? Is there any extra step in HP to setup keygen?

what I am doing

Code:

ssh-keygen -t rsa

copy the ~/.ssh/id_rsa.pub from client machine to ~/.ssh/authorized_keys on server machine

okay, forgot the passphrase for the encryption, now i cant get pass the unbunto start screen. Started this project for my little girls computer and had to leave town for job. now cant remember the passphrase, and cant get the recovery to work. Do i have to install new, and if so, how?? disk is locked and i need to get this up and running to learn how to use it. I have hit the shift key, started it in grub, advance options for unbunto, selected Unbunto, with Linux 3.13.0-45-generic (recovery mode), get to flashing commands and it stops...wait a about 20 seconds..[76.096156] random: nonblocking pool is initialized, and nothing more. screen dosnt change, and the recovery screen i seen on vids dosnt appear. any help would be helpful

Trying to get my website set up, and not hang myself in the process!!

So, last night I was able to upload my website's DB from my laptop to my VPS using CyberDuck.

Being new to all of this, I uploaded the .sql file to...
Code:

/home/rob123/public_ftp/

Then I used MySQL to install the upload script.

That went well, but now I have this naked script floating around on my VPS!

How can I delete this .sql file and be 100% certain that it is NOT lingering somewhere else on the server, and that it CANNOT be recovered??

(For those of you who have followed my threads, I am *very* worried about files and login credentials and passwords getting stored in places that they shouldn't!!!)


Also, in retrospect I am thinking it wasn't so smart to upload my DB to a public folder like that.

In the future, what is a better way to upload sensitive files to my VPS to maintain complete Privacy and Security??

Oh the stress of it all!!!

Sincerely,


Rob

I have CentOS 7 64 bit. I have installed open-vm-tools on it.
I have installed vmplayer using
Code:

./VMware-Player-6.0.1-1379776.x86_64.bundle

Now when I try to open vmplayer on it, it does not load 'Virtual Network Device'
and shows error in terminal
Code:

Failed to build vmnet.  Failed to execute the build command.

When I check status of vmware, it shows
Code:

Module vmnet not loaded

If I try to run
Code:

vmware-modconfig --console --install-all

It gives me following error.
Code:

make: Leaving directory `/tmp/modconfig-2NfFeS/vmnet-only'
Unable to install all modules.

I am not able to open VMplayer, please help me to open it.

Thanks

--Kind Regards
Sam

System Info:

I have normal user in CentOS 7 whose name is "mostafa" (the name of the account).

I naturally have another user called root with all privileges. User "mostafa" is put into sudoers file, too.

The OS is installed in VmWare, so the system is all mine.

Problem:

Now I create a file with touch file.sh and put a command in it, but when I want to run it with Code:

sudo ./file.sh

, an error is shown that the command Code:

./file.sh

does not exist. But if I Code:

 sudo chmod 777 ./file.sh

then it gets run. My question is that, why should I use Code:

chmod 777

when I myself have created the file, and I am in sudoers.

Can anyone explain me why shuold I still use Code:

sudo chmod 777

when the creator of the file is me.

Hi All,
I am trying to get a dump of a process using kill and it doesn't look to be working, can someone explain what I am doing wrong?

Code:

systemctl start snmpd.service

Code:

pgrep snmpd
4233

Code:

kill -3 4233 > /tmp/snmp_pid.txt

OR

Code:

kill -SIGQUIT 4233 > /tmp/snmp_pid.txt

Yes the process quit's which is fine but there is no output from the process in /tmp/snmp_pid.txt.

Can someone please explain?

Thanks

Dear All,

I am trying to install a certificate and then authenticate with LDAP,
but I think I have been lost somewhere in the middle :

In a CentOS 7 system,
First, I would like to make sure that the certificate is installed and used :

Code:

yum install ca-certificates
update-ca-trust enable
cp cacert.pem /etc/pki/ca-trust/source/anchors/
update-ca-trust extract

When I do :
Code:

openssl s_client -showcerts -connect ...:636

Code:

openssl verify cacert.pem 
cacert.pem: OK

Code:

openssl version -d
OPENSSLDIR: "/etc/pki/tls"

Solved with :
Quote:
openssl s_client -showcerts -connect ...:636