Difference In Outputs When Using TLS1

Hello All,

I am rookie when it comes to security protocols and I am learning this as part of my job responsibilities.

Recently our Application started implementing TLSv1.2 and here are some questions that I have from my observations.

1st the term ciphers, keys, certs are all very confusing to however I started to get some understanding of these as I am reading a lot of stuff.
Now, my application is running on "X" server and only accepts TLS1.X connections since the i use java 7 where ssl2Hello is disabled

now from Server "A" when I run cmd: openssl s_client -tls1 -host xxx -port yyyy
I get back a response in which I see a line
New, TLSv1/SSLv3, Cipher is ECDHE-RSA-AES128-SHA
the openssl version on server A is: 1.0

when I run the same command from another server "B" I get a response in which the line says:
New, TLSv1/SSLv3, Cipher is EDH-RSA-DES-CBC3-SHA
the openssl version on server B is: 0.9

My understanding of cipher was something that is enforced by the application server "X" and not by the client that is making the call. Is that a wrong understanding ?
And how can I find out what type of cipher is being enforced by the server "X" when someone makes a call to it.

Anyone who can help me understand why the difference how this entire stuff operates.
Help much appreciated.

Encryption And Decryption At The Application Layer

Hello everyone,
i would like to encrypt & decrypt data at the application level.
This data needs to be send to another device via wireless.I found one such cipher named ceaser cipher in the internet.But it looks weak and easy to be broken. Can someone suggest me robust cipher's concepts which can be done at application layer?

How To Update Openssl?

Hello,

I am using " Red Hat Enterprise Linux ES release 4 (Nahant Update 5)
Kernel \r on an \m
" and have " OpenSSL 0.9.7a Feb 19 2003 "
I wish to update openssl to new version OpenSSL 1.0.2a.

Please advise...

Thank you very much.

An Error Occurred During The File System Check

Hi all!! Im new in this forum and also new at linux !!

I am installing an application that includes automatically the instalation of CentOS 6.3.

The server that hosts this application and OS had a power outage and then when i turn on the server again i get the error that you can see in this pictu http://postimg.org/image/7opm0xzel/

I have 2 disks in the system, 1 for the application and SO and other to store call recordings (thats what the application do, record calls!).

If I re-install the system it has no problem!! But i dont want to re-install the system every time i have a power outage because i lost too much and important information.

I have installed this application in other server and had no problem with power outage. In this server the diference is that it originally had raid and i "remove it" frome the BIOS. Maybe here is the problem??

Anyone can help me?? Remember im really new in linux !!

Awk On Remote Server

Hi,

I am running awk command on remote server it is not giving desired results but if i run the same command on local server. it works as expected. Can anybody help me to resolve this and let me know the logic behind this?

Remote server

# ssh test 'free -g | grep Mem | awk -F " " '{ print $2 }''
awk: cmd. line:1: {
awk: cmd. line:1: ^ unexpected newline or end of string

local server
# free -g | grep Mem | awk -F " " '{ print $2 }'
31

Thanks in advance.

Rsync Script Problem

Hi all,

I am trying to write a script that syncs files from source to destination. I have one centralized server that can ssh to any servers without pw. Now when I run the script, it can ssh to source server perfectly fine, but you need to enter password for destination server. Was wondering how I can clean this up before I start using case statements

Below is a sample I wrote

#!/bin/bash

#This scripts syncs shit

echo "Type in ID: "
read ID

echo "Type in Server : " #source server
read S

echo "Type in Destination Server: "
read DS

if [ $S == 9 ]; then
ssh -t "root@"$S"webserver1" "rsync -av /home/rlui/"$ID "root@"$DS"webserver2:/home/rlui/";
ssh -t "root@"$S"webserver1" "rsync -av /home/rlui/tmp/"$ID "root@sl"$DS"webserver2:/home/rlui/tmp/"
exit 1

where S and DS are cluster numbers

I apologize in advance if I am not clear on anything

Firewall-cmd --state "not Running"

I have been flailing trying to get a web server running on Fedora 21.

Finally did so.

I have my iptables working (me thinks) as they should. I can connect from my Linux box (local) or from my Mac on the same network/subnet.

Problem is in my "travels" I have somehow trashed my firewall-cmd.

I was adding parameters to it w/o issue. E.G
firewall-cmd --zone=public --add-port=80/tcp --permanent
Then restarting firewall-cmd
firewall-cmd --realod

This was all working. I "fixed" my problem with connecting to my web server from other LAN workstations (iptables issues) and was going back to see if all was well. Now when I try to restart I get a:
FirewallD is not running
That from my "reload" command above.

Have I fixed my web server issue or is my world wide open att?

Assistance, as always, greatly appreciated.

Skip

Duplicate Folder Creation While Using Mkdir In A Script

Hello,

I am setting up a linux server for gaming and I am using a script to update the files automatically and create a folder with a certain name.

Code:

# !/bin/bash

# A convenience function, to save us some work
update_server() {
	# Read the app id and the directory into a variable

	APP_ID=$1
	DIR=$2

	# Create the directory ( if it does not exist already )
	if [ ! -d "$HOME/$DIR" ]; then
		mkdir -p "$HOME/$DIR"
	fi

	# Uh-oh, it looks like we still have no directory. Report an error.
	if [ ! -d "$HOME/$DIR" ]; then
		# Describe what went wrong
		echo "ERROR! Cannot create directory $HOME/$DIR!"

		# Exit with status code 1 ( which indicates an error )
		exit 1
	fi

	# Call SteamCMD with the app ID we provided and tell it to install
	./bin/steamcmd.sh +login anonymous +force_install_dir "$HOME/$DIR" +app_update $APP_ID validate +quit
}

# Now the script actually runs update_server ( which we just declared above ) with the id of the application ( 4020 is Garry's Mod ) and the name of the directory we want the server to be hosted from:

update_server 4020 "gmodserver"

exit 0

When I run this script, it creates 2 folders on my server : gmodserver and gmodserver? There is no files downloaded in gmodserver. All the files are downloaded in gmodserver?

I looked for a few hours on how to solve this problem but I have no idea what the added ? might be so I am lost as to what to look for. Could you help me on figuring this out?

Thank you.

edit : I am using ubuntu 15.04 x64 if it makes a difference.

Error While Running My Run.sh

Hello,

I am trying to run a java application, but i'm getting an error when running my run.sh

This is my run.sh
Code:

java -classpath bin:deps/poi.jar:deps/mysql.jar:deps/mina.jar:deps/slf4j.jar:deps/slf4j-nop.jar:deps/jython.jar:log4j-1.2.15.jar server.Server

Here is the error while running run.sh
Code:

Exception in thread "main" java.lang.UnsupportedClassVersionError: server/Server : Unsupported major.minor version 51.0
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
        at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: server.Server.  Program will exit.

Thanks

Urgent!! File Transfer From Windows To Linux Server Using Ftp

Dear All

I need your help.
I want to get a file from windows server using ftp.
Below is the script I have created but the connection is not established:

#!/bin/sh

lcd "directory in linux server"
USER="username of windows server"
PASS="password"

ftp -n "ip of windows server" <<EOF
user $USER $PASS

cd "C:\Users... directory in windows server where file is located"
bin
get test1234.txt

bye

EOF

I hope somebody can help me!
BR,

Changing XML Property Value

Hi, I am using a XML file in server location which contains some attributes and value.I just want to replace the attribute value inside the tag keeping the complete line and xml file intact. I am looking for Regular expression which can search for attribute name and replace the attribute value with the provided one. Please find below property details.

<server>
<mbean code="com.xyz.domain.wsmq.WSMQConnectionFactory"
name="xyz.qps:service=MQQueueConnectionFactory">
<attribute name="QueueManagerName">QMSTR01</attribute>
<attribute name="HostName">xx.yy.zz.ww</attribute>
<attribute name="Channel">channel01</attribute>
<depends>jboss:service=Naming</depends>
</mbean>
</server>

Difference In Outputs When Using TLS1

Similar Content