Is it safe to use virtual machines when examining malware?

We want to study for the CEH program and have downloaded 12 DVDs that 6 DVDs are software key-loggers, Trojans, etc. that are all detected by antivirus. This prevents us from examining them and learning how they work.

I have instructed students not to uninstall antivirus as running these malicious files is not safe on its own. It might even spread on the network.

One of the students suggests to use Windows XP mode. Is this safe? I see these articles 1 and 2 here but the answers are contradictory and confuse us.

Are virtual machines safe for downloading and installing Trojans, key-loggers, etc.?

Is there another way to solve this problems, e.g. set up a lab, to show what happens to victims of the malware?

how to setup ssh tunnel to named virtual host

I’m currently setting up server inside our lab at Uni that will be used for multiple purposes including a bibliography database and a CI Server (Jenkins). In order to maintain clean separation of concerns, I have a jailed virtual host for each function along with an assigned internal domain name. Inside the lab, the arrangement works fine.

However, in order to connect to our lab from home, we need to first VPN into the Uni and then SSH into our lab’s gateway machine. From the gateway we can access any internal machines we need to reach, and use SSH Tunnels as needed.

I’m wondering if it is possible to access virtual hosts through a single SSH tunnel? Like Server Name Indication (SNI)? Or would I need to setup a proxy server like Squid? I gather that both DNS as well as HTTP traffic would need to be routed correctly. Can this be done using just hosts file settings?

Any advice would be much appreciated. Thanks!

How to apply Kubernetes cluster to an existing azure virtual mechines

I have an existing azure virtual machines that deployed 30 docker containers. So I have decided to use Kubernetes service/cluster to manage deploy dockers container on that existing azure virtual machines. I have also deploy azure registry to store docker images.

Is it possible way? Please help to give me your opinion?

2 directories listing with different credentials in 1 virtual host conf?

Is it possible to list 2 different directories, each with their own different username/password in the same documentroot in the same virtual host conf?

Ultimate goal is to browse to: https://myservershostname and it displays 2 directories, dir1 and dir2, if you click on dir1 you can only get into it if you type the password for user1, and if you click on dir2 you can only get into it if you type the password for user2.

my non-working config:

<VirtualHost *:443>     DocumentRoot "/app/httpd/home/htdocs/"     ServerName myservershostname  <Directory "/app/httpd/home/htdocs/">   Options Indexes FollowSymLinks </Directory>  <Directory "/app/httpd/home/htdocs/dir1/">       AuthType Basic       AuthName "Restricted Content"       AuthUserFile /etc/httpd/.htpasswd       Require user user1 </Directory>   <Directory "/app/httpd/home/htdocs/dir2/">       AuthType Basic       AuthName "Restricted Content"       AuthUserFile /etc/httpd/.htpasswd       Require user user2 </Directory>  </VirtualHost> 

Currently when I browse to https://myservershostname it doesn’t list anything. Any input or resources to look at would be very appreciated

Help/Feedback: Interaction with virtual character

Hey guys, I'm conducting a short psychological study for my thesis on social interactions. First, you'd do me huge favor if you participated (it's of course anonymous): THANK YOU!

Also, as you will see I'm using a virtual character in the study and would love to receive constructive criticism in order to optimize it. However, for the study please ignore the potential weak points of the presentation and just imagine the situation. :D

Thanks a lot!

Do the “virtual memory”s mentioned in the 2 articles refer to different things?

I’ve read the following 2 articles explaining the difference between virtual memory and physical memory. One thing that I found confusing is that the term virtual memory seems to mean different things in these 2 articles.

What Is the Difference Between Virtual Memory & Physical Memory? says Virtual memory is used when the RAM is filled.

While Wikipedia says virtual memory is used to tell programs where the physical memory is.

Is one of the articles wrong? Or does virtual memory have different meaning in different context?

Looking for virtual online bidder [Fix Salary + Commission]

Yes as the title says, I need an expert online bidder who can bid for my web services and get the businesses for the company. In return I will pay a fix salary + commissions per leads.

Working time : Upto you.
Report : Weekly

If you think you can do that then inbox me for further discussions on the job.

Btw I am not spammer and I dont want any spammer – irresponsible person work with me.
Work with me wisely and get the pay timely.

Thank you

Name based virtual hosting on non-routable IPs

Vague title I know but I wasn’t sure how to summarise what I am trying to achieve.

Basically, I have an internet router port forwarding port ext port TCP 443 to the same port on an internal IP addressed linux reverse proxy running apache 2.2.

This reverse proxy is then forwarding connections on to the actual hosts of the web content.

Previously the server doing the reverse proxying was the internet gateway, and this worked as it had the public IP address that the CNAME resolved to for the name based vhosting.

However, since now this server has an internal IP address this is broken.

How can I achieve this or is there a better way if I want to use CNAMEs for name based vhosting.

What I had tried and failed at was to use rewrite to rewrite the address to the internal hostname but since that changes the address for the client of course they can’t hit it.

<VirtualHost>     ServerName      RewriteEngine on     RewriteCond %{HTTP_HOST} ^blah\.somedomain\.net$       RewriteRule (.*)     <Location />         Order deny,allow         Allow from all     </Location> </VirtualHost>  <VirtualHost>     ServerName     ProxyPass /     ProxyPassReverse /      <Location />         ProxyPassReverse /         Order deny,allow         Allow from all     </Location>     SSLEngine On     Include /etc/letsencrypt/options-ssl-apache.conf     SSLCertificateFile /etc/letsencrypt/live/     SSLCertificateKeyFile /etc/letsencrypt/live/     SSLCertificateChainFile /etc/letsencrypt/live/ </VirtualHost> 

Any suggestions?



Mount the Vplex Virtual Volume ( LUN ) Xen Server

Hello ServerFault members,

Please help me with this issue.

I am in very strange situation with my Xenserver environment. I am trying to mount the Dell EmC ( Vplex LUN ) to the Xen server HA and when I use the HBA connection I don’t see the Lun.

here is the details about the environment.


XENS001 & XENS002

VERSION: XenServer release 7.5.0 (xenenterprise)

Multipath ; Enable

when I choose the HBA and probing for the LUN I don’t see the Drive and it works perfectly works if I choose FCoE.

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thank you so much in advance for all the help and time.