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Course 2017-2018

Master CyberSecurity -- University of Granada

LogoHeadMasterCES

UGR | DICITS | SCI2S | DECSAI

Manuel J. Parra Royón ([email protected]) & José. M. Benítez Sánchez ([email protected])

This is the repository for:

Module: Network and Systems Protection and the course Security in Operating Systems

In this section you can consult the cluster structure to be used in the subject.

Access to the servers

Two servers will be accessed:

  • bahia.ugr.es
  • docker.ugr.es

To access the clusters it is necessary to use SSH, if you use Windows, you will need the SSH Putty application or if you use Linux, the ssh command is already integrated.

The connection data to the clusters are:

  • Server: bahia.ugr.es or docker.ugr.es
  • Port: 22
  • Username: <your assigned username>
  • Password: <your assigned password>

To connect by ssh to the servers is used:

ssh <your assigned username>@bahia.ugr.es

or

ssh <your assigned username>@docker.ugr.es

Use your assigned password when asked.

Port diagram enabled for each user:

Each user has a range of 10 TCP ports and 10 open UDP ports on X and Y. These ports will be used to make available services that are enabled from containers or virtual machines.

So ports that are used locally on bahia.ugr.es and docker.ugr.es for services must always go in the range that has been set for each user.

This is the schema of the port range:

Schema

Each user has 10 ports within the range 14XXX. The rank assigned to each user will be provided during the practice class, always being a contiguous range of ports.

To access the services, depending on the service we will use the corresponding application. For example, if it is a web service that has been installed/published in port 14067, to see the service, we can see it in the browser: http://bahia.ugr.es:14067/ and this will redirect traffic to the service that is running in that port within bahia.ugr.es.

Table with port assignment:

User bahia.ugr.es docker.ugr.es docker.ugr.es docker.ugr.es docker.ugr.es
Name external MULTI external LDAP external WEB internal WEB IP internal WEB IP
cs_75XXXXX2 14000 al 14009 30200,30201 30800 192.168.10.161 192.168.10.141
cs_76XXXXX5 14010 al 14019 30202,30203 30801 192.168.10.162 192.168.10.142
cs_76XXXXX2 14020 al 14029 30204,30205 30802 192.168.10.163 192.168.10.143
cs_44XXXXX9 14030 al 14039 30206,30207 30803 192.168.10.165 192.168.10.144
cs_31XXXXX3 14040 al 14049 30208,30209 30804 192.168.10.166 192.168.10.145
cs_14XXXXX8 14050 al 14059 30210,30211 30805 192.168.10.167 192.168.10.146
cs_76XXXXX7 14060 al 14069 30212,30213 30806 192.168.10.168 192.168.10.147
cs_75XXXXX4 14070 al 14079 30214,30215 30807 192.168.10.169 192.168.10.148
cs_75XXXXX6 14080 al 14089 30216,30217 30808 192.168.10.170 192.168.10.149
cs_15XXXXX7 14090 al 14099 30218,30219 30809 192.168.10.171 192.168.10.150
cs_23XXXXX6 14100 al 14109 30220,30221 30810 192.168.10.172 192.168.10.151
cs_14XXXXX5 14110 al 14119 30222,30223 30811 192.168.10.173 192.168.10.152
cs_76XXXXX4 14120 al 14129 30224,30225 30812 192.168.10.174 192.168.10.153
cs_46XXXXX1 14130 al 14139 30226,30227 30813 192.168.10.175 192.168.10.154
cs_20XXXXX7 14140 al 14149 30228,30229 30814 192.168.10.176 192.168.10.155
cs_77XXXXX4 14150 al 14159 30230,30231 30815 192.168.10.177 192.168.10.156

Ports in docker.ugr.es are redirected to 389 and 636 (i.e: first 30208 -> 389 ; second 30209 -> 636).

Next steps

Once understood the scheme of work and access to the servers, the next thing to do is work with Docker containers on bahia.ugr.es

Starting docker