NOTE: It may take some time for your clock to fully synchronize. Now restart the ntp service on your host: $ sudo systemctl start ntpd 1.7 Verify that ntp is working Synchronize your clock: $ sudo ntpdate 137.164.48.196 We will manually set our local clock to be synchronized with the clock of the ntp server at 137.164.48.196.įirst we must stop the ntp service as the ntpdate command will conflict with the ntp service: $ sudo systemctl stop ntpd ( NOTE: If you are installing at your home location you may simply want to leave the server entries in your ntp.conf file or use a known, local ntp server instead of what we use for this workshop.) 1.6 Set your local clock This is a local ntp server that we are running in our classroom for this workshop. Please comment out all these entries in your ntp.conf file like this: #server .a.host iburst # a comment goes hereĪdd this entry to the bottom of the file (our local ntp server, not filtered): server 137.164.48.196 iburst There should be multiple entries that look like this at the bottom of the file: server .a.host iburst # a comment goes here ( Note: You can use "nano" instead of "vi" if you do not like the vi editor) $ sudo vi /etc/ntp.conf To resolve this problem edit the file /etc/ntp.conf: The tests that perfSONAR uses require that clocks be synchronized. We need the Network Time Protocol to be working to be able to synchronize clocks between our hosts. Port 123 might be filtered on our local network. We configure NTP now as it can take some time before your clock fully synchronizes. Now log out of your host and log back in as the user workshop. To allow the workshop user to use sudo for system command we need to add the user to the wheel group: # usermod -aG wheel workshop
Centos 7 rpm install tcpdump password#
Now set the password for the user "workshop" to our class password (given out in class): # passwd workshop 1.4 Add the user to the wheel group To create the user "workshop" do: # adduser workshop 1.3 Create a new userĭuring this workshop we will use the userid "workshop" and the `sudo`` command to do our work.įirst you should be connected via SSH to your FIONette as the user root to get started. In Linux/UNIX the convention is that a line preceded with a "#" indicates executing a command as the "root" user.Ī line that is preceded with a "$" indicates executing a command as a general user. This package include the following software: In addition the CentOS 7 Development-Tools meta package is installed.
Centos 7 rpm install tcpdump install#
The assumption is that CentOS 7 is installed on your host and that you have the necessary tools and configuration to install the perfSONAR Testpoint software bundle.
1.19 Run pscheduler with a less agressive test.1.18 Use pScheduler to run an iperf test between two hosts.1.17 Use bwctl to run an iperf test between two hosts.1.16 Use iperf to run a throughput test between two hosts.
1.15 Reboot and verify services are running.1.13 Verify that perfSONAR Firewall Rules are applied.1.12 Install perfSONAR Optional Packages.1.11 Installing the perfSONAR Testpoint Bundle.1.8 Installing additional network tools first.1.5 Configure NTP for our local network.