vSTREAM Embedded on Linux

Introduction

 

 

 

This is a simplified installation procedure that meets most customer needs and can be used for installation of vSTREAM Embedded on any Linux-flavor host.  The complete and detailed installation guide can be found on MyNetscout.  We installed vSTREAM Embedded with success on physical servers but vSTREAM Embedded is only supported by Netscout on virtual machines.

 

Solution

Installation

Download or copy the most recent version of the .bin installer to a local directory on the target host, for example use wget to copy the installer to the /tmp directory. The file can be safely removed after completion.

# cd /tmp

# wget https://comcert.box.com/shared/static/something.bin

# mv something.bin is-6110-668-vSTREAM_EMB.bin

# md5sum is-6110-668-vSTREAM_EMB.bin

# chmod +x is-6110-668-vSTREAM_EMB.bin

# ./is-6110-668-vSTREAM_EMB.bin -i console

Should output (example on ubuntu):

vSTREAM-EMB install path selected: /usr/lib/NetScout
Starting installation of vSTREAM-EMB Version : 6.1.1  Build: 668
groupadd: group 'ngenius' already exists
groupadd: group 'vscout_lighttpd' already exists
vSTREAM-EMB installation has been successfully completed...
● vstream-emb.service - SYSV: Starts and stops NETSCOUT vSCOUT probe service
   Loaded: loaded (/etc/init.d/vstream-emb; bad; vendor preset: enabled)
   Active: active (running) since Tue 2019-05-07 16:26:53 UTC; 11ms ago
     Docs: man:systemd-sysv-generator(8)
  Process: 29896 ExecStart=/etc/init.d/vstream-emb start (code=exited, status=0/SUCCESS)
 Main PID: 30030 (nsprobe)
    Tasks: 13
   Memory: 346.4M
      CPU: 827ms
   CGroup: /system.slice/vstream-emb.service
           ├─30027 /usr/lib/NetScout/rtm/bin/procmanager
           ├─30030 /usr/lib/NetScout/rtm/bin/nsprobe -r -l -c -G
           ├─30057 /bin/bash /usr/lib/NetScout/rtm/bin/monvscoutd start
           ├─30059 /bin/bash /usr/lib/NetScout/rtm/bin/monvscoutd start
           ├─30061 ps -aux
           ├─30062 grep monvscout.sh
           └─30063 wc -l

May 07 16:26:39 ip-10-167-4-92 systemd[1]: Starting SYSV: Starts and stops NETSCOUT vSCOUT probe service...
May 07 16:26:39 ip-10-167-4-92 vstream-emb[29896]: Starting vstream-emb:
May 07 16:26:53 ip-10-167-4-92 systemd[1]: Started SYSV: Starts and stops NETSCOUT vSCOUT probe service.

Should output (example on CentOS):

Starting installation of vSTREAM-EMB Version : 6.1.1  Build : 668
Lighttpd service is running. Please make sure you choose different HTTP/HTTPS ports for vSTREAM-EMB configuration to avoid conflict with existing lighttpd service
groupadd: group 'ngenius' already exists
groupadd: group 'vscout_lighttpd' already exists
vSTREAM-EMB installation has been successfully completed...
vSTREAM-EMB is  running....
vSTREAM-EMB <---> nG1 communication agent is not running....
    user,  pid,  rss,  vsz,  pm,  pc, command
root      2728 494676 560092 24.2 11.5 nsprobe

 

Configuration

# cd /usr/lib/NetScout/rtm/config
# vi nsagent_config.cfg

Change "export HTTP_PORT=8080" to "export HTTP_PORT=7080"

Change "export HTTPS_PORT=8443" to "export HTTPS_PORT=7443"

Example:

export NSCOMM_PORT=395
export NSCONSOLE_PORT=1501
export HTTP_PORT=7080
export HTTPS_PORT=7443
export  MON_INF=eth0
export MGMT_INF=eth0

 

Start/Stop

# systemctl restart vstream-emb

or:

# service vstream-emb stop
# service vstream-emb start

Note: restarting the system may take a minute.

 

Test

Verify if services procmana and nsprobe are running

root@ip-10-167-4-92:/usr/lib/NetScout/rtm/bin# ./PS
    user,  pid,  rss,  vsz,  pm,  pc, command
root     30027  3152   4604  0.1  0.0 procmana
root     30030 494664 560080 24.1 7.2 nsprobe

 

Firewall

In case of a firewall, drill holes in the firewall on the host or between host and nGeniusONE Server to allow these sessions:

From nGeniusONE Server (Standalone or Local Server) to host:

• tcp/7080 or tcp/7443 (we recommend to use the latter)
• tcp/1501 (optional but required for Remote Login from nGeniusONE Server to vSTREAM Embedded)

From host to nGeniusONE Server (Standalone or Local Server):

• tcp/395 (optional but required for automatic registation of the vSTREAM Embedded in nGeniusONE Server)
• GRE (IP protocol number 47) or udp/50100. Tunneling packets is an optional features but it is recommeded to open these ports already.

 

Localconsole

Run the agent configuration utility to add vSTREAM Embedded to NGS.

# cd /usr/lib/NetScout/rtm/bin 
# ./localconsole

 

Rename

Go to NGS > Console > Device Configuration > Devices and change the name of the  vSTREAM Embedded you just added from its UUID to a more meaningfull name (example IS-<hostname>) before continuing to the next installation. 

 

Uninstall

# cd /usr/lib/NetScout/rtm/bin
# ./vscout_uninstall.sh