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Ascent Support Document

Linux command set commonly used

Root access or su access is required for most of the below jobs. Please make sure you have

one.

You will be connected to linux server on ssh port 22 (default)

It will be a good idea if you have a secure file sharing client sharing client

ps aef (to list all running processes)

| (to redirect output)

Grep (to filter pattern)

So, # ps aef | grep will fetch you the desired, in our case

# ps aef |grep sipsecure

#ps aef |grep securertp

# df h (to view disk usage)

#top (to view memory usage by programs and load on server)

#tshark (to view or capture network packets)

#getenforce (to see the status of selinux) (ideally it should be disabled)

#service mysqld status

#iptables -L (to list the soft firewall rules)

#iptables F (to flush the existing rules to default)

#service iptables save (to make the changes permanen ie. Save in the configuration

file)

#kill (to kill the processes)

#crontab -e (to edit crontab)

* You will not need to use crontab initially.

#tshark n S R -w somefile.pcap

This will display and capture the patternand write it in the file in raw format (desired)

-n will disable name resolution, to prevent the wireshark/ network services to be

interrupted or hang while in process of name resolution

-S will be necessary to use if you want t display and capture both

-R read ie. Display the capture

-w writes ie. Saves the capture

After wireshark use, always remove contents in /tmp/ folder


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# uname a (to see if the OS is 32 bit or 64 bit)

#ulimit a (displays all types of user limits)

#vi

To edit or view any file

Demo steps:

The information you should have:

SIP server IP/domain name

Valid test account

Balance link (not always provided on demo stage)

CDR/call history link (not always provided on demo stage)

http://85.13.254.26/ascentdemo_ne/ManageTokens.aspx

This is the link to view/add auth-codes .Following are details of the entries

1. Auth token : will be a unique numeric, filled by you

2. SIP server : will be provided by customer

3. SIP Port : Default is 5060 unless any other port provided by customer

4. Company name : customer company name-demo or customer name-demo

5. Call URL : The CDR link provided by customer, if not you can fill the customer domain

name

6. Auth URL : The balance link provided by customer

7. Encryption IP : ascent encryption ip with port

Example - 192.168.0.1:86

The above link is actually a web app for the MsSql database in the same server.

In some cases you might need to run queries on the server itself.

Once the auth-token is successfully created,

Test the dialer Registration

balance link

calls

voice quality

Troubleshooting

You need to check the following:
http://85.13.254.26/ascentdemo_ne/ManageTokens.aspxhttp://85.13.254.26/ascentdemo_ne/ManageTokens.aspx


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Authenticity of the details provided by you. For that you will use x-lite.

Cross check all entries in the auth code page.

Check the services on the encryption server. We have 2 server side applications for

SIP and RTP, mentioned above in Linux section. To restart a service you need to

simply kill the process, there is a script that will bring the process up.

Check the SIP Ip in the Ip address table, commonly located at/usr/local/etc/sipsecure/ip_addr_file

Run wireshark on server and try to analyze the packet flow.

Encryption server: (32/64 bit centos Linux )

Sipsecure , securertp (ascent applications)

Mysql (dependency)

The above should be running at all times

With that you will need to see disk usage and network usage

Flow Diagram of Ascent Applications

Auth Code (TCP Request)

SIP Details (IP,Web links )(HTTP Response )

*Encrypted *Decrypted

*Encrypted *Decrypted

*SIP + RTP Packets

adhishnigam: 31.193.168.4 32n108A3b2

SIPClient(AscentPC/MobileDialer)

Provisioning/Authentication

Server (Windows)

EncryptionServer (Linux)

RTP

SIP ProxyServer

RTP

Carrier


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