ICM Hostname Issue

[Former Member]

Hi Gurus,

I have below situation and need your suggestions/advices for further proceedings.

We have installed CRM system on cloud recently and the host name of this cloud server is “SAPLNX” (IP : 107.20.XX.XX )and this has been set in all host related parameters like SAPGLOBALHOST, SAPDBHOST by default.

The FQDN is saplnx.mycomany.com is maintain in parameter icm/host_name_full (mycompany is domain name)

But the problem is that whenever our CRM consultants are accessing the CRM WEB UI, they are receiving error “ hostname can’t be resolved”

This is because the hostname is not registered in our company DNS and it won’t be allowed due some security policies of our company. We also tried to maintain this hostname and IP in hostfile of the computer, but unfortunately, this trick also didn’t work.

So, Finally we have only option to sort out this problem :

The cloud server IP 107.20.XX.XX has public DNS host entry as “ec2-107.20.XX.XX.-compute1.amazonaws.com“ and our computers are resolving this hostname successfully. So, we want to pass this host entry to ICM instead of original FQDN saplnx.mycomany.com

Please suggest me the following

1.       1. Is it fine to have one host for ICM parameter and another hostname for other SAP parameters (please note that both are referring to same IP)

2.       2. If it is okay, is this fine to  maintain ec2-107.20.XX.XX.-compute1.amazonaws.com in parameter icm/host_name_full alone.

Regards,

Shankar

[Former Member]

simply add your internal FQDN that you see in SMICM->Services

to your hosts file under

C:\Windows\System32\drivers\etc

<PUBLIC IP of AWS>  saplnx.mycomany.com

[Former Member]

Hi Hari,

• Please check DNS entry in the User desktop.
• If the FQDN is saplnx.mycomany.com then the domain mycomany.com will accessible on one IP address, this IP should be maintain in users desktop > network connections > internet protocol Version TCP/IP4 > Properties > Use the following DNS server addresses > here maintain the IP of mycomany.com.
• Check the firewalls in the desktop, server and in the domain. pleaese let me know if not solved.

Thanks

Kishore Cherukumalla

[Former Member]

Hi Kishore,

Unfortunately, it didn’t work out. We tried to resolve host entry by all means but nothing worked out.

We have left with only the below options. Please suggest on this.

  1. Is it fine to have one host for ICM parameter and another hostname for other SAP parameters (please note that both are referring to same IP)

  2. If it is okay, is this fine to  maintain ec2-107.20.XX.XX.-compute1.amazonaws.com in parameter icm/host_name_full alone.

Regards,

Hari

[former_member188883]

Hi Hari

 1. Is it fine to have one host for ICM parameter and another hostname for other SAP parameters (please note that both are referring to same IP)

No . Not required

2. If it is okay, is this fine to  maintain ec2-107.20.XX.XX.-compute1.amazonaws.com in parameter icm/host_name_full alone.

Nat the local hostname to ec2-107.20.xx.xx-compute1.amazonaws.com. So that any request coming to local IP gets diverted to amazon IP.

Regards,

Deepak Kori

[former_member188883]

Hi Shankar,

Are the users able to open CRM UI using the FQDN ec2-107.20.XX.XX.-compute1.amazonaws.com ?

Regards,

Deepak Kori

[Former Member]

Hi Deepak,

Yes..Users are able to access the Web UI if they replace the saplnx.mycompany.com to ec2-107.20.XX.XX.-compute1.amazonaws.com in  Web UI link

Regards,

Hari

[former_member188883]

Hi Hari,

Do not change anything in the FQDN. Let users acess CRM Web ui it via ec2-107.20.XX.XX.-compute1.amazonaws.com.

Hope there are no company security problems in using this public url.

Regards,

Deepak Kori

[Former Member]

Hi Deepak,

Users can change URL when t-codes launches browser. For example, CRM_UI or BRFPLUS will launch the browsers sessions. In this case, then can replace the FQDN names.

But few t-codes won’t launce the browsers instead html session open in GUI itself. Please see below example. Here users can’t change the FQDN since there is no URL address bar as like in browers

This is the reason why we have to pass the new FQDN in ICM parameter.