Customizing the ADFzCC server
- Required authorizations
- Multi-Factor Authentication (MFA)
  When clients initially connect to the ADFzCC server they are prompted for a user ID and a password or passphrase. If the credentials are valid, the client can start sessions on the relevant z/OS system as the nominated user.
- Using PassTickets
  The ADFzCC server can be configured to use PassTickets for authenticated clients.
- Setting SSL/TLS encrypted communications
- Using AT-TLS for encrypted communications
- Update sample IPVCONFG
- Create matching WORKDIR by running job IPVMKDIR
  The IPVMKDIR job creates a work directory to be used with the server. It is supplied in the sample library hlq.SIPVSAM1.
- Check address space timeout
- Add ports to TCPIP reservation list
- Configuration considerations for IBM® Explorer for z/OS® (z/OS® Explorer)
- Configuring TCP/IP stack affinity

Configuring TCP/IP stack affinity

About this task

When multiple TCP/IP stacks are in use on the system, you can specify the desired ADFzCC stack on the started task.

Procedure

Create a new PDSE data set with LRECL=80 and RECFM=FB. For example:
```
<hlq>.EXMP.CONFIG
```
Create a new member in the data set, for example, <hlq>.EXMP.CONFIG(TCPDATA). In the new member, include the following line:
```
TCPIPJOBNAME TCPIPPRD
```
where TCPIPPRD is the name of the desired TCP/IP stack.
In the IPVCONFIG member , for example, <hlq>.EXMP.CONFIG(IPVCONFIG), add the following line to each product's SPAWN_PARMS_SECTION:
```
 SPAWN_DD=SYSTCPD=<hlq>.EXMP.CONFIG(TCPDATA)
```
Restart the ADFzCC started task for the changes to take effect.