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2738531 - FAIL: NIECONN_REFUSED (Connection refused), NiRawConnect failed in plugin_fopen()

Symptom

Local sapstartsrv is confirmed to be up and running but does not respond to sapcontrol client calls such as:

sapcontrol -nr $$ -function GetProcessList
sapcontrol -nr $$ -function VersionInfo

The response is:

FAIL: NIECONN_REFUSED (Connection refused), NiRawConnect failed in plugin_fopen()

Operating system command below will show that the hostname "localhost" is not correctly bound to the loopback interface IP as it should but to some other IP that belongs to the host:

server1:sysadm 01> niping -v

Hostname/Nodeaddr verification:
===============================

Hostname of local computer: server1 (NiMyHostName)
FQHN of local computer: server1.com.sap (NiGetOwnFQDN)

Lookup of hostname: server1 (NiHostToAddr) --> IP-Addr.: 10.20.30.40
Lookup of IP-Addr.: 10.20.30.40 (NiAddrToHost) --> Hostname: server1.com.sap

Lookup of hostname: localhost (NiHostToAddr) --> IP-Addr.: 10.20.88.77
Lookup of IP-Addr.: 10.20.88.77 (NiAddrToHost) --> Hostname: server1-bkp


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Environment

SAP NetWeaver release independent

Product

SAP NetWeaver Application Server for ABAP innovation package all versions ; SAP NetWeaver all versions

Keywords

sapstartsrv, network, soap:1023, srt_log, srt_admin, smicm, icm trace, sm21, dev_icm , KBA , BC-CST-STS , Startup Service , BC-NET , Network Infrastructure , Problem

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