IBM Z Hardware and Operating Systems Ideas Portal


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Communications Server

Add support for Network Express to the NMI EZBNMIFR GetIfStatsExtended request to show Inbound Workload Queueing data

Inbound Workload Queueing data is not available for the Network Express adapter, which is integrated directly into the the EQDIO support and always active.
2 days ago in z/OS / Communications Server Submitted

Persistent Pause support DISTPAUSE/DISTRESUME for EXTTARG

Our requirement is not simply to prevent traffic from being distributed until the zCX server and the Sysplex Distributor listener servers are active. We need the zCX instance to become an eligible target for workload distribution only when the com...
18 days ago in z/OS / Communications Server Submitted

Add persistent store-and-forward buffering for remote SYSLOGD destinations

Problem description: The z/OS SYSLOGD currently provides only in-memory buffering for messages forwarded to remote syslog destinations over TCP. When a remote collector becomes unavailable for an extended period, the internal queue can become exha...
25 days ago in z/OS / Communications Server Submitted

NCA Audit Logs

We need a way when rules are changed in the stack and what stacks are impacted for zOS NCA policies . Currently we dont know who made a change, but say a change is made to a Traffic Descriptor that changes a port and it impacts rules that are curr...
6 days ago in z/OS / Communications Server Submitted

Please Upgrade z/OS 3.1 & 3.2 to OpenSSH 9.9 or better, to support post-quantum algorithms sntrup761x25519-sha512 and mlkem768x25519-sha256

This would make SSH Server on z/OS more secure and prevent "store now, decrypt later" attacks. Thanks!
about 1 month ago in z/OS / Communications Server Submitted

z/OS resolver should comply with the requirement in RFC 1034 to use case-insensitive name comparisons when checking for matching domain names

RFC 1034 requires to use case-insensitive name comparisons when checking for matching domain names. Based on a recent incident that we experienced, it seems that the z/OS resolver does not do this. We are requesting the z/OS resolver to comply wit...
almost 2 years ago in z/OS / Communications Server Future consideration

make z/OS FTP does support MLSD

z/OS FTP does not support MLSD, therefore, in Filzilla and other FTP clients, files with more than 99 exdents are not displayed in the file list, with MLSD this would be possible
about 2 years ago in z/OS / Communications Server Future consideration

Enable Sysplex Distributor traffic draining (Disable/Quiesce) for zCX EXTTRG targets

Description In environments using IBM z/OS Container Extensions together with Sysplex Distributor, zCX instances are commonly exposed as TCP targets so that inbound traffic can be distributed across multiple zCX environments running on different L...
6 months ago in z/OS / Communications Server Future consideration

Client Certificate validation on AT-TLS Server with client authentication

In AT-TLS, when the HandshakeRole parameter is set to ServerWithClientAuth, a certificate request is sent to the client during the handshake. The client can send its certificate to the server, which can then validate the certificate. The level of ...
about 1 year ago in z/OS / Communications Server Not under consideration

PFS UDS MAXSOCKETS for AF_UNIX

Currently, our application development department is using the C syslog() API to send logs to SYSLOGD. SYSLOGD forwards these messages to another syslog server which puts the data into Splunk. During our load and performance test, we hit the barri...
7 months ago in z/OS / Communications Server Under review

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