ss doesn't allow AND or OR expressions with parenthesis in RHEL 8

ss doesn't allow AND or OR expressions with parenthesis in RHEL 8

 SOLUTION 已驗證 - 已更新 2019年十一月6日15:37 - 

English 

環境

• Red Hat Enterprise Linux (RHEL) 8
• iproute

問題

• In RHEL 8 its been observed that the ss program cannot work with parenthesis, but this filter was working in RHEL 7.

  Raw

  ss sport = 22 or dport = 22
    but not with:
  ss sport = 22 or ( dport = 22 )
  

決議

• Please update to one of the following package versions or higher to resolve this issue:

Release	Errata	Package version
RHEL 8.1	RHEA-2019:3602	iproute-4.18.0-15.el8