Troubleshooting
Problem
QRadar upgrades or pretests can fail in environments or the appliance might incorrect trigger rules where dual stack networks are configured. The pretest utility check_iptables_rules.sh fails on appliances configured with dual stack as ip6tables and iptables are disabled due to an incorrect symbolic link. This can also lead to issues where rules are incorrect generated as iptables and ipv6tables symbolic links are broken. This technical note includes a support utility to assist administrators with APAR IJ32638 and APAR IJ32591 to resolve the issue.
Symptom
- A pretest error message as described in APAR IJ32638 might be visible in /var/log/setup-<version>/patches.log when this issue occurs:
[ERROR](-i-testmode) Patching can not continue Patch Report for (ip_address), appliance type: 1699 Patch pretest 'Check for invalid iptables rules' failed. (check_iptables_rules.sh) (hostname) : patch test failed. An error was encountered attempting to process patches. - Administrators who customize iptables or ipv6tables rules can also experience issues where the rules are not applied successfully as described in APAR IJ32591.
Document Location
Worldwide
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Document Information
Modified date:
06 July 2021
UID
ibm16464843