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Can a TXT or SPF record be longer than 255 characters?
Cause SPF record does not support more than 255 characters in a single string. So if we attempt create an SPF record with more than 255 characters in single string, NIOS will return an error "Invalid text string". Resolution Following are two workarounds with examples. Using double quoted (" ") strings in an SPF record to…
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"System swap space usage exceeds the critical threshold value" error, things to know and data
1) What is swap space and its use? Swap space in Linux is used to avoid the system running out of memory. Based on a hardcoded swappiness value, inactive pages in memory are moved to the swap space. While swap space can help machines with a small amount of RAM, it should not be considered a replacement for more RAM. Swap…
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Synopsis on WannaCry Ransomware Campaign
May 2017 WannaCry Ransomware Campaign Overview On May 12th, 2017, a massive ransomware attack was initiated against organizations worldwide. The infection hit tens of thousands of hosts and encrypted their files. The attack uses a malware called WannaCry and an exploit called ETERNALBLUE. There was also a separate…
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Recommended information to provide when submitting technical case to Infoblox Support
Objective This Knowledge Base article is designed to aid case submission to partners providing Level 1 / Level 2 supporting their end user under Infoblox's Partner Support Program (PSP). Support Request Submission Partners requesting for technical assistance from Infoblox support should provide as much information as…
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Grid members cannot forward reports to indexing server
PROBLEM SUMMARY Grid members cannot forward reports to the reporting server which indexes them. In technical terms, "forwarder is not able to send reports to the indexer". CUSTOMER ENVIRONMENT Grid members and reporting server are in different networks with a firewall between them. VERSION All NIOS 5.x and 6.x versions.…
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Key signing key for the root zone scheduled to change on October 11, 2017
This KB is intended for customers that already have DNSSEC validation configured and working How to check whether DNSSEC validation is enabled? Login to NIOS GUI Navigate to Data Management>DNS>Click on 'Grid DNS Properties' from Toolbar>Toggle Advanced Mode>Select 'DNSSEC'> Scroll down and verify whether 'Enable DNSSEC…
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Infoblox NIOS product is vulnerable to CVE-2017-3142 and CVE-2017-3143
Overview On June 28, 2017, ISC announced CVE-2017-3142: A TSIG vulnerability which allows unauthorized zone transfer under some circumstances. On June 28, 2017, ISC announced CVE-2017-3143: A TSIG vulnerability which allows unauthorized DDNS updates under some circumstances. Summary CVE-2017-3142: This vulnerability is…
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Can you please explain Upgrade Groups and what they are used for?
Problem Summary Can you please explain Upgrade Groups and what they are used for? Customer Environment Grid with multiple members Version 6.x, 7.x Resolution We can organize members into upgrade groups and schedule their software distributions. This is useful, for example, in a large Grid spanning multiple time zones where…
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Logs/data required to troubleshoot DHCP issues
Problem Summary This KB will help in collecting logs/data required to troubleshoot different DHCP related issues. Customer Environment: Infoblox grid or standalone appliance running DHCP service. Version: All NIOS Version DHCP server not leasing out IP Addresses Please do the following if you are still experiencing the…
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vNIOS appliance experiencing frequent resets
Problem Summary vNIOS appliance experience frequent resets Customer Environment vNIOS deployment Versions NIOS 7.x NIOS 6.x Cause VMWARE running snapshot against the vNIOS appliance NOTE: This is NOT the ONLY cause of vNIOS resets. We recommend you eliminate this as your first step in troubleshooting A VMWare snapshot will…
