Bug 811566
| Summary: | Unable to disable IDN at "dig" out put | |||
|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 5 | Reporter: | Kamal Maiti <kmaiti> | |
| Component: | bind97 | Assignee: | Adam Tkac <atkac> | |
| Status: | CLOSED ERRATA | QA Contact: | Branislav Blaškovič <bblaskov> | |
| Severity: | medium | Docs Contact: | ||
| Priority: | medium | |||
| Version: | 5.8 | CC: | azelinka, bblaskov, ovasik, pyaduvan | |
| Target Milestone: | rc | |||
| Target Release: | 5.8 | |||
| Hardware: | x86_64 | |||
| OS: | Linux | |||
| Whiteboard: | ||||
| Fixed In Version: | Doc Type: | Bug Fix | ||
| Doc Text: | Story Points: | --- | ||
| Clone Of: | ||||
| : | 833868 (view as bug list) | Environment: |
Red Hat Enterprise Linux 5.8
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| Last Closed: | 2013-01-08 04:06:35 UTC | Type: | Bug | |
| Regression: | --- | Mount Type: | --- | |
| Documentation: | --- | CRM: | ||
| Verified Versions: | Category: | --- | ||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | ||
| Cloudforms Team: | --- | Target Upstream Version: | ||
| Embargoed: | ||||
| Bug Depends On: | ||||
| Bug Blocks: | 833868, 858990 | |||
The manual page is wrong. IDN support in Red Hat distributions is based on libidn library (instead of idnkit, which is shipped as part of BIND source). The IDN_DISABLE environment variable is idnkit-specific option. The correct libidn environment option is "CHARSET", which is similar to LANG. I.e. you can run export CHARSET=ASCII dig axfr . @k.root-servers.net |grep '^xn--' I will update manual page appropriately, thanks for the report. This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux release for currently deployed products. This request is not yet committed for inclusion in a release. This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux release for currently deployed products. This request is not yet committed for inclusion in a release. Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2013-0043.html |
Description of problem: A. Cu would like to disable idn display. So, he tried to execute following commands : [root@]# dig axfr . @k.root-servers.net | grep 'xn--' [root@]# env IDN_DISALBE=t dig axfr . @k.root-servers.net | grep 'xn--' He is unable to disable. Version-Release number of selected component (if applicable): bind97-utils-9.7.0-6.P2.el5_7.4.x86_64 How reproducible: $ dig axfr . @k.root-servers.net | grep 'xn--' $ env IDN_DISALBE=t dig axfr . @k.root-servers.net | grep 'xn--' B. Secondly, as per manual of "dig" in connection with IDN, cu doesn't get expected result. He would like to modify this document too. From manual : ----snip------ IDN SUPPORT If dig has been built with IDN (internationalized domain name) support, it can accept and display non-ASCII domain names. dig appropriately converts character encoding of domain name before sending a request to DNS server or displaying a reply from the server. If you´d like to turn off the IDN support for some reason, defines the IDN_DISABLE environment variable. The IDN support is disabled if the variable is set when dig runs. -----snip----- Steps to Reproduce: 1. 2. 3. Actual results: dig out put doesn't show non-IDN domains Expected results: dig out put will show non-IDN domains Additional info: Following work around solution works fine : To obtain the xn-- variations the easiest options is simply to run with LANG=ASCII which forces the conversion regardless. $ LANG=ASCII dig axfr . @k.root-servers.net | grep '^xn--' | wc -l 328 $ LANG=ASCII dig axfr . @k.root-servers.net | grep '^xn--' | head xn--0zwm56d. 172800 IN NS a.iana-servers.net. xn--0zwm56d. 172800 IN NS b.iana-servers.net. xn--0zwm56d. 172800 IN NS c.iana-servers.net. xn--0zwm56d. 86400 IN DS 56231 8 1 A4F7756C0B5E82D9E31E8649F097B81F4E28F683 xn--0zwm56d. 86400 IN DS 56231 8 2 D569A173FA0099A428A4B5E0EAF6ED445309C9D76F2D8FB4CE83AEF5 AE79D593 xn--0zwm56d. 86400 IN RRSIG DS 8 1 86400 20120329000000 20120321230000 51201 . loklh26PX7NrzAbJTxQqsxTn6HwZGujDeeLxKHtXI88JYBxHEgHkurKr ZgYljw/t1mRgLghldcJ6iNEti2IjfKZgdsK5O6fbp0tFziuCltTg/Hjr 1BX9GMehkZeXaTQgiO7YmPSe1vfzYqnB4Rg395XOByEzUqIZOPejxDod 0Tg= xn--0zwm56d. 86400 IN RRSIG NSEC 8 1 86400 20120329000000 20120321230000 51201 . BUnkUos+NR/iRfS73w3qn+BZcXCsAjP2wandklKrxydxS4LGrPoK7gda 3x1JCFPnJwtJf0PGRZd4AEo3wHomhQPARhtaUWOm+h/qAOEo1IiXlz0h +CmOlBrP+UoFF6/7WMTHKvnX3WzgnvsNHO1AgQN0qtPyHSmRptuIZnOC Um8= xn--0zwm56d. 86400 IN NSEC xn--11b5bs3a9aj6g. NS DS RRSIG NSEC xn--11b5bs3a9aj6g. 172800 IN NS a.iana-servers.net. xn--11b5bs3a9aj6g. 172800 IN NS b.iana-servers.net. FYI : As currently built, if the code thinks the terminal can handle characters >127 then it will output the domain names in true format.