[GitHub] [trafficcontrol] zrhoffman opened a new issue, #7649: sockd in CDN in a Box on RHEL 8: undefined symbol: _gethostbyaddr

["zrhoffman (via GitHub)" <gi...@apache.org>]

zrhoffman opened a new issue, #7649:
URL: https://github.com/apache/trafficcontrol/issues/7649

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   <!-- Do not submit security vulnerabilities or support requests here - see above -->
   ## This Bug Report affects these Traffic Control components:
   <!-- delete all those that don't apply -->
   - CDN in a Box
   
   ## What did you do?
   <!-- If the current behavior is a bug, please provide the *STEPS TO REPRODUCE* and
   include the applicable TC version.
   -->
   Tried to run the CDN in a Box socksproxy service now that CDN in a Box is on RHEL 8:
   
   ```shell
   docker-compose -f docker-compose.yml -f optional/docker-compose.socksproxy.yml up --build -d
   docker-compose -f docker-compose.yml -f optional/docker-compose.socksproxy.yml logs -f socksproxy
   ```
   
   ## What did you expect to happen?
   <!-- Describe how the bug happens -->
   `sockd` runs
   
   ## What actually happened?
   <!-- Describe what the behavior would be without the bug -->
   The error you see when starting `sockd`:
   
   ```shell
   $ sockd
   Jul 14 16:26:03 (1689351963.686598) sockd[41]: error: symbolfunction(): compile time configuration error?  Failed to open library "libc.so": libc.so: cannot open shared object file: No such file or directory
   Jul 14 16:26:03 (1689351963.686702) sockd[41]: alert: mother[1/1]: shutting down
   ```
   
   and if you symlink `libc.so.6` to `libc.so` like this,
   
   ```shell
   ln -s libc.so.6 /lib64/libc.so
   ```
   
   `sockd` instead gives this error:
   
   ```shell
   Jul 14 16:28:35 (1689352115.892862) sockd[37]: error: symbolfunction(): compile time configuration error?  Failed to find "_gethostbyaddr" in "libc.so": /lib64/libc.so.6: undefined symbol: _gethostbyaddr
   Jul 14 16:28:35 (1689352115.892971) sockd[37]: alert: mother[1/1]: shutting down
   ```
   
   IIRC, CentOS 8 did not require symlinking `libc.so` to get the `undefined symbol: _gethostbyaddr` error.
   


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