Needs to be ported to rhel-10. Not present in httpd-2.4.62-2.el10

+++ This bug was initially created as a clone of Bug #1493510 +++

Description of problem:
Currently the user behaviour for httpd enabled at boot is sub-optimal; if enabled, httpd may start before dependent network interfaces.

Version-Release number of selected component (if applicable):
httpd-2.4.27

How reproducible:
always

Steps to Reproduce:
1. add Listen 10.23.4.5:80 to httpd.conf
2. systemctl enable httpd
3. reboot

Actual results:
httpd will fail to start if 10.23.4.5 is not up

Expected results:
We need one of:

1. an option for the Listen directive which uses IP_FREEBIND (APR_SO_FREEBIND in apr)
2. a new config option which enables IP_FREEBIND always when binding
3. a new directorive ListenFree or similar
4... something else

— Additional comment from Luboš Uhliarik ✈ on 2018-03-07 14:23:22 UTC —

Fix pushed to GIT -> moving to MODIFIED.

GIT: http://pkgs.devel.redhat.com/cgit/rpms/httpd/commit/?h=rhel-8.0&id=e38ec32896653967a34f78b3dec05d8bbc5466e7

— Additional comment from Joe Orton on 2018-03-21 15:54:13 UTC —

Test.

— Additional comment from Branislav Náter on 2018-09-25 09:14:27 UTC —

Hi Lubos,

can you provide me with some documentation/man regarding ip free bind. I'm not able to find anything. Thanks

B.

— Additional comment from Branislav Náter on 2018-10-17 09:22:02 UTC —

freebind enhancement is working but what about documentation here? Where can user find something about ListenFree or that this directive even exists? Thanks

— Additional comment from Luboš Uhliarik ✈ on 2018-10-18 09:17:49 UTC —

Documentation provided in following commit:

http://pkgs.devel.redhat.com/cgit/rpms/httpd/commit/?h=stream-2.4&id=dae525d66ecdce607fb8ff2833b07b10bd6cf5bd

BUILD: https://mbsweb.engineering.redhat.com/module/2120

— Additional comment from Branislav Náter on 2018-10-18 13:16:21 UTC —

Thanks.

"Description: IP addresses and ports that the server listens to. Doesn't require IP address to be up"

• IMO "network interface" will sound better then "IP address" (to be up) in that sentence.

— Additional comment from Branislav Náter on 2018-10-26 07:20:40 UTC —

Verified on httpd-2.4.35-6.el8+2089+57a79027 in Beta-1.1 compose (RHEL-8.0-20181024.1) on all supported architectures.

:: [ 12:51:52 ] :: [ PASS ] :: Command 'sed -i 's/^Listen 80/Listen 1.2.3.4:80/' /etc/httpd/conf/httpd.conf' (Expected 0, got 0)
<snip>
:: [ 12:51:53 ] :: [ LOG ] :: Oct 25 12:51:52 ibm-p9z-16-lp1.pnr.lab.eng.bos.redhat.com httpd[13195]: (99)Cannot assign requested address: AH00072: make_sock: could not bind to address 1.2.3.4:80
<snip>
:: [ 12:51:53 ] :: [ PASS ] :: Start httpd should fail (Expected 1, got 1)

:: [ 12:51:53 ] :: [ PASS ] :: Command 'sed -i 's/^Listen 1.2.3.4:80/ListenFree 1.2.3.4:80/' /etc/httpd/conf/httpd.conf' (Expected 0, got 0)
:: [ 12:51:53 ] :: [ PASS ] :: Start httpd (Expected 0, got 0)

:: [ 12:51:54 ] :: [ PASS ] :: Command 'curl -s --connect-timeout 1 http://1.2.3.4 | grep '<h1>Red Hat Enterprise Linux'' (Expected 1, got 1)
:: [ 12:51:54 ] :: [ PASS ] :: Add 1.2.3.4 to loopback device (Expected 0, got 0)
:: [ 12:51:54 ] :: [ PASS ] :: Command 'curl -s --connect-timeout 1 http://1.2.3.4 | grep '<h1>Red Hat Enterprise Linux'' (Expected 0, got 0)

Beta build doesn't have documentation which has been added in httpd-2.4.35-10.el8+2120+5e836124. Setting PreBeta verified for now.

— Additional comment from Branislav Náter on 2019-01-09 13:13:26 UTC —

Verified on httpd-2.4.37-7.module+el8+2443+605475b7

TCMS test case run: https://tcms.engineering.redhat.com/run/350678/#caserun_19837354

Documentation is present in httpd-manual rpm, reachable on http://<hostname>/manual/mod/mpm_common.html#listenfree