[Kea-users] kea-dhcp4 service failing to start with 'cannot open shared object file'

duress at mailbox.org duress at mailbox.org
Fri Feb 20 08:15:37 UTC 2026


that .so does not exist on my system:

root at diorite:/usr/sbin# stat /usr/lib/aarch64-linux-gnu/libkea-dhcpsrv.so.145
stat: cannot statx '/usr/lib/aarch64-linux-gnu/libkea-dhcpsrv.so.145': No such file or directory

The missing output file is probably user error, I've been mucking with my local email service all day since I've been stuck on dhcp, things are slightly broken at the moment and I've had to resend a few of these responses.

I'll put the the missing output on my webserver:
https://pdxlents.online/strace_output.txt

> On 02/20/2026 9:09 AM CET Razvan Becheriu <razvan at isc.org> wrote:
>  
>  
> I can't find the strace output attached. maybe the file is too large.
>  
> can you share it using some other way?
>  
> thx
>  
> 
> > ---------------------------------------------
> > From: Razvan <razvan at isc.org>
> > To: Kea <kea-users at lists.isc.org>
> > Date: Friday, 20 February 2026 10:08 AM EET
> > Subject: Re: [Kea-users] kea-dhcp4 service failing to start with 'cannot open shared object file'
> > 
> >  
> > is there a link named:
> >  
> > /usr/lib/aarch64-linux-gnu/libkea-dhcpsrv.so.145 ?
> >  
> >  
> >  
> > ls -la /usr/lib/aarch64-linux-gnu/
> >  
> >  
> > 
> > > ---------------------------------------------
> > > From: Razvan <razvan at isc.org>
> > > To: Kea <kea-users at lists.isc.org>
> > > Date: Friday, 20 February 2026 10:00 AM EET
> > > Subject: Re: [Kea-users] kea-dhcp4 service failing to start with 'cannot open shared object file'
> > > 
> > >  
> > > thank you for the output. will look into it.
> > >  
> > > also attach the output of the  ./kea-dhcp4 -W
> > >  
> > > I am suspecting this is a compilation issue with no relocation capabilities ..aka -fPIC for dynamic libs.
> > >  
> > > Thank you
> > >  
> > >  
> > > 
> > > > ---------------------------------------------
> > > > From: duress <kea-users at lists.isc.org>
> > > > To: Kea <kea-users at lists.isc.org>
> > > > Cc: duress <duress at mailbox.org>
> > > > Date: Friday, 20 February 2026 9:50 AM EET
> > > > Subject: Re: [Kea-users] kea-dhcp4 service failing to start with 'cannot open shared object file'
> > > > 
> > > > Output of strace -f attached.
> > > > 
> > > > Regarding the reference to libkea-dhcpsrv.sp, my presumption has been that that file is mentioned because it is what's trying to load libdhcp_ha.so, but i can't say i know that for certain.
> > > > ldd of libkea-dhcpsrv.so also reports no errors:
> > > > 
> > > > root at diorite:/etc/kea# ldd /usr/lib/aarch64-linux-gnu/libkea-dhcpsrv.so
> > > >        linux-vdso.so.1 (0x0000ffffbf2cd000)
> > > >        libmysqlclient.so.21 => /lib/aarch64-linux-gnu/libmysqlclient.so.21 (0x0000ffffbe8c0000)
> > > >        libpq.so.5 => /lib/aarch64-linux-gnu/libpq.so.5 (0x0000ffffbe840000)
> > > >        libkea-process.so.57 => /lib/aarch64-linux-gnu/libkea-process.so.57 (0x0000ffffbe7e0000)
> > > >        libkea-eval.so.52 => /lib/aarch64-linux-gnu/libkea-eval.so.52 (0x0000ffffbe770000)
> > > >        libkea-dhcp_ddns.so.41 => /lib/aarch64-linux-gnu/libkea-dhcp_ddns.so.41 (0x0000ffffbe700000)
> > > >        libkea-stats.so.29 => /lib/aarch64-linux-gnu/libkea-stats.so.29 (0x0000ffffbe6c0000)
> > > >        libkea-dhcp++.so.74 => /lib/aarch64-linux-gnu/libkea-dhcp++.so.74 (0x0000ffffbe590000)
> > > >        libkea-hooks.so.78 => /lib/aarch64-linux-gnu/libkea-hooks.so.78 (0x0000ffffbe540000)
> > > >        libkea-mysql.so.53 => /lib/aarch64-linux-gnu/libkea-mysql.so.53 (0x0000ffffbe500000)
> > > >        libkea-pgsql.so.53 => /lib/aarch64-linux-gnu/libkea-pgsql.so.53 (0x0000ffffbe4b0000)
> > > >        libkea-database.so.48 => /lib/aarch64-linux-gnu/libkea-database.so.48 (0x0000ffffbe460000)
> > > >        libkea-cc.so.54 => /lib/aarch64-linux-gnu/libkea-cc.so.54 (0x0000ffffbe3f0000)
> > > >        libkea-asiolink.so.56 => /lib/aarch64-linux-gnu/libkea-asiolink.so.56 (0x0000ffffbe370000)
> > > >        libkea-cryptolink.so.38 => /lib/aarch64-linux-gnu/libkea-cryptolink.so.38 (0x0000ffffbe340000)
> > > >        libkea-log.so.48 => /lib/aarch64-linux-gnu/libkea-log.so.48 (0x0000ffffbe2f0000)
> > > >        libkea-util.so.68 => /lib/aarch64-linux-gnu/libkea-util.so.68 (0x0000ffffbe270000)
> > > >        libkea-exceptions.so.23 => /lib/aarch64-linux-gnu/libkea-exceptions.so.23 (0x0000ffffbe240000)
> > > >        libstdc++.so.6 => /lib/aarch64-linux-gnu/libstdc++.so.6 (0x0000ffffbdfb0000)
> > > >        libc.so.6 => /lib/aarch64-linux-gnu/libc.so.6 (0x0000ffffbddf0000)
> > > >        /lib/ld-linux-aarch64.so.1 (0x0000ffffbf280000)
> > > >        libgcc_s.so.1 => /lib/aarch64-linux-gnu/libgcc_s.so.1 (0x0000ffffbddb0000)
> > > >        libssl.so.3 => /lib/aarch64-linux-gnu/libssl.so.3 (0x0000ffffbdce0000)
> > > >        libcrypto.so.3 => /lib/aarch64-linux-gnu/libcrypto.so.3 (0x0000ffffbd860000)
> > > >        libresolv.so.2 => /lib/aarch64-linux-gnu/libresolv.so.2 (0x0000ffffbd830000)
> > > >        libz.so.1 => /lib/aarch64-linux-gnu/libz.so.1 (0x0000ffffbd7f0000)
> > > >        libzstd.so.1 => /lib/aarch64-linux-gnu/libzstd.so.1 (0x0000ffffbd730000)
> > > >        libgssapi_krb5.so.2 => /lib/aarch64-linux-gnu/libgssapi_krb5.so.2 (0x0000ffffbd6c0000)
> > > >        libldap.so.2 => /lib/aarch64-linux-gnu/libldap.so.2 (0x0000ffffbd640000)
> > > >        libkea-cfgclient.so.51 => /lib/aarch64-linux-gnu/libkea-cfgclient.so.51 (0x0000ffffbd5d0000)
> > > >        libkea-dns++.so.42 => /lib/aarch64-linux-gnu/libkea-dns++.so.42 (0x0000ffffbd4c0000)
> > > >        liblog4cplus-2.0.so.3 => /lib/aarch64-linux-gnu/liblog4cplus-2.0.so.3 (0x0000ffffbd420000)
> > > >        libm.so.6 => /lib/aarch64-linux-gnu/libm.so.6 (0x0000ffffbd370000)
> > > >        libkrb5.so.3 => /lib/aarch64-linux-gnu/libkrb5.so.3 (0x0000ffffbd290000)
> > > >        libk5crypto.so.3 => /lib/aarch64-linux-gnu/libk5crypto.so.3 (0x0000ffffbd240000)
> > > >        libcom_err.so.2 => /lib/aarch64-linux-gnu/libcom_err.so.2 (0x0000ffffbd210000)
> > > >        libkrb5support.so.0 => /lib/aarch64-linux-gnu/libkrb5support.so.0 (0x0000ffffbd1e0000)
> > > >        liblber.so.2 => /lib/aarch64-linux-gnu/liblber.so.2 (0x0000ffffbd1b0000)
> > > >        libsasl2.so.2 => /lib/aarch64-linux-gnu/libsasl2.so.2 (0x0000ffffbd170000)
> > > >        libgnutls.so.30 => /lib/aarch64-linux-gnu/libgnutls.so.30 (0x0000ffffbcf50000)
> > > >        libkea-http.so.56 => /lib/aarch64-linux-gnu/libkea-http.so.56 (0x0000ffffbce50000)
> > > >        libkeyutils.so.1 => /lib/aarch64-linux-gnu/libkeyutils.so.1 (0x0000ffffbce20000)
> > > >        libp11-kit.so.0 => /lib/aarch64-linux-gnu/libp11-kit.so.0 (0x0000ffffbcc50000)
> > > >        libidn2.so.0 => /lib/aarch64-linux-gnu/libidn2.so.0 (0x0000ffffbcc10000)
> > > >        libunistring.so.5 => /lib/aarch64-linux-gnu/libunistring.so.5 (0x0000ffffbca40000)
> > > >        libtasn1.so.6 => /lib/aarch64-linux-gnu/libtasn1.so.6 (0x0000ffffbca00000)
> > > >        libnettle.so.8 => /lib/aarch64-linux-gnu/libnettle.so.8 (0x0000ffffbc990000)
> > > >        libhogweed.so.6 => /lib/aarch64-linux-gnu/libhogweed.so.6 (0x0000ffffbc920000)
> > > >        libgmp.so.10 => /lib/aarch64-linux-gnu/libgmp.so.10 (0x0000ffffbc880000)
> > > >        libffi.so.8 => /lib/aarch64-linux-gnu/libffi.so.8 (0x0000ffffbc850000)
> > > > 
> > > > > On 02/20/2026 8:31 AM CET Razvan Becheriu <razvan at isc.org> wrote:
> > > > >  
> > > > >  
> > > > > please run stract -f -o outout ./kea-dhcp4 -c ... and attach the output.
> > > > >  
> > > > > (no filter on paths)Thank you,
> > > > >  
> > > > > Razvan
> > > > > 
> > > > > > ---------------------------------------------
> > > > > > From: Razvan <razvan at isc.org>
> > > > > > To: Kea <kea-users at lists.isc.org>
> > > > > > Date: Friday, 20 February 2026 9:27 AM EET
> > > > > > Subject: Re: [Kea-users] kea-dhcp4 service failing to start with 'cannot open shared object file'
> > > > > > 
> > > > > > what is this:
> > > > > >  
> > > > > > HOOKS_OPEN_ERROR failed to open hook library libdhcp_ha.so: libkea-dhcpsrv.so.14
> > > > > >  
> > > > > > why does it mention libkea-dhcpsrv.so ?
> > > > > >  
> > > > > > ldd on this lib then
> > > > > >  
> > > > > > 
> > > > > > > ---------------------------------------------
> > > > > > > From: duress <kea-users at lists.isc.org>
> > > > > > > To: Kea <kea-users at lists.isc.org>
> > > > > > > Cc: duress <duress at mailbox.org>
> > > > > > > Date: Friday, 20 February 2026 9:18 AM EET
> > > > > > > Subject: Re: [Kea-users] kea-dhcp4 service failing to start with 'cannot open shared object file'
> > > > > > > 
> > > > > > > I tried truncating the library path value to just the file base name:
> > > > > > >   <...>   "library": "libdhcp_ha.so",   <...>
> > > > > > > the changed path value was reflected in the error message I got after starting the service again, but it didn't seem to improve the issue at all:
> > > > > > >   Feb 19 23:08:23 diorite kea-dhcp4[4551]: ERROR HOOKS_OPEN_ERROR failed to open hook library libdhcp_ha.so: libkea-dhcpsrv.so.145: cannot open shared object file: No such file or directory
> > > > > > > 
> > > > > > > 
> > > > > > > I don't see any issues loading dependencies for libdhcp_ha.so, and there's an error as expected for the nonexistent file.
> > > > > > > 
> > > > > > > root at diorite:/etc/kea# ldd /usr/local/lib/aarch64-linux-gnu/kea/hooks/libdhcp_ha.so 
> > > > > > >         linux-vdso.so.1 (0x0000ffff83b55000)
> > > > > > >         libkea-dhcpsrv.so.145 => /usr/local/lib/aarch64-linux-gnu/libkea-dhcpsrv.so.145 (0x0000ffff83650000)
> > > > > > >         libkea-process.so.104 => /usr/local/lib/aarch64-linux-gnu/libkea-process.so.104 (0x0000ffff835e0000)
> > > > > > >         libkea-stats.so.64 => /usr/local/lib/aarch64-linux-gnu/libkea-stats.so.64 (0x0000ffff83590000)
> > > > > > >         libkea-config.so.96 => /usr/local/lib/aarch64-linux-gnu/libkea-config.so.96 (0x0000ffff834f0000)
> > > > > > >         libkea-http.so.99 => /usr/local/lib/aarch64-linux-gnu/libkea-http.so.99 (0x0000ffff833a0000)
> > > > > > >         libkea-dhcp.so.124 => /usr/local/lib/aarch64-linux-gnu/libkea-dhcp.so.124 (0x0000ffff831f0000)
> > > > > > >         libkea-hooks.so.134 => /usr/local/lib/aarch64-linux-gnu/libkea-hooks.so.134 (0x0000ffff83190000)
> > > > > > >         libkea-cc.so.95 => /usr/local/lib/aarch64-linux-gnu/libkea-cc.so.95 (0x0000ffff83110000)
> > > > > > >         libkea-asiolink.so.102 => /usr/local/lib/aarch64-linux-gnu/libkea-asiolink.so.102 (0x0000ffff83070000)
> > > > > > >         libkea-log.so.86 => /usr/local/lib/aarch64-linux-gnu/libkea-log.so.86 (0x0000ffff83020000)
> > > > > > >         libkea-util.so.116 => /usr/local/lib/aarch64-linux-gnu/libkea-util.so.116 (0x0000ffff82f80000)
> > > > > > >         libkea-exceptions.so.55 => /usr/local/lib/aarch64-linux-gnu/libkea-exceptions.so.55 (0x0000ffff82f50000)
> > > > > > >         libcrypto.so.3 => /lib/aarch64-linux-gnu/libcrypto.so.3 (0x0000ffff82ad0000)
> > > > > > >         libstdc++.so.6 => /lib/aarch64-linux-gnu/libstdc++.so.6 (0x0000ffff82840000)
> > > > > > >         libgcc_s.so.1 => /lib/aarch64-linux-gnu/libgcc_s.so.1 (0x0000ffff82800000)
> > > > > > >         libc.so.6 => /lib/aarch64-linux-gnu/libc.so.6 (0x0000ffff82640000)
> > > > > > >         /lib/ld-linux-aarch64.so.1 (0x0000ffff83b10000)
> > > > > > >         libkea-eval.so.97 => /usr/local/lib/aarch64-linux-gnu/libkea-eval.so.97 (0x0000ffff82590000)
> > > > > > >         libkea-dhcp_ddns.so.79 => /usr/local/lib/aarch64-linux-gnu/libkea-dhcp_ddns.so.79 (0x0000ffff82510000)
> > > > > > >         libkea-database.so.87 => /usr/local/lib/aarch64-linux-gnu/libkea-database.so.87 (0x0000ffff824c0000)
> > > > > > >         libkea-cryptolink.so.75 => /usr/local/lib/aarch64-linux-gnu/libkea-cryptolink.so.75 (0x0000ffff82490000)
> > > > > > >         libkea-cfgrpt.so.3 => /usr/local/lib/aarch64-linux-gnu/libkea-cfgrpt.so.3 (0x0000ffff82460000)
> > > > > > >         libssl.so.3 => /lib/aarch64-linux-gnu/libssl.so.3 (0x0000ffff82390000)
> > > > > > >         libkea-dns.so.83 => /usr/local/lib/aarch64-linux-gnu/libkea-dns.so.83 (0x0000ffff822a0000)
> > > > > > >         libkea-log-interprocess.so.4 => /usr/local/lib/aarch64-linux-gnu/libkea-log-interprocess.so.4 (0x0000ffff82270000)
> > > > > > >         liblog4cplus-2.0.so.3 => /lib/aarch64-linux-gnu/liblog4cplus-2.0.so.3 (0x0000ffff821d0000)
> > > > > > >         libm.so.6 => /lib/aarch64-linux-gnu/libm.so.6 (0x0000ffff82120000)
> > > > > > > 
> > > > > > > root at diorite:/etc/kea# ldd /usr/local/lib/aarch64-linux-gnu/kea/hooks/libdhcp_nosuchfile.so
> > > > > > > ldd: /usr/local/lib/aarch64-linux-gnu/kea/hooks/libdhcp_nosuchfile.so: No such file or directory
> > > > > > >  
> > > > > > > 
> > > > > > > > On 02/20/2026 6:44 AM CET Razvan Becheriu <razvan at isc.org> wrote:
> > > > > > > >  
> > > > > > > >  
> > > > > > > >  
> > > > > > > > can you run:
> > > > > > > > 
> > > > > > > > ldd /usr/local/lib/aarch64-linux-gnu/kea/hooks/libdhcp_nosuchfile.so
> > > > > > > > 
> > > > > > > > and
> > > > > > > > 
> > > > > > > > ldd /usr/local/lib/aarch64-linux-gnu/kea/hooks/libdhcp_ha.so
> > > > > > > > 
> > > > > > > > check that all dependencies can be resolved.
> > > > > > > > 
> > > > > > > > Regards,
> > > > > > > > Razvan
> > > > > > > > 
> > > > > > > >  
> > > > > > > > 
> > > > > > > > 
> > > > > > > > 
> > > > > > > > 
> > > > > > > > 
> > > > > > > > 
> > > > > > > > > ---------------------------------------------
> > > > > > > > > From: Razvan <razvan at isc.org>
> > > > > > > > > To: Kea <kea-users at lists.isc.org>
> > > > > > > > > Date: Friday, 20 February 2026 7:37 AM EET
> > > > > > > > > Subject: Re: [Kea-users] kea-dhcp4 service failing to start with 'cannot open shared object file'
> > > > > > > > > 
> > > > > > > > > Hi,
> > > > > > > > >  
> > > > > > > > > Kea can load hook libraries from default path just by specifying the hook name:
> > > > > > > > >  
> > > > > > > > > 
> > > > > > > > > "library": "libdhcp_nosuchfile.so"
> > > > > > > > > 
> > > > > > > > >  
> > > > > > > > > You can try this and see if it is any different.
> > > > > > > > > I'll try to replicate the issue using my rpi. Will let you know how it goes.
> > > > > > > > >  
> > > > > > > > > Regards,
> > > > > > > > > Razvan
> > > > > > > > >  
> > > > > > > > > 
> > > > > > > > > > ---------------------------------------------
> > > > > > > > > > From: Andrew <kea-users at lists.isc.org>
> > > > > > > > > > To: kea-users <kea-users at lists.isc.org>
> > > > > > > > > > Cc: Andrew <duress at mailbox.org>
> > > > > > > > > > Date: Friday, 20 February 2026 12:34 AM EET
> > > > > > > > > > Subject: [Kea-users] kea-dhcp4 service failing to start with 'cannot open shared object file'
> > > > > > > > > > 
> > > > > > > > > > Hi, I'm trying to set up a hot-standby redundant dhcp server for my home network and I'm having a real struggle trying to get the kea-dhcp4 daemon to find and load the libdhcp_ha.so library hook so that it can run in HA mode.
> > > > > > > > > > It's working great when I don't ask it to load the HA library hook, but I'm not having any luck with loading the .so. When I try to start the official ubuntu-package-provided kea-dhcp4-server systemd service, it reports the following:
> > > > > > > > > > ERROR HOOKS_OPEN_ERROR failed to open hook library /usr/local/lib/aarch64-linux-gnu/kea/hooks/libdhcp_nosuchfile.so: /usr/local/lib/aarch64-linux-gnu/kea/hooks/libdhcp_nosuchfile.so: cannot open shared object file: No such file or directory
> > > > > > > > > > 
> > > > > > > > > > I believe the issue being reported by the service in my system logs is actually something other than a failed read operation on the listed path, and I can explain my reasoning for drawing this conclusion.
> > > > > > > > > > I am hoping someone with the patience to read all this can suggest something I should try that I haven't thought of yet, or point out an error that I've made, that will help me get my HA pair online! thanks in advance for your attention.
> > > > > > > > > > 
> > > > > > > > > > Here's a list of the things I have tried so far to fix this issue in approximate chronological order:
> > > > > > > > > > * I manually confirmed that the file exists, by copying the full file name and path directly from the error message and pasting it into the terminal. the file exists.
> > > > > > > > > > 
> > > > > > > > > > * checked the unix file permissions on the .so itself (at /usr/local/lib/aarch64-linux-gnu/kea/hooks/libdhcp_sh.so), and also of each directory in that file path all the way down to /usr.
> > > > > > > > > > all have mode o+r set, and I have confirmed that I can read the contents of the file from a shell running as the kea user (_kea on my system). it is not a file permissions error.
> > > > > > > > > > 
> > > > > > > > > > * checked for enhanced access control subsystems. selinux is not installed on this server. apparmor is installed, and when I checked my kernel log I found that apparmor was reporting some blocked access to the library hook file in question.
> > > > > > > > > > I addressed these by updating the apparmor profile for /usr/sbin/kea-dhcp4, which required adding explicit permits for the r and m masks.
> > > > > > > > > > I made these changes by hand at first, then reset and used the aa-genprof tool from the official apparmor-utils package which generated the same set of changes I had applied by hand. These changes fixed the apparmor permissions conflict that was reported in my kernel log.
> > > > > > > > > > I confirmed that apparmor was no longer responsible for blocking access to the file by shutting off apparmor protections system-wide, which did not fix the issue.
> > > > > > > > > > 
> > > > > > > > > > * I copied the target .so file to a new directory under /etc/kea/lib/, and updated the service configs and the apparmor profile to point at this new file location.
> > > > > > > > > > The service continued to report that it cannot open the file because it does not exist, this time naming the new path under /etc/kea/lib/. I again copy-pasted the path from the error message to ensure I hadn't made any errors in my typing.
> > > > > > > > > > This didn't produce any positive results, so I reverted the configs to point to the default path to avoid unnecessary complication in further debugging.
> > > > > > > > > > 
> > > > > > > > > > * I found the presented troubleshooting advice in the official kea-dhcp4-server install guide from ISC, which indicates that in cases exactly like the one I was dealing with, one should run ldconfig with root permissions to update the linker cache. I did this.
> > > > > > > > > > I checked that the directory path containing the library was listed in a file under /etc/ld.so.conf.d/. I checked that /etc/ld.so.conf.d/ was correctly included in /etc/ld.so.conf. I ran ldconfig again as root while explicitly passing the directory immediately containing the .do file.
> > > > > > > > > > I ran ldconfig -p | grep to confirm that the desired shared object file was present in the cache, and that it was indexed at the expected file path, which it was.
> > > > > > > > > > Out of pure superstition, I even rebooted the server and checked again -- still present in the cache at the correct path.
> > > > > > > > > > 
> > > > > > > > > > * I opened the systemd service unit file to look for clues about any restricted filesystem access, system call capabilities, or anything else of this nature. I didn't find any in the unit file for this service.
> > > > > > > > > > 
> > > > > > > > > > * I explicitly added LD_LIBRARY_PATH=/usr/local/lib/aarch64-linux-gnu/kea/hooks to the service's environment variables exposed by systemd, then reloaded the systemd daemon to read the unit file changes. no help.
> > > > > > > > > > 
> > > > > > > > > > * I inserted strace into the unit file exec line to report any system calls related to the target file, reloaded the systemd daemon, and attempted to start the service again.
> > > > > > > > > > For comparison, I edited the service config at /etc/kea/kea-dhcp4.conf and the strace invocation in the service unit file to look for a known-bogus .so file in the same directory, reloaded the daemon again, and started the service again.
> > > > > > > > > > Comparing the strace output from the two calls, there is a clear difference between the system calls and results reported by strace. In the output from the service start with a known-bad file path, strace reports a single openat() system call to the expected file, which as expected returns -1 with errno ENOENT.
> > > > > > > > > > By comparison, the strace output from the service start with configs pointing to the real .so file which should be accessible to the service shows 6 system calls related to the .so file in question: openat(), read(), fstat(), mmap(), mmap(), close(). none of these system calls are shown to have errored with an associated errno code, or to have returned with a negative value.
> > > > > > > > > > At this point I'm not really sure where to go, I am intimidated by the prospect of trying to dive into the kea-dhcp codebase and figure out what is reporting an ENOENT-related error message when there (seemingly, to my eyes) doesn't seem to be any such error occurring.
> > > > > > > > > >  
> > > > > > > > > > I am using binaries and config files as provided from the Ubuntu repos (24.04, arm64), running on a raspberry pi 5, unmodified except as mentioned above and for miscellaneous config changes to /etc/kea/kea-dhcp4.conf to suit the needs of my network.
> > > > > > > > > > 
> > > > > > > > > > The debian packages I'm using are as follows:
> > > > > > > > > > ii  kea-admin                              2.4.1-3ubuntu0.1                        arm64        Administration utilities for Kea DHCP server
> > > > > > > > > > ii  kea-common                             2.4.1-3ubuntu0.1                        arm64        Common libraries for the Kea DHCP server
> > > > > > > > > > ii  kea-dev                                2.4.1-3ubuntu0.1                        arm64        Development headers for Kea DHCP server
> > > > > > > > > > ii  kea-dhcp4-server                       2.4.1-3ubuntu0.1                        arm64        IPv4 DHCP server
> > > > > > > > > > 
> > > > > > > > > > The kea version number reported by the binary that shipped with the above packages is 3.1.5
> > > > > > > > > > 
> > > > > > > > > > I am putting a copy of some relevant terminal buffers and config files up on my public webserver for reference, links to follow:
> > > > > > > > > > 
> > > > > > > > > > (config files doctored to target a nonexistent libdhcp_nosuchfile.so)
> > > > > > > > > > https://pdxlents.online/kea-dhcp4.conf.bad_configs.txt
> > > > > > > > > > https://pdxlents.online/systemd_unit_file.bad_configs.txt
> > > > > > > > > > https://pdxlents.online/terminal_log.bad_configs.txt
> > > > > > > > > > 
> > > > > > > > > > (config files targeting an actually existing libdhcp_ha.so)
> > > > > > > > > > https://pdxlents.online/kea-dhcp4.conf.good_configs.txt
> > > > > > > > > > https://pdxlents.online/terminal_log.good_configs.txt
> > > > > > > > > > https://pdxlents.online/systemd_unit_file.good_configs.txt
> > > > > > > > > > 
> > > > > > > > > > (version output from my server binary)
> > > > > > > > > > https://pdxlents.online/kea-dhcp4_-V.txt
> > > > > > > > > > 
> > > > > > > > > > Thanks again for reading, and for any advice or suggestions!
> > > > > > > > > > 
> > > > > > > > > 
> > > > > > > > --
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> > > > > > > > 
> > > > > > > 
> > > > > > 
> > > > > --
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> > > > > 
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> > > > > 
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