Actually I figured this out... not completely sure why it happens on my
system, and I found a few references to it happening for others via
google as well... so it is not a one off issue per se.
One odd quirk is that my install of net-snmp defaults on Debian 10
/usr/local/sbin, not /usr/sbin/, I ran ./configure with no added options
for not sure why this delta emerges. But this is only an issue for the
unit file (systemd) default file that needs to be tweaked for the
different path. It is this difference in path that resulted that is at
the heart of the issue. But I digress, to fix the 'not found' (they do
exist, just not found) libraries issue there are two options to that I
have found that work.
Option 1:
Edit the hidden bashrc file for the user that will run snmpd, add
the the following line...
export LD_LIBRARY_PATH=/usr/local/lib
Logout and login to invoke bashrc execution.
Option 2, which I like better is to do the following...
Check for or Create /etc/ld.so.conf.d/libc.conf. Some systems I
reviewed had libc.conf with the needed path, some did not. One google
reference created a local.conf file with the same path as well.
# nano /etc/ld.so.conf.d/libc.conf
/usr/local/lib
Then run ldconfig
After the above changes...
# ldd /usr/local/sbin/snmpd
linux-gate.so.1 (0xb7fa8000)
libnetsnmpagent.so.40 => /usr/local/lib/libnetsnmpagent.so.40
(0xb7f1c000)
libnetsnmpmibs.so.40 => /usr/local/lib/libnetsnmpmibs.so.40
(0xb7cc7000)
libnetsnmp.so.40 => /usr/local/lib/libnetsnmp.so.40 (0xb7be5000)
libperl.so.5.28 => /usr/lib/i386-linux-gnu/libperl.so.5.28
(0xb787d000)
libdl.so.2 => /lib/i386-linux-gnu/libdl.so.2 (0xb7877000)
libpthread.so.0 => /lib/i386-linux-gnu/libpthread.so.0 (0xb7856000)
libc.so.6 => /lib/i386-linux-gnu/libc.so.6 (0xb7678000)
libcrypt.so.1 => /lib/i386-linux-gnu/libcrypt.so.1 (0xb7645000)
libm.so.6 => /lib/i386-linux-gnu/libm.so.6 (0xb753f000)
/lib/ld-linux.so.2 (0xb7faa000)
The libraries that were not found are now found! This should let snmpd
fine the libraries as expected, via direct run or via systemd unit file
for same. Providing you update the unit file for the path delta as
noted above.Just for reference, the tweaked unit file is below... For
my test, I did not create a specific user, used root. This is not a
best practice, the current Debian 10 package (based on 5.7.1) uses
'Debian-snmp' as execution user, you should consider doing this if
moving to 5.9 when compiled from source.
# cat /lib/systemd/system/snmpd.service
[Unit]
Description=Simple Network Management Protocol (SNMP) daemon.
After=syslog.target network.target
[Service]
Type=simple
ExecStartPre=/bin/mkdir -p /var/run/agentx
#ExecStart=/usr/local/sbin/snmpd -LS6d -Lf /dev/null -u Debian-snmp -g
Debian-snmp -I -smux,mteTrigger,mteTriggerConf -f -p /run/snmpd.pid
ExecStart=/usr/local/sbin/snmpd -LS6d -Lf /dev/null -I
-smux,mteTrigger,mteTriggerConf -f -p /run/snmpd.pid
ExecReload=/bin/kill -HUP $MAINPID
[Install]
WantedBy=multi-user.target
-DD
On 5/13/2021 20:25, Bart Van Assche wrote:
I can't reproduce this. If I build and install Net-SNMP from the v5.9
branch, the installed binary runs fine:
|./configure --enable-developer --enable-ipv6
--prefix=/home/bart/net-snmp-V5-9-patches --with-cflags=-g -O1 -pipe
-DNETSNMP_USE_ASSERT -D_FORTIFY_SOURCE=2 -fno-strict-aliasing
-fno-inline -fno-inline-functions -fno-inline-functions- called-once
-fno-early-inlining -Wno-inline -fno-inline-small-functions -DNETSN
MP_USE_ASSERT --with-defaults --enable-new-features
--with-perl-modules --with- default-snmp-version=2
--with-transports=IPX STD DTLSUDP TLSTCP --with-security -modules=usm
tsm --with-mib-modules=agent/extend examples/data_set examples/del
ayed_instance examples/example examples/notification
examples/scalar_int exampl es/ucdDemoPublic examples/watched smux
disman/event disman/expression disman/mt eEventNotificationTable
disman/mteEventTable disman/mteObjectsTable disman/mteT
riggerBooleanTable disman/mteTriggerDeltaTable
disman/mteTriggerExistenceTable disman/mteTriggerTable
disman/mteTriggerThresholdTable disman/nslookup-mib dism an/ping-mib
disman/schedule disman/traceroute-mib examples/netSnmpHostsTable ha
rdware/cpu hardware/memory host ip-forward-mib
ip-mib/inetNetToMediaTable ip-mi b/ipv4InterfaceTable
ip-mib/ipv6InterfaceTable mibII/mta_sendmail misc/ipfwacc
snmp-notification-mib tcp-mib testhandler tunnel ucd-snmp/diskio
ucd-snmp/exten sible udp-mib Rmon Rmon/alarm snmp-usm-dh-objects-mib
tlstm-mib tsm-mib --with- ldflags=-L/usr/local/lib CFLAGS=-g -O1 -pipe
-DNETSNMP_USE_ASSERT -D_FORTIFY_SO URCE=2 -fno-strict-aliasing
-fno-inline -fno-inline-functions -fno-inline-func tions-called-once
-fno-early-inlining -Wno-inline -fno-inline-small-functions C
PPFLAGS=-g -O1 -pipe -DNETSNMP_USE_ASSERT -D_FORTIFY_SOURCE=2
-fno-strict-aliasing -fno-inline -fno-inline-functions
-fno-inline-functions-called-once -fno-early-inlining -Wno-inline
-fno-inline-small-functions LDFLAGS= && make && make install |
From the installation directory (/home/bart/net-snmp-V5-9-patches):
|$ ldd sbin/snmpd linux-vdso.so.1 (0x00007ffd7f3d8000)
libnetsnmpagent.so.40 =>
/home/bart/net-snmp-V5-9-patches/lib/libnetsnmpagent.so.40
(0x00007fd958ca7000) libnetsnmpmibs.so.40 =>
/home/bart/net-snmp-V5-9-patches/lib/libnetsnmpmibs.so.40
(0x00007fd95899d000) libnetsnmp.so.40 =>
/home/bart/net-snmp-V5-9-patches/lib/libnetsnmp.so.40
(0x00007fd9588c0000) libpthread.so.0 =>
/lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fd958897000) libc.so.6
=> /lib/x86_64-linux-gnu/libc.so.6 (0x00007fd9586d2000)
libperl.so.5.32 => /lib/x86_64-linux-gnu/libperl.so.5.32
(0x00007fd958344000) libcrypto.so.1.1 =>
/lib/x86_64-linux-gnu/libcrypto.so.1.1 (0x00007fd95804e000)
libpci.so.3 => /lib/x86_64-linux-gnu/libpci.so.3 (0x00007fd95803d000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fd958037000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fd957ef3000)
libssl.so.1.1 => /lib/x86_64-linux-gnu/libssl.so.1.1
(0x00007fd957e60000) /lib64/ld-linux-x86-64.so.2 (0x00007fd958d27000)
libcrypt.so.1 => /lib/x86_64-linux-gnu/libcrypt.so.1
(0x00007fd957e25000) libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1
(0x00007fd957e06000) libresolv.so.2 =>
/lib/x86_64-linux-gnu/libresolv.so.2 (0x00007fd957dec000) libudev.so.1
=> /lib/x86_64-linux-gnu/libudev.so.1 (0x00007fd957dc4000) $
./sbin/snmpd -f -Lo -c ~/software/tools/snmpd.conf -r :1161 [ snmpd
runs fine ] |
—
You are receiving this because you authored the thread.
Reply to this email directly, view it on GitHub
<https://github.com/net-snmp/net-snmp/issues/289#issuecomment-840979684>,
or unsubscribe
<https://github.com/notifications/unsubscribe-auth/AALK3TMVCJFBCYSG3F6L5DTTNSJYZANCNFSM443BOCOQ>.
_______________________________________________
Net-snmp-users mailing list
Net-snmp-users@lists.sourceforge.net
Please see the following page to unsubscribe or change other options:
https://lists.sourceforge.net/lists/listinfo/net-snmp-users
