nss_ldap.conf: timelimit 10 bind_timelimit 5 bind_policy soft nss_connect_policy oneshot
I think every mail that come through my mail relay ask openldap about nss... How can I workaround this? 2011/4/5 Marco Pizzoli <[email protected]> > ---------- Forwarded message ---------- > From: "Marco Pizzoli" <[email protected]> > Date: 5 Apr 2011 14:29 > Subject: Re: Tuning openldap, nss_ldap and pam_ldap > To: "c0re" <[email protected]> > > Hi, > If it was the same problem that I had some time ago, it was due to idle > connections that I gold slapd to close after x seconds. > Check yours, and eventually set a keep alive parameter on your client, > nss_ldap. > > Regards > Marco > > On 5 Apr 2011 13:44, "c0re" <[email protected]> wrote: > > > > Hello openldap users! > > > > I've got Openldap 2.4.23 that used as authentication and authorization > server for about 40-50 servers. > > OS - FreeBSD 8.1. > > > > It's not heavy loaded. > > > > openldap# top -SP > > last pid: 45647; load averages: 0.15, 0.15, 0.07 > > up 81+22:29:21 15:18:57 > > 99 processes: 3 running, 80 sleeping, 16 waiting > > CPU 0: 0.7% user, 0.0% nice, 0.0% system, 0.0% interrupt, 99.3% idle > > CPU 1: 0.4% user, 0.0% nice, 0.7% system, 0.0% interrupt, 98.9% idle > > Mem: 79M Active, 1402M Inact, 379M Wired, 84M Cache, 213M Buf, 31M Free > > Swap: 4060M Total, 8K Used, 4060M Free > > > > PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU > COMMAND > > 11 root 2 171 ki31 0K 32K CPU0 0 3874.8 200.00% idle > > 4773 ldap 18 44 0 398M 53748K ucond 1 41.1H 0.00% slapd > > > > But on my servers sometimes I see in logs something like > > > > on FTP-server: > > Mar 25 21:55:32 someftp ftpd: nss_ldap: could not search LDAP server - > Server is unavailable > > > > Authentication works fine, no problems. But want to find out what can be > wrong. > > > > To understand this problem I installed ldap-stats utility and made it > run: > > > > /var/log/debug.log - it's half day openldap server usage log. > > > > openldap# ldap-stats -c 1000 /var/log/debug.log > > > > > > Report Generated on Tue Apr 5 15:16:47 2011 > > -------------------------------------------- > > Processed "/var/log/debug.log": Apr 5 00:00:00 - Apr 5 15:17:33 > > > > > > Operation totals > > ---------------- > > Total operations : 913845 > > Total connections : 101226 > > Total authentication failures : 2 > > Total binds : 99700 > > Total unbinds : 99181 > > Total searches : 714964 > > Total compares : 7 > > Total modifications : 0 > > Total modrdns : 0 > > Total additions : 0 > > Total deletions : 0 > > Unindexed attribute requests : 0 > > Operations per connection : 9.03 > > > > > > # Uses Filter > > ---------- ----------------------------------------------------------- > > 615504 (&(objectClass=posixAccount)(uid=mailer-daemon)) > > 90699 (&(objectClass=posixGroup)) > > 6833 (&(objectClass=posixAccount)(uid=root)) > > 2236 (&(objectClass=posixAccount)(uid=hiddenuser1)) > > 669 (&(objectClass=posixGroup)(memberUid=root)) > > 318 (&(objectClass=posixAccount)(uid=testacc)) > > 87 (&(objectClass=posixGroup)(memberUid=postfix)) > > 87 (&(objectClass=posixAccount)(uid=postfix)) > > 81 (objectClass=posixAccount) > > 68 (&(objectClass=posixAccount)(uid=debian-exim)) > > 68 (&(objectClass=posixGroup)(memberUid=Debian-exim)) > > 39 (&(objectClass=posixAccount)(uid=normaluser)) > > 34 (&(objectClass=posixAccount)(uidNumber=7333)) > > 30 (&(objectClass=posixGroup)(memberUid=hiddenuser1)) > > 29 (&(objectClass=posixGroup)(memberUid=chelovek)) > > 29 (&(objectClass=posixAccount)(uid=chelovek)) > > 27 (&(objectClass=posixAccount)(uid=user0)) > > 23 (&(objectClass=posixAccount)(uid=nobody)) > > 21 (&(objectClass=posixAccount)(uid=user1)) > > 18 (&(objectClass=posixAccount)(uid=user2)) > > 16 (&(objectClass=posixAccount)(uid=user3)) > > 15 (&(objectClass=posixAccount)(uid=user4)) > > 12 (&(objectClass=posixAccount)(uid=user5)) > > 11 (&(objectClass=posixAccount)(uidNumber=7330)) > > 10 (&(objectClass=posixAccount)(uid=user15)) > > 9 (&(objectClass=posixAccount)(uid=user16)) > > 8 (&(objectClass=posixAccount)(uidNumber=7333)) > > 6 (&(objectClass=posixAccount)(uid=user6)) > > 5 (&(objectClass=posixAccount)(uid=user7)) > > 5 (cn=defaults) > > 4 (&(objectClass=posixAccount)(uidNumber=7228)) > > 4 (&(objectClass=shadowAccount)(uid=user1)) > > 4 (&(objectClass=posixAccount)(uid=user9)) > > 4 (&(objectClass=posixAccount)(uid=user10)) > > 4 (&(objectClass=posixAccount)(uid=user11)) > > 3 (&(objectClass=posixAccount)(uid=user12)) > > 3 (&(objectClass=posixAccount)(uid=user13)) > > 3 (&(objectClass=posixAccount)(uid=user14)) > > ............... > > and MANY others that has 1 use in this stats. > > I think this many queries from mail relay server. > > * user1 and etc - just hidden real users. > > > > What can I do to tune nss? Can you point me in a right direction? Do not > know what to look at. > > If you need any additional information, logs and etc - I'll provide it. > > > > Thanks in advance! > > >
