Re: Setup syncrepl on Redhat Fedora

[Daniel Qian <daniel@up247solution.com>]

On 11-06-07 3:37 PM, Howard Chu wrote:
> Daniel Qian wrote:
> > On 11-06-07 1:40 PM, Aaron Richton wrote:
> > > On Tue, 7 Jun 2011, Daniel Qian wrote:
> > >
> > > > Can anyone point out to me how I can add the module required to do
> > > > replication on the provider side? I will make a document if I am 
> > > > able to
> > > > set it up eventually.
> > >
> > > You can find examples of using olcModuleLoad to instruct back-config 
> > > to load
> > > the module in the OpenLDAP 2.4 Administrator's Guide. While the 
> > > directive is
> > > not overlay-specific, there is an example that uses syncprov in section
> > > 18.3.3, as well as code examples in the "tests" directory.
> > >
> > > If you're writing a document, it might be good to write back-config 
> > > examples
> > > suitable for some other section(s) of the Admin Guide (perhaps, if 
> > > you don't
> > > choose n-way multimaster, you can contribute whatever you use for your
> > > installation)?
> > I think I know what I need to get done based on the info I gathered 
> > on some
> > Ubuntu websites. I just have no idea how those settings fit into Redhat
> > layout. Correct me if I am wrong. Basically I need to load the module 
> > with
> > something like this :
> >
> > dn: cn=module{0},cn=config
> > objectClass: olcModuleList
> > cn: module{0}
> > olcModuleLoad: {0}back_bdb
> > *olcModuleLoad*: {1}*syncprov*
> > olcModulePath: /usr/lib64/openldap
> >
> > and then use the overlay with something like this:
> >
> > dn: olcOverlay={0}syncprov,*olcDatabase={1}bdb,cn=config*
> > objectClass: olcOverlayConfig
> > objectClass: olcConfig
> > objectClass: top
> > objectClass: olcSyncProvConfig
> > olcOverlay: {0}syncprov
> > olcSpCheckpoint: 100 10
> > olcSpSessionlog: 100
> >
> > But the question is in what files/folders I should put these 
> > settings? Fedora
> > has a few database ldif files whose settings get loaded into openldap 
> > upon
> > restart. Can I do the same with these settings as well?
>
> On Ubuntu you would leave slapd running and just do this (as root):
>
> # ldapmodify -H ldapi:// -Y EXTERNAL <<EOF
> dn: cn=module{0},cn=config
> changetype: modify
> add: olcModuleLoad
> olcModuleLoad: syncprov.la
> -
>
> dn: olcOverlay=syncprov,olcDatabase={1}bdb,cn=config
> changetype: add
> objectClass: olcSyncProvConfig
> olcOverlay: {0}syncprov
> olcSpCheckpoint: 100 10
> olcSpSessionlog: 100
> -
> EOF

Looks like I don't even have a module{0} in my setup. Here is all the 
DNs from " ldapsearch -LLL -b cn=config -D cn=admin,cn=config -W dn"

dn: cn=config
dn: cn=schema,cn=config
dn: cn={0}corba,cn=schema,cn=config
dn: cn={1}core,cn=schema,cn=config
dn: cn={2}cosine,cn=schema,cn=config
dn: cn={3}duaconf,cn=schema,cn=config
dn: cn={4}dyngroup,cn=schema,cn=config
dn: cn={5}inetorgperson,cn=schema,cn=config
dn: cn={6}java,cn=schema,cn=config
dn: cn={7}misc,cn=schema,cn=config
dn: cn={8}nis,cn=schema,cn=config
dn: cn={9}openldap,cn=schema,cn=config
dn: cn={10}ppolicy,cn=schema,cn=config
dn: cn={11}collective,cn=schema,cn=config
dn: olcDatabase={-1}frontend,cn=config
dn: olcDatabase={0}config,cn=config
dn: olcDatabase={1}bdb,cn=config
dn: olcDatabase={2}monitor,cn=config

Thanks,
Daniel