In my current project, we had the issue that the logs were flooded with CWWIM4564I warnings like the one below

[10/1/18 18:36:21:401 CEST] 00000443 LdapConnectio I getDirContext CWWIM4564I  The user registry is now connected to 'ldaps://' LDAP Server. Or, the user registry is able to ping the LDAP server successfully.

and the ISC was very unresponsive when switching to the list of servers or the list of nodes (in an environment with 59 application servers on 13 different nodes).
Even with the workaround found by Dave Hay​, the warnings were flooding the logs (but only for the secondary Active Directory LDAP, the IBM Domino LDAP just worked).

What we did was twofold. As the context pool for the Domino based repository was already enabled, we also activated the context pool for the Active Directory repository, which cut down the number of CWWIM4564I warnings dramatically.

In addition to that, we also followed the steps Martijn de Jong outlined in his blog entry. As the transport memory size was already set to 200 and the IBM_CS_WIRE_FORMAT_VERSION was also already set to 6.1.0, we just had to add the IBM_CS_HAM_PROTOCOL_VERSION custom coregroup property with a value of

With those two changes and a reboot, we experienced a dramatic increase in performance when using the ISC and the logs were a lot easier to read without the CWWIM4564I warnings.


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If you enable round-trip editing for files according to the IBM Connections documentation (I have no idea, why this is still not on by default), in theory, the following (IMHO very useless) popup should show up only once.

Unfortunately, this is not the case. This rather useless dialog will pop up several times/quite often, even if the user selects "Don't show this message again".

Fortunately, Wickerl and I found a way to disable this useless popup once and for all via an simple IHS rewrite rule in the httpd.conf:

# Enable rewriting engine
RewriteEngine On

# Suppress RoundTripEditing-Dialog

RewriteRule .* - []

This sets the cookie "" via the [CO], or [cookie] flag of mod_rewrite, during each request, thereby disabling the "Edit on Desktop" prompt for good.


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The IBM Knowledge Center has a nice chapter on "Informing users of a migration or update". You basically redirect everyone to a static maintenance page unless they arrive from a certain IP adress (so you as an administrator can still work):

LoadModule rewrite_module modules/
RewriteEngine on

RewriteCond %{REMOTE_HOST} !^

RewriteCond %{REMOTE_HOST} !^

RewriteCond %{REMOTE_HOST} !^

RewriteRule !^/upgrading.htm$ /upgrading.htm [L,R=500]

ErrorDocument 500 /upgrading.htm

Unfortunately, in a current customer project, that did not work for me, as this
  • blocked the healtcheck from the Load Balancer (LB) in front of Connections as well, which resulted in the requests not getting forwarded to the IHS
  • "%{REMOTE_HOST}" always being the IP of the load balancer

So I had to modify the statement a little bit:
LoadModule rewrite_module modules/
RewriteEngine on

RewriteCond %{REMOTE_HOST} !^

# Allow traffic from the Healthcheck host aka. Load Balancer ...

RewriteCond %{REMOTE_HOST} !^

RewriteCond %{REMOTE_HOST} !^

# Check the "X-Forwarded-For" http header for the original IP of the requester

# and block if not certain IP (add more lines for more IPs)

RewriteCond %{HTTP:X-Forwarded-For} !^

RewriteCond %{HTTP:X-Forwarded-For} !^
RewriteRule !^/upgrading.htm$ /upgrading.htm [L,R=500]

ErrorDocument 500 /upgrading.htm


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As you probably know, IBM Notes supports "Notes-URLs" in the form of " notes://servername/applicationName?OpenApplication"; (eg.: Notes:///C1257802004BEEDD/CB71294887486E9CC125780E0034017E/D2060AA524CE62F5C125820B00371A6B). A lot of my IBM Connections customers are also Notes users so they also want to store Notes-URLs inside IBM Connections Wikis, Bookmarks, Forums, etc.

Unfortunately, with IBM Connections 6.0 CR1, IBM introduced a new white-listing mechanism for Active Content Filtering. This is fine, as it provides additional security, but is bad, as it breaks a few things. Additionally, the release notes only mention that the new filtering works "by only allowing uploads of content that meets your criteria" and does not mention, that the protocol part of an URL also gets checked. And that part prohibits the possibility to add Notes-URLs to IBM Connections, as you can see in the screenshot below:

Fortunately, this new feature can be modified to allow additional URL protocols, so there is no need to reactivate the legacy active content filters. Let me sum up the necessary steps from the slightly confusing ;) documentation.

1. Navigate to the "extern" directory of your LotusConnections-config directory. eg cd F:\IBM\WebSphere\AppServer\profiles\ic-dmgr01\config\cells\ic-cell\LotusConnections-config\extern

2. Copy the "ojhs-whitelist-default.xml" and change "default" to a string of your liking ("wyd" in my example). eg:  copy ojhs-whitelist-default.xml ojhs-whitelist-wyd.xml

3. Open "ojhs-whitelist-wyd.xml" in a proper editor and find the "allowUrlProtocols" section. Within that, add the notes protocol. Save and close the file. Afterwards, the section should look like this:
<protocol name="ftp" />
<protocol name="tel" />
<protocol name="notes" />
</ allowUrlProtocols>

4. Copy the "acp-configkey__default.xml" and change "default" to a string of your liking ("wyd" in my example). eg:  copy acp-configkey__default.xml acp-configkey__wyd.xml

5. Open "acp-configkey__wyd.xml" in a proper editor and find the "defaultKey" parameter. Replace "default" with the string you chose before ("wyd" in my case). Save and close the file. Afterwards, the parameter section should look like this:
<param value="defaultKey= wyd" />

6. Start the wsadmin client and check out the LotusConnections-config.xml file. Open that file in a proper editor.

7. Now find EVERY " sloc:serviceReference"; entry you want to modify (Wikis, Forums, Dogear, ...) and change the acf_config_file attribute for EACH ENTRY from "acp-configkey__default.xml" to the filename you specified in step 4 (in my case "acp-configkey__wyd.xml"). This should look like this for Wikis and Dogear:
  < sloc:serviceReference acf_config_file="acp-configkey__wyd.xml" bootstrapHost="admin_replace" bootstrapPort="admin_replace" clusterName="ICCluster" enabled="true" person_card_service_name_js_eval="generalrs.label.personcard.wikislink" person_card_service_url_pattern="/home/search?uid={userid}&name={displayName}" serviceName="wikis" ssl_enabled="true" >
 < sloc:serviceReference acf_config_file="acp-configkey__wyd.xml" bootstrapHost="admin_replace" bootstrapPort="admin_replace" clusterName="ICCluster" enabled="true" person_card_service_name_js_eval="generalrs.label_personcard_dogearlink" person_card_service_url_pattern="/html?userid={userid}" serviceName="dogear" ssl_enabled="true">

8.  Check in the modified LotusConnections-config.xml file.

9.  Restart Common and the applications you modified the configuration for in step 7

10. Profit!


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If you want to use the IBM Domino Webserver to offer a few files for download from the file system and not a database, you will face the issue that Domino does not allow "Directory Browsing" by default.

This would force you to either create a new index file or similar, every time you add or remove a file or send an explicit list of files to the person that should download the files.

Fortunately, there is an .INI parameter for that! Add

to your notes.ini, Server Configuration Document or directly to the server console via "set config", restart the webserver and voila, directory browsing is enabled:

Be aware, that is a server wide setting and applies to all Web Sites/Virtual hosts/... and may cause severe security issues!

Source: IBM Notes and Domino 9.0 Social Edition Forum - How to enable DOMINO 9.01 HTTP directory browsing ?


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During the installation of IBM Connections Touchpoint for a customer a stumbled upon an "issue" that is not (yet) covered in the documentation but is/will be an issue in the "real world™": "ssl-only environments" (properly: "tls-only"). The Connections documentation has a whole chapter called "Forcing traffic to be sent over an encrypted connection" on how to redirect all HTTP traffic to Connections to HTTPS (which you should do in times like these).

Unfortunately, as I learned the hard way, Touchpoint can't handle those redirects. What happens is the following error in the WAS logs:

 [17/04/XX 10:09:31:659 BST] 000000a1 SystemErr     R   [WebContainer : 5] ERROR - Failed to put image to Profiles API @ '': Moved Permanently
[17/04/XX 10:09:31:659 BST] 000000a1 SystemErr     R   org.apache.http.client.HttpResponseException: Moved Permanently

The error can also be found in the IHS logs.

What this basically means is that Touchpoint doesn't handle the redirect we set up on the IHS. So we have to tell Touchpoint to do it's work via https per default.

This is actually quite simple. All you have to do is add a few custom properties to the Ressource Environment Entry "REE Touchpoint Config".
Log into the ISC and navigate to "Resources -> Resource Environment -> Resource Environment Entries"

and select the "RRE Touchpoint Config " entry. Once you have that open, click "Custom Properties".

On that screen you should already have one entry for "" from the installation. You now need to add the following values in order to force Touchpoint to talk with Connections via https:  https    443

This should look something like this:

Now restart the WAS application server(s) (restarting the Touchpoint app was not enough in my case) and everything should just work.


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I had the pleasure to install an IBM Connections pilot for a customer together with Etienne Döhler a few weeks back.

One of the obstacles we faced during the install was a rather sealed off RedHat GNU/Linux box, that had only port 22 (ssh) open to the PCs we were using for the install (fortunately with X11 installed and X11 forwarding allowed). As the customer wanted the IBM HTTP Server (IHS) to listen on 8080/8443 for the communication with the already existing Reverse Proxy (RP, managed by Lufthansa) they also opened that port, but only for connections with the RP.

One of the "best practices" I try to convey at Social Connections is that you should always test your install without a Reverse Proxy, Load Balancer, ... and make sure everything works before you introduce the additional complexity of a Reverse Proxy or similar.

So how to connect to the IBM Solutions Console and the IHS when the only open port to that machine is SSH (22)? Well, SSH and its config file to the rescue!

SSH has a nifty feature called port forwarding. This allows you to forward local ports to a remote machine. Together with some creative hosts file editing, you can use your local browser to access the remote machine as if the necessary ports were open on the remote machine.

We needed the following URLs to work:


So the first thing to do was to modify the hosts file to point to    localhost

And then create an entry in ~/.ssh/config with the local port forwarding and further settings to spare us some typing:

Host customername 

        # Specify destination host by IP, as we have an hosts entry for the name
        Port 22
        User zaphod
        IdentityFile ~/.ssh/customername_rsa
        Compression no
        AddressFamily inet
        ForwardX11 yes
        LocalForward 9043
        LocalForward 8080
        LocalForward 8443
        PreferredAuthentications publickey,keyboard-interactive,password

So with a simple "ssh customername" I can now connect to the GNU/Linux machine with the key I created to that purpose and have X11 forwarding as well as local port forwarding activated. And as long as that ssh session is open, I can now access the ISC and the IHS in my local browser as if 9043, 8080 and 8443 were open network ports on the remote box.

And it was a good thing that we were able to test directly with the IHS and verify that everything was working as expected, as the RP had disabled SSLv3, which broke the IBM Connections Widgets at that time. But that is a story for another blog entry.

For more SSH voodoo, see my "Was, SSH kann auch das?" talk at the Grazer Linuxwochen 2013 (in german).


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If you need to open a VPN connections to Softlayers private network, you should do this via a browser, as described at From what I experienced, with Linux you would need to run a browser as root to follow the instructions.

Fortunately, there is another way: The command-line client. Using that is rather straight forward (except one gotcha).
1.        Download the VPN software from
cd ~/Downloads

2.        Rename the zip file to bin (I tried to uncompress it, which failed miserably)
mv ArrayNetworksL3VPN_LINUX.bin
3.        Make the file executable
chmod 777 ArrayNetworksL3VPN_LINUX.bin
4.        Execute it as root
sudo ./ArrayNetworksL3VPN_LINUX.bin

And your are done.

Now you can open up a VPN connections to Softlayer from the comfort of your command-line:
sudo /usr/local/array_vpn/array_vpnc -hostname -username [YOUR SOFTLAYER USERNAME] -passwd '[SUPER_SECRET PASSWORD]' &

Which should give you a

message back.

A quick "ifconfig tun[x]" should also show a valid 10.a.b.c Softlayer IP adresss.
ifconfig tun1 
tun1      Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  
        inet addr:  P-t-P:  Mask:
        RX packets:1 errors:0 dropped:0 overruns:0 frame:0
        TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
        collisions:0 txqueuelen:500
        RX bytes:20 (20.0 B)  TX bytes:0 (0.0 B)

If you can also successfully ping or your server's private address,  you are successfully connected.
ping -c 3 
PING ( 56(84) bytes of data.
64 bytes from icmp_seq=1 ttl=253 time=35t4.6 ms
64 bytes from icmp_seq=2 ttl=253 time=34.9 ms
64 bytes from icmp_seq=3 ttl=253 time=35.1 ms

--- ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 34.605/34.886/35.148/0.222 ms

Pro-tip: Use the VPN server of the Softlayer datacenter where your machines reside.  Apparently, there exists at least one Softlayer VPN Server for every datacenter:
  • for Dallas, Texas, USA
  • for Seattle, Washington, USA
  • for Washington, D.C., USA
  • for Amsterdam, The Netherlands, Europe
  • and so on ...

I must say, that I was pleasantly surprised (again) by Softlayers support. I had a correct answer to my question in under 5 minutes after opening the ticket.


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Join subject matter experts from the IBM Domino team for an Ask the Experts Q&A session titled "Managing Domino - Admin Client, AdminP, and Policies." We'll begin the session with a short demo or presentation but the main focus of the session is Q&A. So bring your questions!

Topic: Managing Domino - Admin Client, AdminP, and Policies
Date: Tuesday, November 4, 2014
Time: 11:00 AM EST (15:00 UTC/GMT, UTC-4 hours) for 60 minutes
Webcast URL:
Webcast Password:  webcast

For a list of world-wide phone numbers, the phone passcode, and an iCalendar (.ics) file for this session, click here:


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Join John Ballam from the Domino team as he discusses installation, setup, and going into production with your Lotus Protector for Mail Security (LPMS) server.

After a presentation, attendees will be given an opportunity to ask questions to the technical experts we will have on hand. Throughout the event, attendees will also be encouraged to comment or ask questions in the IBM SmartCloud Meeting Web chat.

For a list of world-wide phone numbers, the phone passcode, and an iCalendar (.ics) file for this session, visit


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This is the Blog of Martin Leyrer, currently employed as IT-Specialist at IBM Austria - IBM Software Group, IBM Collaboration Solutions.

The postings on this site are my own and do not represent the positions, strategies or opinions of any former, current or future employer of mine.