Best and worst practices deploying IBM Connections

Toronto, June 6-7 2016
Best and Worst Practices
Deploying
IBM Connections
Christoph Stoettner
Nico Meisenzahl

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Christoph Stoettner
• Senior Consultant – panagenda
• IBM Notes / Domino since 1999
• IBM Connections since version 2.5 / 2009
• Many years of experience in:
• Migrations
• Administration und installs
• Performance analysis
• Joined panagenda in 2015 focusing in:
• IBM Connections deployment und
optimization
• IBM Connections monitoring
• Husband of one & father of two, Bavarian
3
 @stoeps
 linkedin.com/in/christophstoettner
 www.stoeps.de
 christophstoettner
 +49 173 8588719
christoph.stoettner@panagenda.com

Nico Meisenzahl
• Consultant at panagenda
• IBM Notes / Domino since 2008
• IBM Connections since version 3.0 / 2010
• Many years of experience in:
• Consulting
• Migrations & Administration
• Joined panagenda in 2016 focusing in:
• IBM Connections Consulting
• ICS deployment & optimization
4
 @nmeisenzahl
 linkedin.com/in/nicomeisenzahl
 meisenzahl.org
 nico.meisenzahl
 +49 170 7355081
nico.meisenzahl@panagenda.com

IBM Connections Request Flow
5
Databases
WebSphere Application Server
IBM HTTP ServerWebSphere Plugins
Application DBsPEOPLEDB
LDAP Server
TDI
Forward to Application Server and
Port
(Load balancing and Failover)
Redirect
unknown
URL
Upload and Download of
Files, Attachments
Common:
Access Customization,
Webressources
Read and Write
Authentication
Users / Groups
Reads Userdata for Profiles
Create, Update,
Delete and Inactivate
Profiles
Shared
Directory
Link
to
Attachments
Profile changes synchronize to
Membertables through JMS Queue
Optional:
Direct Access
to Attachments

Installation & Requirements

System Requirements
• Regularly check requirement
documents
• All versions
• http://short.stoeps.de/vwzrv
• IBM Connections 5
• http://short.stoeps.de/mspdi
• IBM Connections 5.5
• http://short.stoeps.de/cnx55sysreq
• Check all notes, Download PDF
Connections 5.0 CR3
Connections 5.5
Connections 5.5 CR1
7

System Requirements
8
• Be careful with installation documents
• Sometimes wrong dependencies mentioned
• Supported statement does not mean it’s licensed
• http://www-01.ibm.com/support/docview.wss?uid=swg21683118
• Supported: DB2 10.5 FP4 ->
but Connections 5.0 License Agreement:
• You will not find a DB2 10.5 license in your PA Account

Sizing
• Be prepared for future growth
• Do not overact
• A few hundred users doesn’t mean you need a large deployment
• Not fans of multi-instance database machines
• If I run in database performance issues I split the databases to
different machines
• Performance tuning guide
• Multi-instance is best practice, if you have enough resources
Performance Tuning Guide 5CR1 – page 10
9

Sizing
• A word on requirements
• 4 | 8 GB memory minimum is often too less,
better to start with 10 or 12 GB
• Memory swapping kills all tuning efforts
• CPU cores
• 2 cores minimum only on small deployments
• Thumb rule: calculate one core for each jvm
(expensive with PVU license)
• Disk
• Using network storage or virtualized servers
• Easier to extend
Connections 5.0Connections 5.5
10

Prepare for your Installation
• Download all software packages
• Check System Requirements!
• Paths shouldn't contain spaces
• No spaces in source and destination folders
• Use a dedicated administration user
• Especially on Windows avoid users with applied group policies
• If possible disable User Account Control (UAC)
• Run all Installer and Scripts with option “Run As Administrator”
11

Security Settings
• During installation you should disable all "Security"
Software
• SELinux
• AppArmor
• Antivirus
• Firewalls
• Self developed scripts and extensions
• It's not fun, when a script deletes databases, because
you forgot to add the directory to the script exclusions
12

Operating System specific settings -
Linux
13
• Different operating systems need special settings
• Always use the operating system where you have the best
skills
• Linux
• /etc/security/limits.conf
• Increase nofile and nproc (see tuning guides)
• Example from tuning guide
• Default nproc (max number of processes) for user root 2047
• You can extend the nproc with ulimit –p up to 16384 (e.g. within .bashrc
or .profile)
• Or set soft and hard limit to equal sizes, avoids additional changes with
profile
root soft nproc 2047
root hardnproc 16384

Operating System specific settings -
Windows
14
• Always use UNC path as Shared
Directory
• Easier to add additional WebSphere Nodes
for failover or load balancing
• WebSphere services
• Technical user account
• Enable “Password never expires”
• Disable “Must change password on next
login”
• Default: LocalSystem has no network access
• Check access rights on Shared
Directory

Network
• Name lookup / DNS
• All servers must be resolvable (hosts is not a suitable workaround)
• Knowing the protocol
• Avoid Round Robin
• No Authentication failover in WebSphere with Round Robin!
• Network storage (file locking is important)
• NFS v4 / SMB|CIFS
• No DFS
• Reverse Proxies / Proxies
• Always test your deployment without proxies
• Activate after successful testing
15

Register WAS as a service
• Register WAS as a service
• Services for Deployment Manager and
NodeAgent(s)
• wasservice.bat|sh
• Map service to a technical user
• any Active Directory User is possible
• allowed to read / write network share with Shared
Content
• Service can parse commands to nodeagent
• -stopArgs "<NA commands>"
• Configure monitoring policy (if required)
16

WasService.bat|sh – Register service
17
cd D:IBMCNXWebSphereAppServerbin
WASService.exe
-add CnxNode01
-serverNamenodeagent
-profilePathd:ibmcnxwebsphereappserverprofilesCNXNode01
-stopArgs "-username wasadmin-passwordpassword-stopservers"
-userid cnxtec -passwordpassword
-encodeParams
-restart true
-startType automatic
parsed to nodeAgent
stops AppServer

Monitoring Policy
• Each Application Server
• Change Node restart state to
"RUNNING"
• Large deployment on Windows
• Default timeout for service shutdown
= 20 seconds
• Increase Value at:
HKEY_Local_Machine:
SYSTEMCurrentControlSetControl
WaitToKillServiceTimeout
• Must set this to STOPPED before
performing updates
• Or use syncNode.bat|shafter applying the update
18

Directories & Synching
• Prepare your LDAP
• Better data within LDAP → better Profiles
• Switching Authentication directories is possible
• Need some planning
• Dependencies
• Quality of LDAP data
• Plans to activate SPNEGO
• Domino Mail Integration
19

Federated Repositories Best Practice
• Leave the file based wasadmin with
WebSphere Application Server
• Fallback if LDAP Bind Credentials changed
• Solving problems with
Federated Repositories
• Default does not allow this
(you have to disable security to
change configuration)
Check this box
20

Logs – adjust language WebSphere
• Change log language to English (IBM will love you for this)
• WebSphere
Add "-Duser.language=en –Duser.region=US" to Generic JVM
arguments of
• Each application server (Process definition – Java Virtual Machine)
• dmgr (System Administration – Deployment Manager – Process Definition ...)
• nodeagents (System Administration – Node agents – nodeagent – Process Def
...)
21

Logs – adjust language TDI
22
• TDI
• edit ibmdisrv.bat|sh
• add -Duser.language=en –Duser.region=US to LOG_4J variable
• Linux:
• Windows:

Rotate Logs
• WebSphere Logs too small for Troubleshooting
• Default: 5 Logs 1 MB each (SystemOut and SystemErr)
• Better 5-10 Logs 20 MB each
• Setting for each Application Server
• remember Nodeagents and Dmgr
• Change this as soon as your servers have been created
23

Rotate Logs
• IBM Connections 5.5 – SET BY DEFAULT!!
• Install.log
• Result:
• So your logs are stored 30 days, independent of size
24

Rotate IBM HTTP Server Logs
• Default: no max size for access_log and error_log
• Often some GB of Log files
• Open with an Editor?
• Disk size
• Search for this lines in httpd.conf:
• Comment out:
CustomLog log/access_log common
ErrorLog logs/error_log
# CustomLog log/access_log common
# ErrorLog logs/error_log
25

Rotate IBM HTTP Server Logs
• Add:
• Delete Log Files older than x days
• Linux
• Windows (Batch through Task Scheduler or Powershell)
Linux:
CustomLog "|/opt/IBM/HTTPServer/bin/rotatelogs /opt/IBM/HTTPServer/logs/access_log.%Y%m%d 86400" common
ErrorLog "|/opt/IBM/HTTPServer/bin/rotatelogs /opt/IBM/HTTPServer/logs/error_log.%Y%m%d 86400“
Windows:
CustomLog "|D:/IBM/HTTPServer/bin/rotatelogs.exe D:/IBM/HTTPServer/logs/access_log.%Y%m%d 86400" common
ErrorLog "|D:/IBM/HTTPServer/bin/rotatelogs.exe D:/IBM/HTTPServer/logs/error_log.%Y%m%d 86400"
crontab -e
# Delete logfiles older than 3 days in logs
10 0 * * * find /opt/IBM/HTTPServer/logs/*_log.* -mtime +3 -exec rm -rf {} ;
forfiles -p "D:IBMHTTPServerlogs" -s -m *_log.* -d -3 -c "cmd /c echo @file"
26

Rotate Logs DB2
• db2diag.log
• Default: no maximum size
• Default: %PROGRAMDATA%IBMDB2instancenameDB2
• Full C-Partition in Windows still hard to solve
[db2inst1@cnx-db2 ~]$ db2 get dbm cfg |grep -i diagsize
Size of rotating db2diag & notify logs (MB) (DIAGSIZE) = 0
[db2inst1@cnx-db2 ~]$ db2 update dbm cfg using DIAGSIZE 1024
DB20000I The UPDATE DATABASE MANAGER CONFIGURATION command completed successfully.
[db2inst1@cnx-db2 ~]$ db2 get dbm cfg |grep -i diagsize
Size of rotating db2diag & notify logs (MB) (DIAGSIZE) = 1024
27

HTTP Server Keystore
28
• Several Reviews showed
• Keystore of WebSphere Plugin used for IHS SSL Key
• Why is this worse?
• What would you do when you get SSL Errors within Connections?
• This overwrites plugin-key.kdb on your Webserver
• SSL Key deleted
• Backup?

HTTP Server Key store
29
• When you want to reuse Plugin Key store
• Import SSL Key into CMSKeyStore
• But never seen this in the wild

HTTP Server Keystore
• Best Practice - Create a separate key
store for IHS
• Ikeyman will help you
• Possible to use a wildcard
• Then you can just copy it to use on dev / test
machines
• Backup the keystore before changes
• Don’t activate “Expiration time”
• “Stash password to a file”
• Creates a cnx-key.sth file
• Used by IHS to open keystore
30

Security

J2EE Roles
• Some Applications are public readable after installation
• Profiles
• Communities
• Blogs
• Wikis
• Check after Updates
• Google: “Site:myconnections-host”
• Should only show a login page
• Use the Community Scripts to do this or change in the
ISC
32

Harden HTTP
• Disable SSLv2 / v3
• Automatically disabled with 8.5.5.4
• SSLProtocolDisableSSlv2 SSLv3
• Check with
hydra, nmap or ssllabs.com/ssltest/
• Default httpd.conf uses:
TLS_RSA_WITH_3DES_EDE_CBC_SHA
# Ciphers TLS1.0, 1.1
SSLCipherSpec TLS_RSA_WITH_AES_256_CBC_SHA
SSLCipherSpec TLS_RSA_WITH_AES_128_CBC_SHA
# Additional Ciphers TLS1.2
SSLCipherSpec TLS_RSA_WITH_AES_128_GCM_SHA256
SSLCipherSpec TLS_RSA_WITH_AES_256_GCM_SHA384
SSLCipherSpec TLS_RSA_WITH_AES_128_CBC_SHA256
SSLCipherSpec TLS_RSA_WITH_AES_256_CBC_SHA256
33

Harden HTTP
• If you use SSL Keys longer than 2048 bit, you must replace
Java policy
• Download and replace Java (unrestricted) policy files
• https://www-01.ibm.com/marketing/iwm/iwm/web/reg/pick.do?source=jcesdk
• Also needed if Domino (Mail Integration) or Sametime Proxy use
longer keys
• Remove Server Information (HTTP Header, Error pages)
• ServerSignature Off
• ServerTokens Prod (DEFAULT)
• AddServerHeader Off
Default
34

Remove Index
• Remove all Files except index.html from <IHS_ROOT>/htdocs
• Rename index.html (e.g. 0815.html)
• echo 1 > 0815.html
• For testing you can access the file
• Add robots.txt
35

Performance Tuning Guides
• 4.0
• http://www-
10.lotus.com/ldd/lcwiki.nsf/dx/IBM_Connections_4.0_Performance_Tunin
g_Guide
• 4.5 Addendum
• http://www-
10.lotus.com/ldd/lcwiki.nsf/dx/IBM_Connections_4.5_Performance_Tunin
g_Guide_Addendum
• 5.0 CR1
• http://www-
10.lotus.com/ldd/lcwiki.nsf/dx/IBM_Connection_V5_CR1_Tuning_guide
• Read everything carefully
• check and understand dependencies
37

Worst Practise Example - Tuning
• Customer showed me a system with following
infrastructure
• WebSphere
• Large deployment
• 16 GB RAM
• 4 Cores
• DB2
• 12 instances
• 8 GB RAM
• 4 Cores
• Connections restart 22 minutes
Web Server
ihs.example.local
WebSphere
was1.example.local
Db2 / TDI
db2.example.local
Freigabe
LDAP
domino1.example.local
User SynchronisationAuthentication
38

Solving the problem
• Large deployment means about 15 JVM on the machine
• Restart shows 15 min 100% CPU usage
• Adding 4 cores and restart time get down to 7 minutes
• Other option would be midsize deployment, but then you have to reinstall
Connections
• Java Heap Sizes set to default (256 MB and 768 MB) ->
increase to 1.5 – 2.5 GB
• Perf Guide mentions that multiple instances on DB2 only
increase performance with enough resources
• But that was not the real problem
• DataSource connectionPool Sizes are set to Default 1/10
• Increase this values to the proposals in the guide and ...
• Restart time comes down under 3 minutes
• Key point: read the complete guide
39

Java Heap
• Default Java Heap Sizes on Midsize Deployment: 2506 MB /
application server
• Large Deployment depends on application: 0.5 to 2.5 GB
• Main point in memory tuning
• Never exceed the system memory
• Swapping kills all your tuning efforts
• Counting the JVM Heap sizes is not enough
• Maximum heap is not the maximum amount of memory the jvm uses!
• Libraries, jars and so on count additional to memory usage
• JVM memory usage may be 3 * JVM maximum Heap
• Initial and maximum Heap Size should be equalized
• mentioned in IBM Connections 5.0 tuning guide
40

IBM HTTP Server
• Enable compression
• Important !!!!!
• See Slides from BP307 - IBM Connect 2014
• Save up to 70% network traffic
• Minimal increase of CPU load
• Enable file download through IHS
• Depend on your deployment
• Often security forbids storage access from DMZ
• If you have no access to file share from IHS -> Files
should be installed in a separate Cluster
41

Midsize Deployment Files
• Often IHS positioned in the red zone (DMZ)
• Mostly No Access to SHARED DIRECTORY
• Create a Cluster for Files
• No Problem with Large Deployments
• With Midsize you can add an additional Cluster during Setup
(Looks different on Connections 5.5!)
http://www-01.ibm.com/support/docview.wss?uid=swg21317658
42

Activate Synchronous File transfer
• Servers -> Application Servers -> serverName -> Web
Container Settings -> Web Container -> Custom
Properties
• com.ibm.ws.webcontainer.channelwritetype=sync
43

Enhance User experience
Happy admins with happy users

Single Sign On - LtpaToken
45
• Single Sign On within IBM portfolio
• Domino only supports one domain per Web SSO Document
• You can copy & paste Web SSO Documents and change Domain names
(see e.g. Paul Mooney - AdminBlast 2012 – Tip #4
• DNS Domain is multi value (works until Domino 8.5.x, but not with
Domino 9.x)
• Servers with mixed Internet Site and Non-Internet Site usage: copy &
paste too!
• Often internal servers use local domains, when Connections
is external accessible SSO needs workaround
• adding additional hostnames to domino
• You can use IHS (IBM HTTP Server) as a reverse proxy to access iNotes

Single Sign On - LtpaToken
46
• It’s possible but not recommended to change the cookie
name
• Default one are
• LtpaToken
• LtpaToken2
• Name dependencies
• Web-SSO document name for Domino
• Web SSO within WebSphere
• sametime.ini
• ST_TOKEN_TYPE=CustomLtpaName
• Connections scheduler

Single Sign On - SPNEGO
47
• Requirements
• Windows 2003 / 2008 / 2012 Active Directory
• Configure use documentation and
http://de.slideshare.net/david_hay/dave-hay-desktop-single-signon-
in-an-active-directory-world?related=1
• Real additional value for users
• Easy to deploy, when you have the rights and clue what to do
• Do not test Browser Single Sign On with Chrome, because process
does not end when you close the last window
• Tip: SPNEGO is not working with a SPN which is a CNAME DNS
alias

Mail integration
48
• Use IBM HTTP Server as reverse proxy to access iNotes
LoadModule rewrite_module modules/mod_rewrite.so
<IfModule mod_ibm_ssl.c>
Listen 0.0.0.0:1443
<VirtualHost *:1443>
ServerName connections.example.com
SSLEnable
RewriteEngine on
ProxyRequests Off
ProxyPass / http://inotes.example.local/
ProxyPassReverse / http://inotes.example.local/
</VirtualHost>
</IfModule>

iNotes Web Mail Redirect
49
https://connections.example.com:1443

Socialmail-config.xml
50
• When you use reverse proxy to access iNotes
• Mail integration works only when you use http or https
• Add UseConfiguredProtocolto your configuration
• Problem when you need to access multiple iNotes
Servers
<ServerConfig name="domino-redirect">
<ConfigType>REDIRECT</ConfigType>
<RedirectURL>https://connections.example.com:1443/iwaredir.nsf</RedirectURL>
<MailPattern type="example.com" />
</ServerConfig>
<GadgetConfig>
<GadgetPreference id="UseConfiguredProtocol">true</GadgetPreference>
</GadgetConfig>

Mail integration and SPNEGO
51
• LtpaToken contains AD $DN
• Lookup in Domino Directory with this DN -> user is not
allowed to open mail
• Solution
• Add AD $DN to ACL
• Or add AD $DN to Domino Fullname (AD DN contains , as delimiter
between ou)
• Or:
• http://tdiblog.anderls.com/2015/02/adding-user-active-directory.html
• Thanks Andreas Artner

What to Backup
• Using an example Connections installation guide rarely explains backups
• These guides normally do not mention backup, or what to back up
• Disk crash means data loss
• Database backups through file backup are not supported and mostly not
restorable
• Important!!!
• Database Backup through Online Backups can be taken when Connections is up
• Offline backups are also possible
• Ensure the file system & DB backup are run at the same time of day
• DB and Filesystem data will stay in sync – if you take your DB backup at midnight and the file
system at midday they will be out of sync
53

Backup
• Most important (minimum daily)
• Databases (offline or online)
• Shared content
• Important
• Configuration
• WebSphere Application Server
• Connections
• IBM HTTP Server
• TDI Solution
• Test if restore is possible!!!!
• Several issues with WebSphere restores, where binaries weren't on
the tape
54

Checklists

Checklist
Do
• Document your installation steps
• The official documentation is sometimes
confusing, because all OS within one
document
• Use a LDAP user for connectionsAdmin
• Be prepared for scaling
• Shared directory on UNC path
• No small deployment installations
• Tune your environment
• READ THE DOCUMENTATION!!!!
Don’t
• Use multiple instances DB2 with small
resources
• Install on a single machine (unless the
environment is very small or for test)
• Copy customizations to newer versions
• jsp, ftl copy will break something
• Use unstable file shares
• Test deployment with server IE
• Test with only one language
56

Install Checklist
• WebSphere Application Server
• Configure Federated Repository
• LtpaToken, enable security
• WebSphere Application Server Supplements (IHS, Plugins)
• DB2 (or other DBM)
• TDI
• Add Webserver to Dmgr (use configurewebserver.bat)
• Enable SSL on IHS
• Import IHS Root Key within WebSphere cell trust keystore (retrieve from port)
• Configure CCM
• Install optional Addonslike Forms Experience Builder, IBM Docs, Cognos
57

Documentation
Document EVERYTHING !!!
because you can remember everything you did ….
58

Documentation
• Everyone hates writing documentation
• BUT – make notes as you go, it doesn’t need to be a full
step by step guide with screenshots
• Document all customizataions
• Any additional changes made
• Anything of note that deviates from the guides
• Lessons learnt or how you solved issues
• Use the scripts to output some of it
59

Resources

Useful Tools
• Editor with syntax highlighting
• vim, geany
• notepad++, pspad, UltraEdit
• Tail
• baretail
• multitail
• mtail
• Proxy
• Fiddler (often asked for by IBM
Support)
• Burpsuite (intercept proxy)
• Browser
• Firefox (portable) / Firefox
ESR
• Chrome
• IE (download vm with
different versions)
• https://www.modern.ie
• Network analyzer
• Wireshark
• tcpdump
• Unzip / Unarchiver
• 7-zip
• WinRar
61

Links and References
• IBM Connections System Requirements
• http://www-01.ibm.com/support/docview.wss?uid=swg27012786
• IBM Connections Family Documentation
• http://www.ibm.com/support/knowledgecenter/SSYGQH/welcome
• IBM Connections 4 Performance Tuning Guide
• https://www-10.lotus.com/ldd/lcwiki.nsf/dx/IBM_Connections_4.0_Performance_Tuning_Guide
• IBM Connections 4.5 Performance Tuning Guide Addendum
• https://www-10.lotus.com/ldd/lcwiki.nsf/dx/IBM_Connections_4.5_Performance_Tuning_Guide_Addendum
• IBM Connections 5 CR1 Performance Tuning Guide
• https://www-10.lotus.com/ldd/lcwiki.nsf/dx/IBM_Connection_V5_CR1_Tuning_guide
62

Useful Blogs
• http://ibmconnections.com
• http://turtleblog.info
• http://portal2portal.blogspot.de
• https://www.urspringer.de
• http://socialconnections.info
• http://blog.robertfarstad.com
• http://www.curiousmitch.com
• http://www.ramsit.com/category/blog
• http://techblog.gis-ag.info
• https://milanmatejic.wordpress.com
• http://ibmdocs.com
• http://domino.elfworld.org
• https://dontforgetthe0.com
• http://dilf.me.uk/socialshazza
• http://www.stoeps.de
• http://scripting101.org
• http://meisenzahl.org
• http://martin.leyrer.priv.at
• http://kbild.ch
• http://www.notesgoddess.net
• http://www.dominodiva.com
• http://notesbusters.com
• https://rob59blog.wordpress.com
• http://connections101.info
• http://brandlrainer.blogspot.de
• https://collaborationben.com
63

Thank you very much for your attention!
panagenda GmbH – Make Your Data Work for You
Lahnstr. 17 ● 64646 Heppenheim (Germany)
Skype: christophstoettner ● Cell: +49 173 8588719
E-Mail: christoph.stoettner@panagenda.com
Christoph Stoettner
Senior Consultant
panagenda GmbH – Make Your Data Work for You
Lahnstr. 17 ● 64646 Heppenheim (Germany)
Skype: nico.meisenzahl ● Cell: +49 170 7355081
E-Mail: nico.meisenzahl@panagenda.com
Nico Meisenzahl
Consultant
64

Best and worst practices deploying IBM Connections

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