sr-users May 2017

sr-users@lists.kamailio.org

91 participants
117 discussions

permissions module db
by David Villasmil 11 May '17

11 May '17

Hello guys, I0ve freated a view taken from other tables to use with the permissions module, the result looks like this: And some values: 23 10 192.198.1.215 32 0 Training-215 Still, Kamailio complaints with: 0(5796) DEBUG: <core> [db_res.c:188]: db_allocate_rows(): allocate 48 bytes for rows at 0x7f69510651b8 0(5796) DEBUG: <core> [db_row.c:117]: db_allocate_row(): allocate 160 bytes for row values at 0x7f6951065250 0(5796) DEBUG: <core> [db_val.c:74]: db_str2val(): converting INT [10] 0(5796) DEBUG: <core> [db_val.c:118]: db_str2val(): converting STRING [67.215.186.215] 0(5796) DEBUG: <core> [db_val.c:85]: db_str2val(): converting BIGINT [32] 0(5796) DEBUG: <core> [db_val.c:85]: db_str2val(): converting BIGINT [0] 0(5796) DEBUG: <core> [db_val.c:118]: db_str2val(): converting STRING [Training-215] 0(5796) DEBUG: <core> [db_row.c:117]: db_allocate_row(): allocate 160 bytes for row values at 0x7f6951065358 0(5796) DEBUG: <core> [db_val.c:74]: db_str2val(): converting INT [10] 0(5796) DEBUG: <core> [db_val.c:118]: db_str2val(): converting STRING [67.215.186.216] 0(5796) DEBUG: <core> [db_val.c:85]: db_str2val(): converting BIGINT [32] 0(5796) DEBUG: <core> [db_val.c:85]: db_str2val(): converting BIGINT [0] 0(5796) DEBUG: <core> [db_val.c:118]: db_str2val(): converting STRING [PBX-Service] 0(5796) DEBUG: <core> [db_row.c:117]: db_allocate_row(): allocate 160 bytes for row values at 0x7f6951065460 0(5796) DEBUG: <core> [db_val.c:74]: db_str2val(): converting INT [10] 0(5796) DEBUG: <core> [db_val.c:118]: db_str2val(): converting STRING [67.215.186.212] 0(5796) DEBUG: <core> [db_val.c:85]: db_str2val(): converting BIGINT [32] 0(5796) DEBUG: <core> [db_val.c:85]: db_str2val(): converting BIGINT [0] 0(5796) DEBUG: <core> [db_val.c:118]: db_str2val(): converting STRING [JuanPablo] 0(5796) DEBUG: permissions [address.c:142]: reload_address_table(): Number of rows in address table: 3 0(5796) DEBUG: permissions [address.c:169]: reload_address_table(): failure during checks of database value 3 (subnet size/CIDR) in address table 0(5796) ERROR: permissions [address.c:247]: reload_address_table(): database problem - invalid record 0(5796) DEBUG: <core> [db_res.c:79]: db_free_columns(): freeing 5 columns 0(5796) DEBUG: <core> [db_res.c:83]: db_free_columns(): freeing RES_NAMES[0] at 0x7f6951064790 0(5796) DEBUG: <core> [db_res.c:83]: db_free_columns(): freeing RES_NAMES[1] at 0x7f6951064718 0(5796) DEBUG: <core> [db_res.c:83]: db_free_columns(): freeing RES_NAMES[2] at 0x7f6951063950 0(5796) DEBUG: <core> [db_res.c:83]: db_free_columns(): freeing RES_NAMES[3] at 0x7f6951064340 0(5796) DEBUG: <core> [db_res.c:83]: db_free_columns(): freeing RES_NAMES[4] at 0x7f6951064498 0(5796) DEBUG: <core> [db_res.c:96]: db_free_columns(): freeing result names at 0x7f6951064610 0(5796) DEBUG: <core> [db_res.c:101]: db_free_columns(): freeing result types at 0x7f6951064808 0(5796) DEBUG: <core> [db_res.c:52]: db_free_rows(): freeing 3 rows 0(5796) DEBUG: <core> [db_row.c:95]: db_free_row(): freeing row values at 0x7f6951065250 0(5796) DEBUG: <core> [db_row.c:95]: db_free_row(): freeing row values at 0x7f6951065358 0(5796) DEBUG: <core> [db_row.c:95]: db_free_row(): freeing row values at 0x7f6951065460 0(5796) DEBUG: <core> [db_res.c:60]: db_free_rows(): freeing rows at 0x7f69510651b8 0(5796) DEBUG: <core> [db_res.c:138]: db_free_result(): freeing result set at 0x7f6951065118 0(5796) CRITICAL: permissions [address.c:359]: init_addresses(): reload of address table failed 0(5796) DEBUG: <core> [db_pool.c:100]: pool_remove(): removing connection from the pool 0(5796) ERROR: permissions [permissions.c:614]: mod_init(): failed to initialize the allow_address function 0(5796) ERROR: <core> [core/sr_module.c:968]: init_mod(): Error while initializing module permissions (/usr/local/kamailio5/lib64/kamailio/modules/permissions.so) ERROR: error while initializing modules Can anyone help? thanks! Regards, David Villasmil email: david.villasmil.work(a)gmail.com phone: +34669448337 ᐧ

2 4

Live streaming from Kamailio World Conference 2017
by Daniel-Constantin Mierla 10 May '17

10 May '17

Hello, if you haven't noticed from other social networking channels, there is a live stream from Kamailio World 2017, thanks to Pascom team: - http://live.pascom.net/ Enjoy! Daniel -- Daniel-Constantin Mierla www.twitter.com/miconda -- www.linkedin.com/in/miconda Kamailio Advanced Training - May 22-24 (USA) - www.asipto.com Kamailio World Conference - May 8-10, 2017 - www.kamailioworld.com

3 3

Kamailio ro user
by Донат Зеничев 10 May '17

10 May '17

Yes, I saw this part of kamailio doc, and even I added this part in my.cnf: [kamailio] socket = /path/to/mysql.sock user = kamailiouser password = kamailiopass default-character-set = utf8 (with valid password) it didn't help me (of course I restarted the mysqld). Both of the following syntax worked fine for me: # mysql --user=xxx --password=xx --host=localhost --protocol=tcp <database> # mysql --user=xxx --password=xx --protocol=socket <database> So that, I could get into a mysql console (with kamailioro user/pasword). I mentioned in a previous message, that Kamailio is installed from repository and is not compiled. But, kamailio-mysql-modules:amd64 is installed. So looks, like there is no problem with socket connection, because kamailio doesn't say that problem depends on mysql module, it said that problem consists of accessing for kamailioro user. >Hi, > >So, I have not been using Kamailio with MySQL before, but I do have >some basic MySQL knowledge. > >MySQL can be used with both socket and TCP, have you verified that >your setup is matching the server setup. > >Have you look at this section: >https://kamailio.org/docs/modules/4.3.x/modules/db_mysql.html#idp3037648 > >You can also test/check that socket/tcp is working by testing it like this: ># mysql --user=xxx --password=xx --host=localhost --protocol=tcp <database> ># mysql --user=xxx --password=xx --protocol=socket <database> > > >On Fri, May 5, 2017 at 4:47 PM, Донат Зеничев <donat.zenichev at gmail.com> wrote: >> Hi. >> >> I have just written routing logic for my new sip-proxy server, but have a >> problem with start of kamailio. >> >> ./kamailio.cfg file has no mistakes - it's made well done. >> >> before to start coding with routing logic, of course I installed kamailio >> (ver 4.3.4) from repository. >> OS - ubuntu 16.04 >> >> and add next modules from repository: >> kamailio-mysql-modules:amd64 >> kamailio-perl-modules:amd64 >> kamailio-radius-modules:amd64 >> kamailio-tls-modules:amd64 >> kamailio-utils-modules:amd64 >> >> next step, I edited the ./kamctlrc file to contain proper user/password and >> mysql engine settings. >> And than, ran the kamdbctl create (without special parameters). >> >> A bit about my kamailio.cfg : >> fork=yes >> children=4 >> disable_tcp=no >> tcp_children=4 >> tcp_send_timeout=3 >> tcp_connect_timeout=5 >> tcp_connection_lifetime=3600 >> tcp_max_connections=4096 >> >> of course mpath is defined and proper modparams (depending on my ver) for >> modules are used. >> >> A bit about my kamctlrc: >> Ro and rw user are defined (and connections to needed db from these users is >> checked, as like it was real kamailio that tries to update some values in db >> - well done). >> >> Also PID_FILE and FIFOPATH are defined (/var/run/kamailio dir. created) >> >> So that, now I'm trying to start the server as a daemon, I have the >> following row in systemctl: >> ERROR: db_mysql [km_my_con.c:124]: db_mysql_new_connection(): driver error: >> Access denied for user 'kamailioro'@'localhost' (using password: YES) >> >> And of course all other modules can't run because they depend on the db >> connections. >> So looks like very simple problem, just need to edit mysql user table to >> have proper passwords. >> >> But I've refurbished ro and rw user several times, it didn't help me. >> Also tried to drop kamailio db with db users and run kamdbctl create again - >> nothing changed. >> >> I tried to find where kamailioro user can be defined as default, but didn't >> find any files (apart of kamctlrc in /etc/kamailio directory). >> /etc/default/kamailio file contains proper values and paths. >> >> Please advise something. >> >> >> >> -- >> -- >> BR, Donat Zenichev >> Wnet VoIP team >> Tel: +380(44) 5-900-808 >> http://wnet.ua >> >> _______________________________________________ >> Kamailio (SER) - Users Mailing List >> sr-users at lists.kamailio.org >> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users >> > > > >-- >Best regards, > >Glenn O. Larsen -- -- BR, Donat Zenichev Wnet VoIP team Tel: +380(44) 5-900-808 http://wnet.ua

3 3

Kamailio ro user
by Донат Зеничев 10 May '17

10 May '17

Guys, I'm so sorry for wasting your time. I've just dropped all kamailio mysql users, database and commented kamailioro user in kamctlrc config file and than ran a kamdbctl create command again, to refurbish all the structure. So that, it didn't create kamailioro user, like it was in previous time. And now it doesn't requesting the kamailioro user credentials at all. Works fine, daemon starts without problem. Thanks for reply! Question is now closed for me. >Yes, I saw this part of kamailio doc, and even I added this part in my.cnf: >[kamailio] >socket = /path/to/mysql.sock >user = kamailiouser >password = kamailiopass >default-character-set = utf8 > >(with valid password) it didn't help me (of course I restarted the mysqld). > >Both of the following syntax worked fine for me: ># mysql --user=xxx --password=xx --host=localhost --protocol=tcp <database> ># mysql --user=xxx --password=xx --protocol=socket <database> > >So that, I could get into a mysql console (with kamailioro user/pasword). > >I mentioned in a previous message, that Kamailio is installed from repository and is not compiled. >But, kamailio-mysql-modules:amd64 is installed. > >So looks, like there is no problem with socket connection, because kamailio doesn't say that problem depends on mysql module, it said that problem consists of accessing for kamailioro user. > >>Hi, >> >>So, I have not been using Kamailio with MySQL before, but I do have >>some basic MySQL knowledge. >> >>MySQL can be used with both socket and TCP, have you verified that >>your setup is matching the server setup. >> >>Have you look at this section: >>https://kamailio.org/docs/modules/4.3.x/modules/db_mysql.html#idp3037648 >> >>You can also test/check that socket/tcp is working by testing it like this: >># mysql --user=xxx --password=xx --host=localhost --protocol=tcp <database> >># mysql --user=xxx --password=xx --protocol=socket <database> >> >> >>On Fri, May 5, 2017 at 4:47 PM, Донат Зеничев <donat.zenichev at gmail.com> wrote: >>> Hi. >>> >>> I have just written routing logic for my new sip-proxy server, but have a >>> problem with start of kamailio. >>> >>> ./kamailio.cfg file has no mistakes - it's made well done. >>> >>> before to start coding with routing logic, of course I installed kamailio >>> (ver 4.3.4) from repository. >>> OS - ubuntu 16.04 >>> >>> and add next modules from repository: >>> kamailio-mysql-modules:amd64 >>> kamailio-perl-modules:amd64 >>> kamailio-radius-modules:amd64 >>> kamailio-tls-modules:amd64 >>> kamailio-utils-modules:amd64 >>> >>> next step, I edited the ./kamctlrc file to contain proper user/password and >>> mysql engine settings. >>> And than, ran the kamdbctl create (without special parameters). >>> >>> A bit about my kamailio.cfg : >>> fork=yes >>> children=4 >>> disable_tcp=no >>> tcp_children=4 >>> tcp_send_timeout=3 >>> tcp_connect_timeout=5 >>> tcp_connection_lifetime=3600 >>> tcp_max_connections=4096 >>> >>> of course mpath is defined and proper modparams (depending on my ver) for >>> modules are used. >>> >>> A bit about my kamctlrc: >>> Ro and rw user are defined (and connections to needed db from these users is >>> checked, as like it was real kamailio that tries to update some values in db >>> - well done). >>> >>> Also PID_FILE and FIFOPATH are defined (/var/run/kamailio dir. created) >>> >>> So that, now I'm trying to start the server as a daemon, I have the >>> following row in systemctl: >>> ERROR: db_mysql [km_my_con.c:124]: db_mysql_new_connection(): driver error: >>> Access denied for user 'kamailioro'@'localhost' (using password: YES) >>> >>> And of course all other modules can't run because they depend on the db >>> connections. >>> So looks like very simple problem, just need to edit mysql user table to >>> have proper passwords. >>> >>> But I've refurbished ro and rw user several times, it didn't help me. >>> Also tried to drop kamailio db with db users and run kamdbctl create again - >>> nothing changed. >>> >>> I tried to find where kamailioro user can be defined as default, but didn't >>> find any files (apart of kamctlrc in /etc/kamailio directory). >>> /etc/default/kamailio file contains proper values and paths. >>> >>> Please advise something. >>> >>> >>> >>> -- >>> -- >>> BR, Donat Zenichev >>> Wnet VoIP team >>> Tel: +380(44) 5-900-808 >>> http://wnet.ua >>> >>> _______________________________________________ >>> Kamailio (SER) - Users Mailing List >>> sr-users at lists.kamailio.org >>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users >>> >> >> >> >>-- >>Best regards, >> >>Glenn O. Larsen -- -- BR, Donat Zenichev Wnet VoIP team Tel: +380(44) 5-900-808 http://wnet.ua

1 0

dlg_refer caller fails to create callee dialog
by Pranathi Venkatayogi 10 May '17

10 May '17

Hi, I am calling dlg_refer after dialog is confirmed on both sides. This time the callee is a real client, so call was established end to end. But still I get the error "No contact available" when callee dialog is being created - see below. I am attaching the snippet of my config where I am calling dlg_refer as well.. Is there something wrong with my usage? Please advise. Thanks, Pranathi 4719 May 8 22:27:31 devsip00 /sbin/kamailio[1125]: INFO: <script>: Translation: Dialog confirmed 3 and agenturi: sip:agent1@devtranslation.sms-test.cyracom.com 4720 May 8 22:27:31 devsip00 /sbin/kamailio[1125]: exec: *** cfgtrace:local_route=[dialog:start] c=[routingdev.cfg] l=573 a=16 n=if 4721 May 8 22:27:31 devsip00 /sbin/kamailio[1125]: exec: *** cfgtrace:local_route=[dialog:start] c=[routingdev.cfg] l=567 a=26 n=xlog 4722 May 8 22:27:31 devsip00 /sbin/kamailio[1125]: INFO: <script>: Translation: Referring dialog from sip:71594386@10.11.200.59:49376;alias=10.11.200.59~49376~1 4723 May 8 22:27:31 devsip00 /sbin/kamailio[1125]: exec: *** cfgtrace:local_route=[dialog:start] c=[routingdev.cfg] l=568 a=26 n=dlg_refer 4724 May 8 22:27:31 devsip00 /sbin/kamailio[1125]: ERROR: dialog [dlg_req_within.c:85]: build_dlg_t(): no contact available 4725 May 8 22:27:31 devsip00 /sbin/kamailio[1125]: ERROR: dialog [dlg_transfer.c:188]: dlg_refer_callee(): failed to create dlg_t event_route[dialog:start] { if(is_known_dlg()) { $var(agentUri) = $dlg_var("agenturi"); xlog("L_INFO", "Translation: Dialog confirmed $dlg(state) and agenturi: $var(agentUri)"); if ($(var(agentUri){uri.user}) != "") { xlog("L_INFO", "Translation: Referring dialog from $dlg(from_contact)"); dlg_refer("caller", "$var(agentUri)"); } else { xlog("L_INFO", "Translation: Dialog confirmed $dlg(state) but no agent info yet\n"); } } } Pranathi Venkatayogi System Developer II (520) 745-9447 x4466 www.cyracom.com<http://www.cyracom.com/> Join us: [cid:image001.gif@01D1C9C9.C4E8B6D0] <https://www.facebook.com/pages/CyraCom-LLC/134704783312720> [cid:image002.gif@01D1C9C9.C4E8B6D0] <https://twitter.com/cyracom> [cid:image003.gif@01D1C9C9.C4E8B6D0] <http://www.linkedin.com/company/cyracom> [cid:image004.gif@01D1C9C9.C4E8B6D0] <http://www.cyracom.com/blog/> [cid:image005.png@01D1C9C9.C4E8B6D0] DISCLAIMER: This e-mail and any attached content may contain confidential or privileged material delivered for the sole use of the intended recipient(s). Any review, use, distribution or disclosure by others is strictly prohibited. If you are not the intended recipient (or authorized to receive for the recipient), please contact the sender immediately by reply e-mail and delete all copies of this message. It is the recipient's responsibility to scan this e-mail and any attachments for viruses. The content of this e-mail message, including any attachments, does not comprise a contract or a portion of a contract, and so does not bind CyraCom International, Inc. or any of its agents or subsidiaries. CyraCom, LLC and Voiance Language Services, LLC are wholly owned subsidiaries of CyraCom International, Inc.

2 3

KEMI, Lua external modules and nonblicking operations
by Yuriy Gorlichenko 10 May '17

10 May '17

Hi all. I m trying to use KEMI with lua and want to make call http client lua module (external). I want to ask: is it will block kamailio event loop (or somethig like it in kamailio)? For more understanding what im talking about i will provide example with openresty (nginx + lua) It uses nginx cosockets and if i will use not cosockets based module in openresty it will block nginx eventloop because of using network operations in nginx worker context.

2 1

Re: [SR-Users] [OpenSIPS-Users] TLS SIP packet tracing and visualization
by Giovanni Maruzzelli 09 May '17

09 May '17

On 9 May 2017 at 15:18, Bogdan-Andrei Iancu <bogdan(a)opensips.org> wrote: > Thank you Giovanni, that is a useful tool - we will document it in the > OpenSIPS TLS tutorial, so other can benefit ;) > > Glad about it! Be sure to get it from https://freeswitch.org/confluence/display/FREESWITCH/ Packet+Capture#PacketCapture-TLSwithsharka , is the latest version with a couple fixes. -giovanni > Many thanks, > > Bogdan-Andrei Iancu > OpenSIPS Founder and Developer > http://www.opensips-solutions.com > > OpenSIPS Summit May 2017 Amsterdam > http://www.opensips.org/events/Summit-2017Amsterdam.html > > On 05/02/2017 05:52 PM, Giovanni Maruzzelli wrote: > > For a cut and paste ready version, that has the correct carriage returns > (mangled by mail), check it in FreeSWITCH documentation: > > https://freeswitch.org/confluence/display/FREESWITCH/ > Packet+Capture#PacketCapture-TLSwithsharka > > -giovanni > > On 2 May 2017 at 16:26, Giovanni Maruzzelli <gmaruzz(a)gmail.com> wrote: > >> Hello fellows, >> >> after some experimentation with various tools, I come out with a little >> shell tool that maybe can be useful to you too. >> >> It can only work with non-forward secrecy ciphers, obviously, and only if >> is started before the client do the initial TLS handshake (eg, just restart >> the client). Forward secrecy cannot be decrypted after fact, so don't waste >> effort. >> >> An example of ciphers that can be decrypted are the "AES256-SHA" openssl >> cipher group. You can use ssldump to check what cipher is used by >> serverhello. >> >> Enjoy, make it better, and share it :) >> >> >> #!/bin/bash >> # brought to you by Giovanni Maruzzelli >> # >> SERVERIP="192.168.1.150" >> SERVERPORT="5061" >> PRIVKEY="/etc/certs/privkey.pem" >> STDERR2DEVNULL=" 2>/dev/null " >> REGEX="notyet" >> >> if [ -z "$1" ]; then >> REGEX="\\\.*" >> else >> REGEX="$1" >> fi >> FILTER="ssl.app_data and sip matches" >> FILTER2="$FILTER \"$REGEX\"" >> FILTER3="'$FILTER2'" >> ARGUMENT="-i 1 -Y $FILTER3 -E header=y -T fields -e frame.number -e >> frame.time -e frame.time_delta_displayed -e ip.src -e ip.dst -e >> sip.Status-Line -e sip.Request-Line -e sip.msg_hdr -l -d >> tcp.port\=\=5061,sip -o \"ssl.keys_list: $SERVERIP,$SERVERPORT,sip,$PRIVKEY\" >> $STDERR2DEVNULL | sed -u 's/\t/\n/g' | sed -u '/^$/d' | sed -u >> 's/^[0-9]*$/\n==&==============================/g'" >> >> echo "" >> echo "NB: if it do not works, edit script so that STDERR2DEVNULL=\" \" >> and try again" >> echo "" >> echo "NB: remember to quote and escape match patterns, using triple slash" >> echo " eg, for matching 1010(a)pbx.example.com, use \" >> 1010(a)pbx.example.com\"" >> echo " eg, for matching anything, use \"\\\\\\.*\"" >> echo " eg, for matching *98, use \"\\\\\\*98\"" >> echo "USAGE: $0 \"\\\\\\*98(a)pbx.example.com\"" >> echo "" >> >> >> case "$1" in >> -help|--help|?) >> exit 0 >> ;; >> *) >> echo "THIS TIME WE'RE DOING:" >> echo "tshark $ARGUMENT" >> echo "" >> bash -c "tshark $ARGUMENT" >> ;; >> esac >> >> >> >> -- >> >> Sincerely, >> >> Giovanni Maruzzelli >> OpenTelecom.IT >> cell: +39 347 266 56 18 >> > > > > -- > > Sincerely, > > Giovanni Maruzzelli > OpenTelecom.IT > cell: +39 347 266 56 18 > > > _______________________________________________ > Users mailing listUsers@lists.opensips.orghttp://lists.opensips.org/cgi-bin/mailman/listinfo/users > > > -- Sincerely, Giovanni Maruzzelli OpenTelecom.IT cell: +39 347 266 56 18

1 0

Issue with INVITE to NATed client
by Iskren Hadzhinedev 08 May '17

08 May '17

Hi list! I'm using kamailio 4.2 for load-balancing and failover via dispatcher, but I'm having some NAT related issues and I was hoping that someone might point me in the right direction. My setup is the following: PSTN - PBX - kamailio - NAT - client Calls from the NATed client to PSTN and/or PBX features (e.g. voicemail) work just fine. However, when a call comes from PSTN to the client, kamailio sends the INVITE to the client's RFC1918 IP and I can't figure out how to send it to the correct destination. I tried loading the registrar and usrloc modules and used save("location") during REGISTER and lookup("location") just before loose_route(), but the end result was that kamailio replied to REGISTERs with any username/password with a 200 OK and the endpoints never registered with the PBX. I can attach the config file if that will help. Thanks for all input in advance! Regards, Iskren

3 5

Can rtpproxy stream audio inside a call?
by Yufei Tao 08 May '17

08 May '17

Hi, Just a quick question: if I use the Kamailio rtpproxy module with the Sippy RTPproxy, can I stream audio within a call? Or is it only possible before call audio is established? For example can I mix/playback audio file into an existing established call session at any time using functions rtpproxy_stream2uac() and rtpproxy_stream2uas() somehow? If it is possible, does it need to be triggered by an in-dialog message from either UAC or UAS? Cheers, Yufei

3 2

kamailio crashes when it receives CANCEL
by Andy 08 May '17

08 May '17

Hi, when one of the proxies receive CANCEL, and it also the tries to generate 408 because of frv_inv_timer timeout at the sametime the e2e_cancel tries to generate a response to CANCEL - 487 at this time kamailio crashes from build_res_buf_from_sip_req, << for(lump=msg->reply_lump;lump;lump=lump->next) { len += lump->text.len; >> is it because the 408 generated deletes the reply lump or how can it be prevented. thanks for looking -- View this message in context: http://sip-router.1086192.n5.nabble.com/kamailio-crashes-when-it-receives-C… Sent from the Users mailing list archive at Nabble.com.

3 5

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sr-users May 2017