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• Internet of Things Becoming Reality

  - by kristin.jellison

  The Internet of Things is not just on the radar—it’s becoming a reality. A globally connected continuum of devices and objects will unleash untold possibilities for businesses and the people they touch. But the “things” are only a small part of a much larger, integrated architecture. A great example of this comes from the healthcare industry. Imagine an expectant mother who needs to watch her blood pressure. She lives in a mountain village 100 miles away from medical attention. Luckily, she can use a small “wearable” device to monitor her status and wirelessly transmit the information to a healthcare hub in her village. Now, say the healthcare hub identifies that the expectant mother’s blood pressure is dangerously high. It sends a real-time alert to the patient’s wearable device, advising her to contact her doctor. It also pushes an alert with the patient’s historical data to the doctor’s tablet PC. He inserts a smart security card into the tablet to verify his identity. This ensures that only the right people have access to the patient’s data. Then, comparing the new data with the patient’s medical history, the doctor decides she needs urgent medical attention. GPS tracking devices on ambulances in the field identify and dispatch the closest one available. An alert also goes to the closest hospital with the necessary facilities. It sends real-time information on her condition directly from the ambulance. So when she arrives, they already have a treatment plan in place to ensure she gets the right care. The Internet of Things makes a huge difference for the patient. She receives personalized and responsive healthcare. But this technology also helps the businesses involved. The healthcare provider achieves a competitive advantage in its services. The hospital benefits from cost savings through more accurate treatment and better application of services. All of this, in turn, translates into savings on insurance claims. This is an ideal scenario for the Internet of Things—when all the devices integrate easily and when the relevant organizations have all the right systems in place. But in reality, that can be difficult to achieve. Core design principles are required to make the whole system work. Open standards allow these systems to talk to each other. Integrated security protects personal, financial, commercial and regulatory information. A reliable and highly available systems infrastructure is necessary to keep these systems running 24/7. If this system were just made up of separate components, it would be prohibitively complex and expensive for almost any organization. The solution is integration, and Oracle is leading the way. We’re developing converged solutions, not just from device to datacenter, but across devices, utilizing the Java platform, and through data acquisition and management, integration, analytics, security and decision-making. The Internet of Things (IoT) requires the predictable action and interaction of a potentially endless number of components. It’s in that convergence that the true value of the Internet of Things emerges. Partners who take the comprehensive view and choose to engage with the Internet of Things as a fully integrated platform stand to gain the most from the Internet of Things’ many opportunities. To discover what else Oracle is doing to connect the world, read about Oracle’s Internet of Things Platform. Learn how you can get involved as a partner by checking out the Oracle Java Knowledge Zone. Best regards, David Hicks

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• "Scheduling restart of crashed service", but no call to onStart() follows

  - by kostmo

  In the 1.6 API, is there a way to ensure that the onStart() method of a Service is called after the service is killed due to memory pressure? From the logs, it seems that the "process" that the service belongs to is restarted, but the service itself is not. I have placed a Log.d() call in the onStart() method, and this is not reached. To test my service under memory pressure, I spawn it from an activity, then launch the web browser and visit some Javascript-heavy websites like Slashdot until my service is killed. The logcat reads: 03-07 16:44:13.778: INFO/ActivityManager(52): Process com.kostmo.charbuilder.full (pid 2909) has died. 03-07 16:44:13.778: WARN/ActivityManager(52): Scheduling restart of crashed service com.kostmo.charbuilder.full/com.kostmo.charbuilder.DownloadImagesService in 5000ms 03-07 16:44:13.778: INFO/ActivityManager(52): Low Memory: No more background processes. 03-07 16:44:13.778: ERROR/ActivityThread(52): Failed to find provider info for android.server.checkin 03-07 16:44:13.778: WARN/Checkin(52): Can't log event SYSTEM_SERVICE_LOOPING: java.lang.IllegalArgumentException: Unknown URL content://android.server.checkin/events 03-07 16:44:18.908: INFO/ActivityManager(52): Start proc com.kostmo.charbuilder.full for service com.kostmo.charbuilder.full/com.kostmo.charbuilder.DownloadImagesService: pid=3560 uid=10027 gids={3003, 1015} 03-07 16:44:19.868: DEBUG/ddm-heap(3560): Got feature list request 03-07 16:44:20.128: INFO/ActivityThread(3560): Publishing provider com.kostmo.charbuilder.full.provider.character: com.kostmo.charbuilder.provider.ImageFileContentProvider

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• parsing xml using dom4j

  - by D3GAN

  My XML structure is like this: <rss> <channel> <yweather:location city="Paris" region="" country="France"/> <yweather:units temperature="C" distance="km" pressure="mb" speed="km/h"/> <yweather:wind chill="-1" direction="40" speed="11.27"/> <yweather:atmosphere humidity="87" visibility="9.99" pressure="1015.92" rising="0"/> <yweather:astronomy sunrise="8:30 am" sunset="4:54 pm"/> </channel> </rss> when I tried to parse it using dom4j SAXReader xmlReader = createXmlReader(); Document doc = null; doc = xmlReader.read( inputStream );//inputStream is input of function log.info(doc.valueOf("/rss/channel/yweather:location/@city")); private SAXReader createXmlReader() { Map<String,String> uris = new HashMap<String,String>(); uris.put( "yweather", "http://xml.weather.yahoo.com/ns/rss/1.0" ); uris.put( "geo", "http://www.w3.org/2003/01/geo/wgs84_pos#" ); DocumentFactory factory = new DocumentFactory(); factory.setXPathNamespaceURIs( uris ); SAXReader xmlReader = new SAXReader(); xmlReader.setDocumentFactory( factory ); return xmlReader; } But I got nothing in cmd but when I print doc.asXML(), my XML structure print correctly!

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• How do you fix a MySQL “Incorrect key file” error when you can’t repair the table?

  - by Wayne M

  I'm trying to run a rather large query that is supposed to run nightly to populate a table. I'm getting an error saying Incorrect key file for table '/var/tmp/#sql_201e_0.MYI'; try to repair it but the storage engine I'm using (whatever the default is, I guess?) doesn't support repairing tables. how do I fix this so I can run the query? We are under pressure to get this table loaded for a client.

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• IPsec tunnel to Android device not created even though there is an IKE SA

  - by Quentin Swain

  I'm trying to configure a VPN tunnel between an Android device running 4.1 and a Fedora 17 Linux box running strongSwan 5.0. The device reports that it is connected and strongSwan statusall returns that there is an IKE SA, but doesn't display a tunnel. I used the instructions for iOS in the wiki to generate certificates and configure strongSwan. Since Android uses a modified version of racoon this should work and since the connection is partly established I think I am on the right track. I don't see any errors about not being able to create the tunnel. This is the configuration for the strongSwan connection conn android2 keyexchange=ikev1 authby=xauthrsasig xauth=server left=96.244.142.28 leftsubnet=0.0.0.0/0 leftfirewall=yes leftcert=serverCert.pem right=%any rightsubnet=10.0.0.0/24 rightsourceip=10.0.0.2 rightcert=clientCert.pem ike=aes256-sha1-modp1024 auto=add This is the output of strongswan statusall Status of IKE charon daemon (strongSwan 5.0.0, Linux 3.3.4-5.fc17.x86_64, x86_64): uptime: 20 minutes, since Oct 31 10:27:31 2012 malloc: sbrk 270336, mmap 0, used 198144, free 72192 worker threads: 8 of 16 idle, 7/1/0/0 working, job queue: 0/0/0/0, scheduled: 7 loaded plugins: charon aes des sha1 sha2 md5 random nonce x509 revocation constraints pubkey pkcs1 pkcs8 pgp dnskey pem openssl fips-prf gmp xcbc cmac hmac attr kernel-netlink resolve socket-default stroke updown xauth-generic Virtual IP pools (size/online/offline): android-hybrid: 1/0/0 android2: 1/1/0 Listening IP addresses: 96.244.142.28 Connections: android-hybrid: %any...%any IKEv1 android-hybrid: local: [C=CH, O=strongSwan, CN=vpn.strongswan.org] uses public key authentication android-hybrid: cert: "C=CH, O=strongSwan, CN=vpn.strongswan.org" android-hybrid: remote: [%any] uses XAuth authentication: any android-hybrid: child: dynamic === dynamic TUNNEL android2: 96.244.142.28...%any IKEv1 android2: local: [C=CH, O=strongSwan, CN=vpn.strongswan.org] uses public key authentication android2: cert: "C=CH, O=strongSwan, CN=vpn.strongswan.org" android2: remote: [C=CH, O=strongSwan, CN=client] uses public key authentication android2: cert: "C=CH, O=strongSwan, CN=client" android2: remote: [%any] uses XAuth authentication: any android2: child: 0.0.0.0/0 === 10.0.0.0/24 TUNNEL Security Associations (1 up, 0 connecting): android2[3]: ESTABLISHED 10 seconds ago, 96.244.142.28[C=CH, O=strongSwan, CN=vpn.strongswan.org]...208.54.35.241[C=CH, O=strongSwan, CN=client] android2[3]: Remote XAuth identity: android android2[3]: IKEv1 SPIs: 4151e371ad46b20d_i 59a56390d74792d2_r*, public key reauthentication in 56 minutes android2[3]: IKE proposal: AES_CBC_256/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024 The output of ip -s xfrm policy src ::/0 dst ::/0 uid 0 socket in action allow index 3851 priority 0 ptype main share any flag (0x00000000) lifetime config: limit: soft 0(bytes), hard 0(bytes) limit: soft 0(packets), hard 0(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:29:08 use - src ::/0 dst ::/0 uid 0 socket out action allow index 3844 priority 0 ptype main share any flag (0x00000000) lifetime config: limit: soft 0(bytes), hard 0(bytes) limit: soft 0(packets), hard 0(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:29:08 use - src ::/0 dst ::/0 uid 0 socket in action allow index 3835 priority 0 ptype main share any flag (0x00000000) lifetime config: limit: soft 0(bytes), hard 0(bytes) limit: soft 0(packets), hard 0(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:29:08 use - src ::/0 dst ::/0 uid 0 socket out action allow index 3828 priority 0 ptype main share any flag (0x00000000) lifetime config: limit: soft 0(bytes), hard 0(bytes) limit: soft 0(packets), hard 0(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:29:08 use - src 0.0.0.0/0 dst 0.0.0.0/0 uid 0 socket in action allow index 3819 priority 0 ptype main share any flag (0x00000000) lifetime config: limit: soft 0(bytes), hard 0(bytes) limit: soft 0(packets), hard 0(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:29:08 use 2012-10-31 13:29:39 src 0.0.0.0/0 dst 0.0.0.0/0 uid 0 socket out action allow index 3812 priority 0 ptype main share any flag (0x00000000) lifetime config: limit: soft 0(bytes), hard 0(bytes) limit: soft 0(packets), hard 0(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:29:08 use 2012-10-31 13:29:22 src 0.0.0.0/0 dst 0.0.0.0/0 uid 0 socket in action allow index 3803 priority 0 ptype main share any flag (0x00000000) lifetime config: limit: soft 0(bytes), hard 0(bytes) limit: soft 0(packets), hard 0(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:29:08 use 2012-10-31 13:29:20 src 0.0.0.0/0 dst 0.0.0.0/0 uid 0 socket out action allow index 3796 priority 0 ptype main share any flag (0x00000000) lifetime config: limit: soft 0(bytes), hard 0(bytes) limit: soft 0(packets), hard 0(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:29:08 use 2012-10-31 13:29:20 So a xfrm policy isn't being created for the connection, even though there is an SA between device and strongswan. Executing ip -s xfrm policy on the android device results in the following output: src 0.0.0.0/0 dst 10.0.0.2/32 uid 0 dir in action allow index 40 priority 2147483648 share any flag (0x00000000) lifetime config: limit: soft (INF)(bytes), hard (INF)(bytes) limit: soft (INF)(packets), hard (INF)(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:42:08 use - tmpl src 96.244.142.28 dst 25.239.33.30 proto esp spi 0x00000000(0) reqid 0(0x00000000) mode tunnel level required share any enc-mask 00000000 auth-mask 00000000 comp-mask 00000000 src 10.0.0.2/32 dst 0.0.0.0/0 uid 0 dir out action allow index 33 priority 2147483648 share any flag (0x00000000) lifetime config: limit: soft (INF)(bytes), hard (INF)(bytes) limit: soft (INF)(packets), hard (INF)(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:42:08 use - tmpl src 25.239.33.30 dst 96.244.142.28 proto esp spi 0x00000000(0) reqid 0(0x00000000) mode tunnel level required share any enc-mask 00000000 auth-mask 00000000 comp-mask 00000000 src 0.0.0.0/0 dst 0.0.0.0/0 uid 0 dir 4 action allow index 28 priority 0 share any flag (0x00000000) lifetime config: limit: soft (INF)(bytes), hard (INF)(bytes) limit: soft (INF)(packets), hard (INF)(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:42:04 use 2012-10-31 13:42:08 src 0.0.0.0/0 dst 0.0.0.0/0 uid 0 dir 3 action allow index 19 priority 0 share any flag (0x00000000) lifetime config: limit: soft (INF)(bytes), hard (INF)(bytes) limit: soft (INF)(packets), hard (INF)(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:42:04 use 2012-10-31 13:42:08 src 0.0.0.0/0 dst 0.0.0.0/0 uid 0 dir 4 action allow index 12 priority 0 share any flag (0x00000000) lifetime config: limit: soft (INF)(bytes), hard (INF)(bytes) limit: soft (INF)(packets), hard (INF)(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:42:04 use 2012-10-31 13:42:06 src 0.0.0.0/0 dst 0.0.0.0/0 uid 0 dir 3 action allow index 3 priority 0 share any flag (0x00000000) lifetime config: limit: soft (INF)(bytes), hard (INF)(bytes) limit: soft (INF)(packets), hard (INF)(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:42:04 use 2012-10-31 13:42:07 Logs from charon: 00[DMN] Starting IKE charon daemon (strongSwan 5.0.0, Linux 3.3.4-5.fc17.x86_64, x86_64) 00[KNL] listening on interfaces: 00[KNL] em1 00[KNL] 96.244.142.28 00[KNL] fe80::224:e8ff:fed2:18b2 00[CFG] loading ca certificates from '/etc/strongswan/ipsec.d/cacerts' 00[CFG] loaded ca certificate "C=CH, O=strongSwan, CN=strongSwan CA" from '/etc/strongswan/ipsec.d/cacerts/caCert.pem' 00[CFG] loading aa certificates from '/etc/strongswan/ipsec.d/aacerts' 00[CFG] loading ocsp signer certificates from '/etc/strongswan/ipsec.d/ocspcerts' 00[CFG] loading attribute certificates from '/etc/strongswan/ipsec.d/acerts' 00[CFG] loading crls from '/etc/strongswan/ipsec.d/crls' 00[CFG] loading secrets from '/etc/strongswan/ipsec.secrets' 00[CFG] loaded RSA private key from '/etc/strongswan/ipsec.d/private/clientKey.pem' 00[CFG] loaded IKE secret for %any 00[CFG] loaded EAP secret for android 00[CFG] loaded EAP secret for android 00[DMN] loaded plugins: charon aes des sha1 sha2 md5 random nonce x509 revocation constraints pubkey pkcs1 pkcs8 pgp dnskey pem openssl fips-prf gmp xcbc cmac hmac attr kernel-netlink resolve socket-default stroke updown xauth-generic 08[NET] waiting for data on sockets 16[LIB] created thread 16 [15338] 16[JOB] started worker thread 16 11[CFG] received stroke: add connection 'android-hybrid' 11[CFG] conn android-hybrid 11[CFG] left=%any 11[CFG] leftsubnet=(null) 11[CFG] leftsourceip=(null) 11[CFG] leftauth=pubkey 11[CFG] leftauth2=(null) 11[CFG] leftid=(null) 11[CFG] leftid2=(null) 11[CFG] leftrsakey=(null) 11[CFG] leftcert=serverCert.pem 11[CFG] leftcert2=(null) 11[CFG] leftca=(null) 11[CFG] leftca2=(null) 11[CFG] leftgroups=(null) 11[CFG] leftupdown=ipsec _updown iptables 11[CFG] right=%any 11[CFG] rightsubnet=(null) 11[CFG] rightsourceip=96.244.142.3 11[CFG] rightauth=xauth 11[CFG] rightauth2=(null) 11[CFG] rightid=%any 11[CFG] rightid2=(null) 11[CFG] rightrsakey=(null) 11[CFG] rightcert=(null) 11[CFG] rightcert2=(null) 11[CFG] rightca=(null) 11[CFG] rightca2=(null) 11[CFG] rightgroups=(null) 11[CFG] rightupdown=(null) 11[CFG] eap_identity=(null) 11[CFG] aaa_identity=(null) 11[CFG] xauth_identity=(null) 11[CFG] ike=aes256-sha1-modp1024 11[CFG] esp=aes128-sha1-modp2048,3des-sha1-modp1536 11[CFG] dpddelay=30 11[CFG] dpdtimeout=150 11[CFG] dpdaction=0 11[CFG] closeaction=0 11[CFG] mediation=no 11[CFG] mediated_by=(null) 11[CFG] me_peerid=(null) 11[CFG] keyexchange=ikev1 11[KNL] getting interface name for %any 11[KNL] %any is not a local address 11[KNL] getting interface name for %any 11[KNL] %any is not a local address 11[CFG] left nor right host is our side, assuming left=local 11[CFG] loaded certificate "C=CH, O=strongSwan, CN=vpn.strongswan.org" from 'serverCert.pem' 11[CFG] id '%any' not confirmed by certificate, defaulting to 'C=CH, O=strongSwan, CN=vpn.strongswan.org' 11[CFG] added configuration 'android-hybrid' 11[CFG] adding virtual IP address pool 'android-hybrid': 96.244.142.3/32 13[CFG] received stroke: add connection 'android2' 13[CFG] conn android2 13[CFG] left=96.244.142.28 13[CFG] leftsubnet=0.0.0.0/0 13[CFG] leftsourceip=(null) 13[CFG] leftauth=pubkey 13[CFG] leftauth2=(null) 13[CFG] leftid=(null) 13[CFG] leftid2=(null) 13[CFG] leftrsakey=(null) 13[CFG] leftcert=serverCert.pem 13[CFG] leftcert2=(null) 13[CFG] leftca=(null) 13[CFG] leftca2=(null) 13[CFG] leftgroups=(null) 13[CFG] leftupdown=ipsec _updown iptables 13[CFG] right=%any 13[CFG] rightsubnet=10.0.0.0/24 13[CFG] rightsourceip=10.0.0.2 13[CFG] rightauth=pubkey 13[CFG] rightauth2=xauth 13[CFG] rightid=(null) 13[CFG] rightid2=(null) 13[CFG] rightrsakey=(null) 13[CFG] rightcert=clientCert.pem 13[CFG] rightcert2=(null) 13[CFG] rightca=(null) 13[CFG] rightca2=(null) 13[CFG] rightgroups=(null) 13[CFG] rightupdown=(null) 13[CFG] eap_identity=(null) 13[CFG] aaa_identity=(null) 13[CFG] xauth_identity=(null) 13[CFG] ike=aes256-sha1-modp1024 13[CFG] esp=aes128-sha1-modp2048,3des-sha1-modp1536 13[CFG] dpddelay=30 13[CFG] dpdtimeout=150 13[CFG] dpdaction=0 13[CFG] closeaction=0 13[CFG] mediation=no 13[CFG] mediated_by=(null) 13[CFG] me_peerid=(null) 13[CFG] keyexchange=ikev0 13[KNL] getting interface name for %any 13[KNL] %any is not a local address 13[KNL] getting interface name for 96.244.142.28 13[KNL] 96.244.142.28 is on interface em1 13[CFG] loaded certificate "C=CH, O=strongSwan, CN=vpn.strongswan.org" from 'serverCert.pem' 13[CFG] id '96.244.142.28' not confirmed by certificate, defaulting to 'C=CH, O=strongSwan, CN=vpn.strongswan.org' 13[CFG] loaded certificate "C=CH, O=strongSwan, CN=client" from 'clientCert.pem' 13[CFG] id '%any' not confirmed by certificate, defaulting to 'C=CH, O=strongSwan, CN=client' 13[CFG] added configuration 'android2' 13[CFG] adding virtual IP address pool 'android2': 10.0.0.2/32 08[NET] received packet: from 208.54.35.241[32235] to 96.244.142.28[500] 15[CFG] looking for an ike config for 96.244.142.28...208.54.35.241 15[CFG] candidate: %any...%any, prio 2 15[CFG] candidate: 96.244.142.28...%any, prio 5 15[CFG] found matching ike config: 96.244.142.28...%any with prio 5 01[JOB] next event in 29s 999ms, waiting 15[IKE] received NAT-T (RFC 3947) vendor ID 15[IKE] received draft-ietf-ipsec-nat-t-ike-02 vendor ID 15[IKE] received draft-ietf-ipsec-nat-t-ike-02\n vendor ID 15[IKE] received draft-ietf-ipsec-nat-t-ike-00 vendor ID 15[IKE] received XAuth vendor ID 15[IKE] received Cisco Unity vendor ID 15[IKE] received DPD vendor ID 15[IKE] 208.54.35.241 is initiating a Main Mode IKE_SA 15[IKE] IKE_SA (unnamed)[1] state change: CREATED => CONNECTING 15[CFG] selecting proposal: 15[CFG] proposal matches 15[CFG] received proposals: IKE:AES_CBC_256/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024, IKE:AES_CBC_256/HMAC_MD5_96/PRF_HMAC_MD5/MODP_1024, IKE:AES_CBC_128/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024, IKE:AES_CBC_128/HMAC_MD5_96/PRF_HMAC_MD5/MODP_1024, IKE:3DES_CBC/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024, IKE:3DES_CBC/HMAC_MD5_96/PRF_HMAC_MD5/MODP_1024, IKE:DES_CBC/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024, IKE:DES_CBC/HMAC_MD5_96/PRF_HMAC_MD5/MODP_1024 15[CFG] configured proposals: IKE:AES_CBC_256/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024, IKE:AES_CBC_128/AES_CBC_192/AES_CBC_256/3DES_CBC/CAMELLIA_CBC_128/CAMELLIA_CBC_192/CAMELLIA_CBC_256/HMAC_MD5_96/HMAC_SHA1_96/HMAC_SHA2_256_128/HMAC_SHA2_384_192/HMAC_SHA2_512_256/AES_XCBC_96/AES_CMAC_96/PRF_HMAC_MD5/PRF_HMAC_SHA1/PRF_HMAC_SHA2_256/PRF_HMAC_SHA2_384/PRF_HMAC_SHA2_512/PRF_AES128_XCBC/PRF_AES128_CMAC/MODP_2048/MODP_2048_224/MODP_2048_256/MODP_1536/MODP_4096/MODP_8192/MODP_1024/MODP_1024_160 15[CFG] selected proposal: IKE:AES_CBC_256/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024 15[NET] sending packet: from 96.244.142.28[500] to 208.54.35.241[32235] 04[NET] sending packet: from 96.244.142.28[500] to 208.54.35.241[32235] 15[MGR] checkin IKE_SA (unnamed)[1] 15[MGR] check-in of IKE_SA successful. 08[NET] received packet: from 208.54.35.241[32235] to 96.244.142.28[500] 08[NET] waiting for data on sockets 07[MGR] checkout IKE_SA by message 07[MGR] IKE_SA (unnamed)[1] successfully checked out 07[NET] received packet: from 208.54.35.241[32235] to 96.244.142.28[500] 07[LIB] size of DH secret exponent: 1023 bits 07[IKE] remote host is behind NAT 07[IKE] sending cert request for "C=CH, O=strongSwan, CN=strongSwan CA" 07[ENC] generating NAT_D_V1 payload finished 07[NET] sending packet: from 96.244.142.28[500] to 208.54.35.241[32235] 07[MGR] checkin IKE_SA (unnamed)[1] 07[MGR] check-in of IKE_SA successful. 04[NET] sending packet: from 96.244.142.28[500] to 208.54.35.241[32235] 08[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] 10[IKE] ignoring certificate request without data 10[IKE] received end entity cert "C=CH, O=strongSwan, CN=client" 10[CFG] looking for XAuthInitRSA peer configs matching 96.244.142.28...208.54.35.241[C=CH, O=strongSwan, CN=client] 10[CFG] candidate "android-hybrid", match: 1/1/2/2 (me/other/ike/version) 10[CFG] candidate "android2", match: 1/20/5/1 (me/other/ike/version) 10[CFG] selected peer config "android2" 10[CFG] certificate "C=CH, O=strongSwan, CN=client" key: 2048 bit RSA 10[CFG] using trusted ca certificate "C=CH, O=strongSwan, CN=strongSwan CA" 10[CFG] checking certificate status of "C=CH, O=strongSwan, CN=client" 10[CFG] ocsp check skipped, no ocsp found 10[CFG] certificate status is not available 10[CFG] certificate "C=CH, O=strongSwan, CN=strongSwan CA" key: 2048 bit RSA 10[CFG] reached self-signed root ca with a path length of 0 10[CFG] using trusted certificate "C=CH, O=strongSwan, CN=client" 10[IKE] authentication of 'C=CH, O=strongSwan, CN=client' with RSA successful 10[ENC] added payload of type ID_V1 to message 10[ENC] added payload of type SIGNATURE_V1 to message 10[IKE] authentication of 'C=CH, O=strongSwan, CN=vpn.strongswan.org' (myself) successful 10[IKE] queueing XAUTH task 10[IKE] sending end entity cert "C=CH, O=strongSwan, CN=vpn.strongswan.org" 10[NET] sending packet: from 96.244.142.28[4500] to 208.54.35.241[35595] 04[NET] sending packet: from 96.244.142.28[4500] to 208.54.35.241[35595] 10[IKE] activating new tasks 10[IKE] activating XAUTH task 10[NET] sending packet: from 96.244.142.28[4500] to 208.54.35.241[35595] 04[NET] sending packet: from 96.244.142.28[4500] to 208.54.35.241[35595] 01[JOB] next event in 3s 999ms, waiting 10[MGR] checkin IKE_SA android2[1] 10[MGR] check-in of IKE_SA successful. 08[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] 08[NET] waiting for data on sockets 12[MGR] checkout IKE_SA by message 12[MGR] IKE_SA android2[1] successfully checked out 12[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] 12[MGR] checkin IKE_SA android2[1] 12[MGR] check-in of IKE_SA successful. 08[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] 16[MGR] checkout IKE_SA by message 16[MGR] IKE_SA android2[1] successfully checked out 16[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] 08[NET] waiting for data on sockets 16[IKE] XAuth authentication of 'android' successful 16[IKE] reinitiating already active tasks 16[IKE] XAUTH task 16[NET] sending packet: from 96.244.142.28[4500] to 208.54.35.241[35595] 04[NET] sending packet: from 96.244.142.28[4500] to 208.54.35.241[35595] 16[MGR] checkin IKE_SA android2[1] 01[JOB] next event in 3s 907ms, waiting 16[MGR] check-in of IKE_SA successful. 08[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] 09[MGR] checkout IKE_SA by message 09[MGR] IKE_SA android2[1] successfully checked out 09[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] .8rS 09[IKE] IKE_SA android2[1] established between 96.244.142.28[C=CH, O=strongSwan, CN=vpn.strongswan.org]...208.54.35.241[C=CH, O=strongSwan, CN=client] 09[IKE] IKE_SA android2[1] state change: CONNECTING => ESTABLISHED 09[IKE] scheduling reauthentication in 3409s 09[IKE] maximum IKE_SA lifetime 3589s 09[IKE] activating new tasks 09[IKE] nothing to initiate 09[MGR] checkin IKE_SA android2[1] 09[MGR] check-in of IKE_SA successful. 09[MGR] checkout IKE_SA 09[MGR] IKE_SA android2[1] successfully checked out 09[MGR] checkin IKE_SA android2[1] 09[MGR] check-in of IKE_SA successful. 01[JOB] next event in 3s 854ms, waiting 08[NET] waiting for data on sockets 08[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] 14[MGR] checkout IKE_SA by message 14[MGR] IKE_SA android2[1] successfully checked out 14[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] 14[IKE] processing INTERNAL_IP4_ADDRESS attribute 14[IKE] processing INTERNAL_IP4_NETMASK attribute 14[IKE] processing INTERNAL_IP4_DNS attribute 14[IKE] processing INTERNAL_IP4_NBNS attribute 14[IKE] processing UNITY_BANNER attribute 14[IKE] processing UNITY_DEF_DOMAIN attribute 14[IKE] processing UNITY_SPLITDNS_NAME attribute 14[IKE] processing UNITY_SPLIT_INCLUDE attribute 14[IKE] processing UNITY_LOCAL_LAN attribute 14[IKE] processing APPLICATION_VERSION attribute 14[IKE] peer requested virtual IP %any 14[CFG] assigning new lease to 'android' 14[IKE] assigning virtual IP 10.0.0.2 to peer 'android' 14[NET] sending packet: from 96.244.142.28[4500] to 208.54.35.241[35595] 14[MGR] checkin IKE_SA android2[1] 14[MGR] check-in of IKE_SA successful. 04[NET] sending packet: from 96.244.142.28[4500] to 208.54.35.241[35595] 08[NET] waiting for data on sockets 01[JOB] got event, queuing job for execution 01[JOB] next event in 91ms, waiting 13[MGR] checkout IKE_SA 13[MGR] IKE_SA android2[1] successfully checked out 13[MGR] checkin IKE_SA android2[1] 13[MGR] check-in of IKE_SA successful. 01[JOB] got event, queuing job for execution 01[JOB] next event in 24s 136ms, waiting 15[MGR] checkout IKE_SA 15[MGR] IKE_SA android2[1] successfully checked out 15[MGR] checkin IKE_SA android2[1] 15[MGR] check-in of IKE_SA successful.

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• A Letter for Your CEO About Social Marketing’s Future

  - by Mike Stiles

  We’ll leave it to you to decide if or how to sneak this in front of them. Dear Chief: This social marketing thing looks serious. It’s gone beyond having a Facebook page and putting our info and a few promotions on it. It’s seriously disrupting how we’ve always done marketing. And its implications reach well beyond marketing. My concern is that we stay positioned ahead of these changes and are prepared to embrace, adapt and capitalize on these new capabilities as opposed to spending valuable time and money trying to shoehorn social into “the way we’ve always done things.” I’m also concerned about what happens if our competition executes on this before we do. The days of being able to impose our ad messaging on the masses to great effect are numbered. The public now has the tech tools and ability to filter out things that are irrelevant to them. And frankly, spending ad dollars to reach unlikely prospects isn’t the most efficient path for us either. Today, our customers have to genuinely love what we do. That starts with a renewed, customer-centric focus on the quality and usability of our product. If their experience with it is bad, they now have very connected, loud voices that will testify against us. We can’t afford that. Next, their customer service experience, before and after the sale, has to be a pleasant surprise. That requires truly knowing our customers and listening to them. Lip service won’t cut it. We have to get and use as much data on the customer as possible, interact with them wherever they want to interact with us, and commit to impressing them. If we do, they’ll get out there and advertise for us. Since peer-to-peer recommendation is the most effective marketing, that’s money in the bank. Social marketing is about forming relationships, same as how individuals use social. We want them to know us, trust us, and get real value from knowing us. That requires honesty and transparency that before now might have been uncomfortable. I propose that if we clearly make everything we do about our customers’ wants and needs, we’ll have nothing to hide. It will solidify customer loyalty, retention, and thus, revenue. These things can’t happen without certain tools and structural changes in the organization. There are social cloud platforms that integrate social management into all of the necessary areas: CRM, customer service, sales, marketing automation, content marketing, ecommerce, etc. This is will give us a real-time, complete view of the customer so their every interaction with us is attentive, personalized, accurate, relevant, and satisfying. Without it, we’re just a collage of disjointed systems, each gathering data that informs only its own departmental silo. The customer is voluntarily giving us everything we need to know about them to win them over, but we have to start listening and putting the pieces together. There’s still time. Brands are coming to terms with this transition to the socially enabled enterprise, but so far they aren’t moving very fast. Like us, they’re dealing with long-entrenched technologies and processes. CMO’s and CIO’s have to form new partnerships. Content operations have to be initiated and properly staffed and funded. Various departments must be able to utilize interconnected big data. What will separate the winners from the losers? Well chief, that’s why I’m writing you. It’s in your hands. These initiatives won’t get the kind of priority and seriousness that inspire actual deadlines & action unless they come from your desk. You have to be the champion of customer centricity. You have to be our change agent. You have to be our innovator. Otherwise, it’s going to be business as usual, and that puts us in a very vulnerable place. Sincerely, Your Team @mikestilesPhoto: Gary Scott, stock.xchng

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• Building on someone else's DefaultButton Silverlight work...

  - by KyleBurns

  This week I was handed a "simple" requirement - have a search screen execute its search when the user pressed the Enter key instead of having to move hands from keyboard to mouse and click Search.  That is a reasonable request that has been met for years both in Windows and Web apps.  I did a quick scan for code to pilfer and found Patrick Cauldwell's Blog posting "A 'Default Button' In Silverlight".  This posting was a great start and I'm glad that the basic work had been done for me, but I ran into one issue - when using bound textboxes (I'm a die-hard MVVM enthusiast when it comes to Silverlight development), the search was being executed before the textbox I was in when the Enter key was pressed updated its bindings.  With a little bit of reflection work, I think I have found a good generic solution that builds upon Patrick's to make it more binding-friendly.  Also, I wanted to set the DefaultButton at a higher level than on each TextBox (or other control for that matter), so the use of mine is intended to be set somewhere such as the LayoutRoot or other high level control and will apply to all controls beneath it in the control tree.  I haven't tested this on controls that treat the Enter key special themselves in the mix. The real change from Patrick's solution here is that in the KeyUp event, I grab the source of the KeyUp event (in my case the textbox containing search criteria) and loop through the static fields on the element's type looking for DependencyProperty instances.  When I find a DependencyProperty, I grab the value and query for bindings.  Each time I find a binding, UpdateSource is called to make sure anything bound to any property of the field has the opportunity to update before the action represented by the DefaultButton is executed. Here's the code: public class DefaultButtonService { public static DependencyProperty DefaultButtonProperty = DependencyProperty.RegisterAttached("DefaultButton", typeof (Button), typeof (DefaultButtonService), new PropertyMetadata (null, DefaultButtonChanged)); private static void DefaultButtonChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { var uiElement = d as UIElement; var button = e.NewValue as Button; if (uiElement != null && button != null) { uiElement.KeyUp += (sender, arg) => { if (arg.Key == Key.Enter) { var element = arg.OriginalSource as FrameworkElement; if (element != null) { UpdateBindings(element); } if (button.IsEnabled) { button.Focus(); var peer = new ButtonAutomationPeer(button); var invokeProv = peer.GetPattern(PatternInterface.Invoke) as IInvokeProvider; if (invokeProv != null) invokeProv.Invoke(); arg.Handled = true; } } }; } } public static DefaultButtonService GetDefaultButton(UIElement obj) { return (DefaultButtonService) obj.GetValue(DefaultButtonProperty); } public static void SetDefaultButton(DependencyObject obj, DefaultButtonService button) { obj.SetValue(DefaultButtonProperty, button); } public static void UpdateBindings(FrameworkElement element) { element.GetType().GetFields(BindingFlags.Public | BindingFlags.Static).ForEach(field => { if (field.FieldType.IsAssignableFrom(typeof(DependencyProperty))) { try { var dp = field.GetValue(null) as DependencyProperty; if (dp != null) { var binding = element.GetBindingExpression(dp); if (binding != null) { binding.UpdateSource(); } } } // ReSharper disable EmptyGeneralCatchClause catch (Exception) // ReSharper restore EmptyGeneralCatchClause { // swallow exceptions } } }); } }

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• Observing flow control idle time in TCP

  - by user12820842

  Previously I described how to observe congestion control strategies during transmission, and here I talked about TCP's sliding window approach for handling flow control on the receive side. A neat trick would now be to put the pieces together and ask the following question - how often is TCP transmission blocked by congestion control (send-side flow control) versus a zero-sized send window (which is the receiver saying it cannot process any more data)? So in effect we are asking whether the size of the receive window of the peer or the congestion control strategy may be sub-optimal. The result of such a problem would be that we have TCP data that we could be transmitting but we are not, potentially effecting throughput. So flow control is in effect: when the congestion window is less than or equal to the amount of bytes outstanding on the connection. We can derive this from args[3]-tcps_snxt - args[3]-tcps_suna, i.e. the difference between the next sequence number to send and the lowest unacknowledged sequence number; and when the window in the TCP segment received is advertised as 0 We time from these events until we send new data (i.e. args[4]-tcp_seq = snxt value when window closes. Here's the script: #!/usr/sbin/dtrace -s #pragma D option quiet tcp:::send / (args[3]-tcps_snxt - args[3]-tcps_suna) = args[3]-tcps_cwnd / { cwndclosed[args[1]-cs_cid] = timestamp; cwndsnxt[args[1]-cs_cid] = args[3]-tcps_snxt; @numclosed["cwnd", args[2]-ip_daddr, args[4]-tcp_dport] = count(); } tcp:::send / cwndclosed[args[1]-cs_cid] && args[4]-tcp_seq = cwndsnxt[args[1]-cs_cid] / { @meantimeclosed["cwnd", args[2]-ip_daddr, args[4]-tcp_dport] = avg(timestamp - cwndclosed[args[1]-cs_cid]); @stddevtimeclosed["cwnd", args[2]-ip_daddr, args[4]-tcp_dport] = stddev(timestamp - cwndclosed[args[1]-cs_cid]); @numclosed["cwnd", args[2]-ip_daddr, args[4]-tcp_dport] = count(); cwndclosed[args[1]-cs_cid] = 0; cwndsnxt[args[1]-cs_cid] = 0; } tcp:::receive / args[4]-tcp_window == 0 && (args[4]-tcp_flags & (TH_SYN|TH_RST|TH_FIN)) == 0 / { swndclosed[args[1]-cs_cid] = timestamp; swndsnxt[args[1]-cs_cid] = args[3]-tcps_snxt; @numclosed["swnd", args[2]-ip_saddr, args[4]-tcp_dport] = count(); } tcp:::send / swndclosed[args[1]-cs_cid] && args[4]-tcp_seq = swndsnxt[args[1]-cs_cid] / { @meantimeclosed["swnd", args[2]-ip_daddr, args[4]-tcp_sport] = avg(timestamp - swndclosed[args[1]-cs_cid]); @stddevtimeclosed["swnd", args[2]-ip_daddr, args[4]-tcp_sport] = stddev(timestamp - swndclosed[args[1]-cs_cid]); swndclosed[args[1]-cs_cid] = 0; swndsnxt[args[1]-cs_cid] = 0; } END { printf("%-6s %-20s %-8s %-25s %-8s %-8s\n", "Window", "Remote host", "Port", "TCP Avg WndClosed(ns)", "StdDev", "Num"); printa("%-6s %-20s %-8d %@-25d %@-8d %@-8d\n", @meantimeclosed, @stddevtimeclosed, @numclosed); } So this script will show us whether the peer's receive window size is preventing flow ("swnd" events) or whether congestion control is limiting flow ("cwnd" events). As an example I traced on a server with a large file transfer in progress via a webserver and with an active ssh connection running "find / -depth -print". Here is the output: ^C Window Remote host Port TCP Avg WndClosed(ns) StdDev Num cwnd 10.175.96.92 80 86064329 77311705 125 cwnd 10.175.96.92 22 122068522 151039669 81 So we see in this case, the congestion window closes 125 times for port 80 connections and 81 times for ssh. The average time the window is closed is 0.086sec for port 80 and 0.12sec for port 22. So if you wish to change congestion control algorithm in Oracle Solaris 11, a useful step may be to see if congestion really is an issue on your network. Scripts like the one posted above can help assess this, but it's worth reiterating that if congestion control is occuring, that's not necessarily a problem that needs fixing. Recall that congestion control is about controlling flow to prevent large-scale drops, so looking at congestion events in isolation doesn't tell us the whole story. For example, are we seeing more congestion events with one control algorithm, but more drops/retransmission with another? As always, it's best to start with measures of throughput and latency before arriving at a specific hypothesis such as "my congestion control algorithm is sub-optimal".

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• Routing audio from GSM module to a Bluetooth HandsFree device

  - by Shaihi

  I have a system with the following setup: I use: Windows CE 6 R3 Microsoft's Bluetooth stack including all profiles Motorola H500 The Audio Gateway service is up and running (checked through services list in cmd) GSM Module is functional - I am able to set outgoing calls and to answer calls. Bluetooth is functional - the A2DP profile plays music to Motorola headphones (can't remember the model right now) I want to hold a conversation using a headset device. I have included all Bluetooth components in the catalog. I pair the device using the Control Panel applet. When I press the button on the Motorla device to answer a call I get a print by the Audio Gateway: BTAGSVC: ConnectionEvent. BTAGSVC: SCOListenThread_Int - Connection Event. BTAGSVC: ConnectionEvent. BTAGSVC: SCOListenThread_Int - Connection Event. BTAGSVC: ConnectionEvent. BTAGSVC: A Bluetooth peer device has connected to the Audio Gateway. BTAGSVC: Could not open registry key for BT Addr: 2. BTAGSVC: The peer device was not accepted since the user has never confirmed it as a device to be used. So my questions are as follows: What do I need to do to pair the device with the Audio Gateway? Once my device is paired, do I need to set anything else up? (except for the GSM module of course)

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• XSP2 crashes serving static images

  - by Dawkins

  Hi, Requesting a simple HTML page with a jpg image makes XSP2 crash. If I remove the image from the HTML then the page is served OK all the time. The version is XSP2 2.0 mono 2.6.1. the version 2.4.2.2 in the same machine works fine. I have tested it in two different machines, both Windows Vista Business SP1. Anyone has experienced the same? Any clue of what can be the problem? Below is the stack trace displayed by the console: (The line in Spanish says "it has been forced the interruption of an existing connection by the remote host") EDIT: since another user is having the same problem I have submited a bug to Novell and created a litle zip to reproduce the problem: https://bugzilla.novell.com/show_bug.cgi?id=582162 Peer unexpectedly closed the connection on write. Closing our end. System.IO.IOException: Write failure ---> System.Net.Sockets.SocketException: Se ha forzado la interrupción de una conexión existente por el host remoto. at System.Net.Sockets.Socket.Send (System.Byte[] buf, Int32 offset, Int32 size , SocketFlags flags) [0x00000] in <filename unknown>:0 at System.Net.Sockets.NetworkStream.Write (System.Byte[] buffer, Int32 offset, Int32 size) [0x00000] in <filename unknown>:0 --- End of inner exception stack trace --- at System.Net.Sockets.NetworkStream.Write (System.Byte[] buffer, Int32 offset, Int32 size) [0x00000] in <filename unknown>:0 at Mono.WebServer.XSPWorker.Write (System.Byte[] buffer, Int32 position, Int32 size) [0x00000] in <filename unknown>:0 Peer unexpectedly closed the connection on write. Closing our end. System.ObjectDisposedException: The object was used after being disposed. at System.Net.Sockets.NetworkStream.CheckDisposed () [0x00000] in <filename un known>:0 at System.Net.Sockets.NetworkStream.Write (System.Byte[] buffer, Int32 offset, Int32 size) [0x00000] in <filename unknown>:0 at Mono.WebServer.XSPWorker.Write (System.Byte[] buffer, Int32 position, Int32 size) [0x00000] in <filename unknown>:0 Thank you.

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• Creating circular generic references

  - by M. Jessup

  I am writing an application to do some distributed calculations in a peer to peer network. In defining the network I have two class the P2PNetwork and P2PClient. I want these to be generic and so have the definitions of: P2PNetwork<T extends P2PClient<? extends P2PNetwork<T>>> P2PClient<T extends P2PNetwork<? extends T>> with P2PClient defining a method of setNetwork(T network). What I am hoping to describe with this code is: A P2PNetwork is constituted of clients of a certain type A P2PClient may only belong to a network whose clients consist of the same type as this client (the circular-reference) This seems correct to me but if I try to create a non-generic version such as MyP2PClient<MyP2PNetwork<? extends MyP2PClient>> myClient; and other variants I receive numerous errors from the compiler. So my questions are as follows: Is a generic circular reference even possible (I have never seen anything explicitly forbidding it)? Is the above generic definition a correct definition of such a circular relationship? If it is valid, is it the "correct" way to describe such a relationship (i.e. is there another valid definition, which is stylistically preferred)? How would I properly define a non-generic instance of a Client and Server given the proper generic definition?

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• Accessing functions in a swf-file through javascript [chatroulette.com]

  - by RadiantHeart

  Lately I have been interested in the code behind chatroulette.com. As you probably know it is a peer-to-peer webcam-chat-service written in actionscript, as I understand. What i have been wondering about is weather its possible to extract the ip-address of whomever you are currently communicating with. I have seen services that do that, but they require that you install a program that runs alongside on your computer sniffing UDP-packages. I was wondering if there was a simpler method. What I do know is that the javascript on the page communicates with the application via "ExternalInterface". On this area I am pretty much a novice but according to my limited understanding you cant get information from the flash-application unless you have configured a listener for a call from javascript and then attach a callback to that event. Is this correct or can you access public functions and variables directly through javascript? There is for example a public function like this: public function get outgoingAddress():String{ return (this.__info.outgoingAddress); } Can it be accessed directly through javascript? If it cant be done so easily, is it possible to decompile the .swf-file, change it (add some functions) and recompile it and run it instead? I am hoping someone can satisfy my curiosity here. Here are two links to a decompiled version of the swf-file. The first with line numbering and one without. With line numbering ˜ 3.5 Mbyte Without line numbering ˜ 2.1 Mbyte

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• Inheritance issue with ivar on the iPhone

  - by Buffalo

  I am using the BLIP/MYNetwork library to establish a basic tcp socket connection between the iPhone and my computer. So far, the code builds and runs correctly in simulator but deploying to device yields the following error: error: property 'delegate' attempting to use ivar '_delegate' declared in super class of 'TCPConnection' @interface TCPConnection : TCPEndpoint { @private TCPListener *_server; IPAddress *_address; BOOL _isIncoming, _checkedPeerCert; TCPConnectionStatus _status; TCPReader *_reader; TCPWriter *_writer; NSError *_error; NSTimeInterval _openTimeout; } /** The delegate object that will be called when the connection opens, closes or receives messages. */ @property (assign) id<TCPConnectionDelegate> delegate; /** The delegate messages sent by TCPConnection. All methods are optional. */ @protocol TCPConnectionDelegate <NSObject> @optional /** Called after the connection successfully opens. */ - (void) connectionDidOpen: (TCPConnection*)connection; /** Called after the connection fails to open due to an error. */ - (void) connection: (TCPConnection*)connection failedToOpen: (NSError*)error; /** Called when the identity of the peer is known, if using an SSL connection and the SSL settings say to check the peer's certificate. This happens, if at all, after the -connectionDidOpen: call. */ - (BOOL) connection: (TCPConnection*)connection authorizeSSLPeer: (SecCertificateRef)peerCert; /** Called after the connection closes. You can check the connection's error property to see if it was normal or abnormal. */ - (void) connectionDidClose: (TCPConnection*)connection; @end @interface TCPEndpoint : NSObject { NSMutableDictionary *_sslProperties; id _delegate; } - (void) tellDelegate: (SEL)selector withObject: (id)param; @end Does anyone know how I would fix this? Would I simply declare _delegate as a public property of the base class "TCPEndPoint"? Thanks for the help ya'll!

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• Two part question about submitting bluetooth-enabled apps for the iPhone

  - by Kyle

  I have a couple questions about submitting blue-tooth enabled apps on the iPhone. I want to first say that bluetooth is merely an option in the application. The application does not completely rely on bluetooth as there are many modes the user can go in. First, do they require you to have the "peer-peer" key set in UIRequiredDeviceCapabilities even if bluetooth interface options can be disabled or hidden for non-bluetooth enabled devices? Basically, it's just an OPTION in the game and there are many other modes the player can play.. Does Apple not allow you to do that? I'm just curious, because it seems like something they would do. Adding to that, how do you check for it's functionality at runtime? In essence, how do you check UIRequiredDeviceCapabilities at runtime. I'm aware of checking iPhone device types, so would that be a proper way of going about it? I'm also sort of unaware which devices can run bluetooth gamekit, there doesn't seem to be a proper reference at the SDK site, or I'm unable to find it. Thanks for reading! [edit] I can confirm the existance of somebody rejected for submitting a bluetooth enabled app which didn't work on a iPhone 2G.. Of course, they didn't say if that was the MAIN function of the app, though.

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• what's the performance difference between int and varchar for primary keys

  - by user568576

  I need to create a primary key scheme for a system that will need peer to peer replication. So I'm planning to combine a unique system ID and a sequential number in some way to come up with unique ID's. I want to make sure I'll never run out of ID's, so I'm thinking about using a varchar field, since I could always add another character if I start running out. But I've read that integers are better optimized for this. So I have some questions... 1) Are integers really better optimized? And if they are, how much of a performance difference is there between varchars and integers? I'm going to use firebird for now. But I may switch later. Or possibly support multiple db's. So I'm looking for generalizations, if that's possible. 2) If integers are significantly better optimized, why is that? And is it likely that varchars will catch up in the future, so eventually it won't matter anyway? My varchar keys won't have any meaning, except for the unique system ID part. But I may want to obscure that somehow. Also, I plan to efficiently use all the bits of each character. I don't, for example, plan to code the integer 123 as the character string "123". So I don't think varchars will require more space than integers.

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• How to get a UIAlertView's result??

  - by cocos2dbeginner

  Hi, I implemented the gamekit. All works fine now. But if the user presses on send the data will instantly send to the other iphone/ipod/ipad and it will instantly written. So now i wanted to implemenr a confirm screen for the receiver. In my receiveData method (from the gamekit) i have an array. If the user presses yes the array will be written into a file.if not it wont be written into a file. #pragma mark - #pragma mark - GKreceiveData - (void) receiveData:(NSData *)data fromPeer:(NSString *)peer inSession: (GKSession *)session context:(void *)context { NSDictionary *dict = [NSKeyedUnarchiver unarchiveObjectWithData:data]; UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Incoming Set" message:[NSString stringWithFormat:@"%@ wants to send you a Set named: \n\n %@",[session displayNameForPeer:peer], [dict valueForKey:@"SetName"]] delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"OK", nil]; [alert show]; [alert release]; } - (void)alertView:(UIAlertView *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex { // the user clicked one of the OK/Cancel buttons if (buttonIndex == 0) { //NSLog(@"ok"); //this should happen if the user presses on ok on the alertview. [dataArray addObject:dict]; //i can't acess "dict" } else { //NSLog(@"cancel"); } } Do you see the problem?? What can I do??

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• How stressful can a paid side project be?

  - by systempuntoout

  I have developed several side projects for my pleasure at home after my daily job hours and I have never been under pressure with them because you know, if it does not work It can be fixed tomorrow with no rush. I'm tempted to start a paid side project with a contractor and I would like to know, from your experience, if it could be bearable or too stressful. With this paid project I can decide the total amount of hours work in a week upfront and, speaking of my daily job, it has peeks of stressful weeks but also quiet days. How stressful can be a paid side project?

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• An MCM exam, Rob? Really?

  - by Rob Farley

  I took the SQL 2008 MCM Knowledge exam while in Seattle for the PASS Summit ten days ago. I wasn’t planning to do it, but I got persuaded to try. I was meaning to write this post to explain myself before the result came out, but it seems I didn’t get typing quickly enough. Those of you who know me will know I’m a big fan of certification, to a point. I’ve been involved with Microsoft Learning to help create exams. I’ve kept my certifications current since I first took an exam back in 1998, sitting many in beta, across quite a variety of topics. I’ve probably become quite good at them – I know I’ve definitely passed some that I really should’ve failed. I’ve also written that I don’t think exams are worth studying for. (That’s probably not entirely true, but it depends on your motivation. If you’re doing learning, I would encourage you to focus on what you need to know to do your job better. That will help you pass an exam – but the two skills are very different. I can coach someone on how to pass an exam, but that’s a different kind of teaching when compared to coaching someone about how to do a job. For example, the real world includes a lot of “it depends”, where you develop a feel for what the influencing factors might be. In an exam, its better to be able to know some of the “Don’t use this technology if XYZ is true” concepts better.) As for the Microsoft Certified Master certification… I’m not opposed to the idea of having the MCM (or in the future, MCSM) cert. But the barrier to entry feels quite high for me. When it was first introduced, the nearest testing centres to me were in Kuala Lumpur and Manila. Now there’s one in Perth, but that’s still a big effort. I know there are options in the US – such as one about an hour’s drive away from downtown Seattle, but it all just seems too hard. Plus, these exams are more expensive, and all up – I wasn’t sure I wanted to try them, particularly with the fact that I don’t like to study. I used to study for exams. It would drive my wife crazy. I’d have some exam scheduled for some time in the future (like the time I had two booked for two consecutive days at TechEd Australia 2005), and I’d make sure I was ready. Every waking moment would be spent pouring over exam material, and it wasn’t healthy. I got shaken out of that, though, when I ended up taking four exams in those two days in 2005 and passed them all. I also worked out that if I had a Second Shot available, then failing wasn’t a bad thing at all. Even without Second Shot, I’m much more okay about failing. But even just trying an MCM exam is a big effort. I wouldn’t want to fail one of them. Plus there’s the illusion to maintain. People have told me for a long time that I should just take the MCM exams – that I’d pass no problem. I’ve never been so sure. It was almost becoming a pride-point. Perhaps I should fail just to demonstrate that I can fail these things. Anyway – boB Taylor (@sqlboBT) persuaded me to try the SQL 2008 MCM Knowledge exam at the PASS Summit. They set up a testing centre in one of the room there, so it wasn’t out of my way at all. I had to squeeze it in between other commitments, and I certainly didn’t have time to even see what was on the syllabus, let alone study. In fact, I was so exhausted from the week that I fell asleep at least once (just for a moment though) during the actual exam. Perhaps the questions need more jokes, I’m not sure. I knew if I failed, then I might disappoint some people, but that I wouldn’t’ve spent a great deal of effort in trying to pass. On the other hand, if I did pass I’d then be under pressure to investigate the MCM Lab exam, which can be taken remotely (therefore, a much smaller amount of effort to make happen). In some ways, passing could end up just putting a bunch more pressure on me. Oh, and I did.

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• An MCM exam, Rob? Really?

  - by Rob Farley

  I took the SQL 2008 MCM Knowledge exam while in Seattle for the PASS Summit ten days ago. I wasn’t planning to do it, but I got persuaded to try. I was meaning to write this post to explain myself before the result came out, but it seems I didn’t get typing quickly enough. Those of you who know me will know I’m a big fan of certification, to a point. I’ve been involved with Microsoft Learning to help create exams. I’ve kept my certifications current since I first took an exam back in 1998, sitting many in beta, across quite a variety of topics. I’ve probably become quite good at them – I know I’ve definitely passed some that I really should’ve failed. I’ve also written that I don’t think exams are worth studying for. (That’s probably not entirely true, but it depends on your motivation. If you’re doing learning, I would encourage you to focus on what you need to know to do your job better. That will help you pass an exam – but the two skills are very different. I can coach someone on how to pass an exam, but that’s a different kind of teaching when compared to coaching someone about how to do a job. For example, the real world includes a lot of “it depends”, where you develop a feel for what the influencing factors might be. In an exam, its better to be able to know some of the “Don’t use this technology if XYZ is true” concepts better.) As for the Microsoft Certified Master certification… I’m not opposed to the idea of having the MCM (or in the future, MCSM) cert. But the barrier to entry feels quite high for me. When it was first introduced, the nearest testing centres to me were in Kuala Lumpur and Manila. Now there’s one in Perth, but that’s still a big effort. I know there are options in the US – such as one about an hour’s drive away from downtown Seattle, but it all just seems too hard. Plus, these exams are more expensive, and all up – I wasn’t sure I wanted to try them, particularly with the fact that I don’t like to study. I used to study for exams. It would drive my wife crazy. I’d have some exam scheduled for some time in the future (like the time I had two booked for two consecutive days at TechEd Australia 2005), and I’d make sure I was ready. Every waking moment would be spent pouring over exam material, and it wasn’t healthy. I got shaken out of that, though, when I ended up taking four exams in those two days in 2005 and passed them all. I also worked out that if I had a Second Shot available, then failing wasn’t a bad thing at all. Even without Second Shot, I’m much more okay about failing. But even just trying an MCM exam is a big effort. I wouldn’t want to fail one of them. Plus there’s the illusion to maintain. People have told me for a long time that I should just take the MCM exams – that I’d pass no problem. I’ve never been so sure. It was almost becoming a pride-point. Perhaps I should fail just to demonstrate that I can fail these things. Anyway – boB Taylor (@sqlboBT) persuaded me to try the SQL 2008 MCM Knowledge exam at the PASS Summit. They set up a testing centre in one of the room there, so it wasn’t out of my way at all. I had to squeeze it in between other commitments, and I certainly didn’t have time to even see what was on the syllabus, let alone study. In fact, I was so exhausted from the week that I fell asleep at least once (just for a moment though) during the actual exam. Perhaps the questions need more jokes, I’m not sure. I knew if I failed, then I might disappoint some people, but that I wouldn’t’ve spent a great deal of effort in trying to pass. On the other hand, if I did pass I’d then be under pressure to investigate the MCM Lab exam, which can be taken remotely (therefore, a much smaller amount of effort to make happen). In some ways, passing could end up just putting a bunch more pressure on me. Oh, and I did.

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• HDFC Bank's Journey to Oracle Private Database Cloud

  - by Nilesh Agrawal

  One of the key takeaways from a recent post by Sushil Kumar is the importance of business initiative that drives the transformational journey from legacy IT to enterprise private cloud. The journey that leads to a agile, self-service and efficient infrastructure with reduced complexity and enables IT to deliver services more closely aligned with business requirements. Nilanjay Bhattacharjee, AVP, IT of HDFC Bank presented a real-world case study based on one such initiative in his Oracle OpenWorld session titled "HDFC BANK Journey into Oracle Database Cloud with EM 12c DBaaS". The case study highlighted in this session is from HDFC Bank’s Lending Business Segment, which comprises roughly 50% of Bank’s top line. Bank’s Lending Business is always under pressure to launch “New Schemes” to compete and stay ahead in this segment and IT has to keep up with this challenging business requirement. Lending related applications are highly dynamic and go through constant changes and every single and minor change in each related application is required to be thoroughly UAT tested certified before they are certified for production rollout. This leads to a constant pressure in IT for rapid provisioning of UAT databases on an ongoing basis to enable faster time to market. Nilanjay joined Sushil Kumar, VP, Product Strategy, Oracle, during the Enterprise Manager general session at Oracle OpenWorld 2012. Let's watch what Nilanjay had to say about their recent Database cloud deployment. “Agility” in launching new business schemes became the key business driver for private database cloud adoption in the Bank. Nilanjay spent an hour discussing it during his session. Let's look at why Database-as-a-Service(DBaaS) model was need of the hour in this case  - Average 3 days to provision UAT Database for Loan Management Application Silo’ed UAT environment with Average 30% utilization Compliance requirement consume UAT testing resources DBA activities leads to $$ paid to SI for provisioning databases manually Overhead in managing configuration drift between production and test environments Rollout impact/delay on new business initiatives The private database cloud implementation progressed through 4 fundamental phases - Standardization, Consolidation, Automation, Optimization of UAT infrastructure. Project scoping was carried out and end users and stakeholders were engaged early on right from planning phase and including all phases of implementation. Standardization and Consolidation phase involved multiple iterations of planning to first standardize on infrastructure, db versions, patch levels, configuration, IT processes etc and with database level consolidation project onto Exadata platform. It was also decided to have existing AIX UAT DB landscape covered and EM 12c DBaaS solution being platform agnostic supported this model well. Automation and Optimization phase provided the necessary Agility, Self-Service and efficiency and this was made possible via EM 12c DBaaS. EM 12c DBaaS Self-Service/SSA Portal was setup with required zones, quotas, service templates, charge plan defined. There were 2 zones implemented - Exadata zone  primarily for UAT and benchmark testing for databases running on Exadata platform and second zone was for AIX setup to cover other databases those running on AIX. Metering and Chargeback/Showback capabilities provided business and IT the framework for cloud optimization and also visibility into cloud usage. More details on UAT cloud implementation, related building blocks and EM 12c DBaaS solution are covered in Nilanjay's OpenWorld session here. Some of the key Benefits achieved from UAT cloud initiative are - New business initiatives can be easily launched due to rapid provisioning of UAT Databases [ ~3 hours ] Drastically cut down $$ on SI for DBA Activities due to Self-Service Effective usage of infrastructure leading to  better ROI Empowering  consumers to provision database using Self-Service Control on project schedule with DB end date aligned to project plan submitted during provisioning Databases provisioned through Self-Service are monitored in EM and auto configured for Alerts and KPI Regulatory requirement of database does not impact existing project in queue This table below shows typical list of activities and tasks involved when a end user requests for a UAT database. EM 12c DBaaS solution helped reduce UAT database provisioning time from roughly 3 days down to 3 hours and this timing also includes provisioning time for database with production scale data (ranging from 250 G to 2 TB of data) - And it's not just about time to provision,  this initiative has enabled an agile, efficient and transparent UAT environment where end users are empowered with real control of cloud resources and IT's role is shifted as enabler of strategic services instead of being administrator of all user requests. The strong collaboration between IT and business community right from planning to implementation to go-live has played the key role in achieving this common goal of enterprise private cloud. Finally, real cloud is here and this cloud is accompanied with rain (business benefits) as well ! For more information, please go to Oracle Enterprise Manager  web page or  follow us at :  Twitter | Facebook | YouTube | Linkedin | Newsletter

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• Utilities Worldwide Succeed with Oracle Utilities Applications

  - by caroline.yu

  More than 50 utilities worldwide have selected or implemented Oracle Utilities applications in the current fiscal year to date to respond to environmental imperatives, adapt to changing business conditions, meet and exceed customer expectations, implement smart grid components and address operational issues. Customers who have recently selected or implemented Oracle Utilities applications include: Acea Distribuzione, California Water Service Company, City of Winnipeg, Denver Water, Enersource Hydro, GasTerra, Modesto Irrigation District, Rappahannock Electric Cooperative, San Francisco Public Utilities Commission and Western Power. "Around the world, utilities are under pressure to address customer demands, improve environmental quality and comply with regulatory requirements. Oracle Utilities provides a choice of mission-critical applications to deliver tangible business results. Our recent traction in the industry illustrates the solid value we bring to our customers," said Stephan Scholl, senior vice president and general manager, Oracle Utilities.

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• What do you think of the following job specification?

  - by m.edmondson

  Just received this out of the blue from a recruiter - a number of things stand out to me: PERSON PROFILE Hard working - with a stay until the job in done mentality Thrive on the pressure of tight weekly development deadlines Good attention to detail to ensure bug free development Ability to test all development work from user's perpective Ability to think like a user as well as a developer Good communication skills to understand new funcationality and bugs Flexibility to contribute outside main responsbilities when needed. BENEFITS Salary dependant on skills Contributary Pension with 4% contribution from employer (after 1 year of service) Private Healthcase (after 1 year of service) 20 days holiday + 3-4 days holiday between Christmas and New year - 1 day extra holiday available each quarter you don't have a day off sick (and an additional day if you are not off sick for the whole year ). Would you want to work here? From what I can see they want a work-a-holic who will crawl out of his death bed in order to not lose holiday entitlement.

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• Command works partially when run from startup applications

  - by Gaurav Butola

  I have this script (or rather a set of commands which has permission to execute) to enable two finger scrolling and two finger tap = right click The script is located in /home/gaurav/Multigesture/multigesture. When I run the following command in terminal, two finger scrolling and two finger tap = right click start working. I have to run this command each time I boot my laptop. "/home/gaurav/Multigesture/multigesture" So I put this command in the startup applications so that I dont have to run the command each time I boot but when I reboot two finger scrolling is not working, only two finger tap = right click works. What could be the problem, If the command works fine from the terminal then how come it is working partially when i put it into startup applications. Here is the content of the script xinput set-int-prop "SynPS/2 Synaptics TouchPad" "Two-Finger Scrolling" 8 1 xinput set-int-prop "SynPS/2 Synaptics TouchPad" "Synaptics Two-Finger Scrolling" 8 1 1 xinput set-int-prop "SynPS/2 Synaptics TouchPad" "Synaptics Two-Finger Pressure" 32 10 xinput set-int-prop "SynPS/2 Synaptics TouchPad" "Synaptics Two-Finger Width" 32 8 PS. the file which has all the commands (script's) name is multitouch

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• Choosing the Right Financial Consolidation and Reporting Solution

  Financial reporting requirements for publicly-held companies are changing and getting more complex. With the upcoming convergence of US GAAP and IFRS, demand for more detailed non-financial disclosures, and the SEC mandate for XBRL financial executives are under pressure to ensure they have the right systems in place to support current and future reporting requirements. Tune into this conversation with Rich Clayton, VP of Enterprise Performance Management and BI products for Oracle, and Annette Melatti, Senior Director of Product Marketing for Financial Applications to learn about the latest market requirements, what capabilities are provided by Oracle's General Ledgers, and how customers can extend their investment in Oracle General Ledger solutions with Oracle's market-leading financial close and reporting products.

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• Contracting rate for Android development

  - by Robottinosino

  I am a developer, maybe I have a project to work on, not sure how much to "charge" for my work.... Help me find the price? Looking for an contracting rate interval, expressed in EUR, to offer for an Android development gig. Location: Europe, off-site (telecommuting) Environment: Android + HTTP back-end Length of project: 1 month Rate currency: EUR Rate measure: daily or hourly Other skills required: UI design, basic J2EE, web services Client profile: medium business (100+ employees) Previous published apps: 1, on G-Play Design work: partially already done, data flow is established, data models to be built Required graphics/multimedia elements: provided by the client Source control: remove over SSH Team size: one person in development, others (unknown) for marketing, copy, etc. Risk factor: medium Client reputation: modest but established Potential for continued work: absent (for now) Internationalisation/localisation: no Native code (C/C++,...): none, only Android SDK, pure Java Working culture: (based on initial discussion) - high pressure Other projects in the pipe: zero Opportunity to learn from the project or build new skills: 5% Negotiating experience: good Cost of accessories: (licenses, device to debug on) zero If I need to be more precise, please just say how and I will be.

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