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• Complex ModelBinders and being in charge of creating part of the model

  - by Kieron

  Hi, I've a scenario where I need to bind to an interface - in order to create the correct type, I've got a custom model binder that knows how to create the correct concrete type (which can differ). However, the type created never has the fields correctly filled in. I know I'm missing something blindingly simple here, but can anyone tell me why or at least what I need to do for the model binder to carry on it's work and bind the properties? public class ProductModelBinder : DefaultModelBinder { override public object BindModel (ControllerContext controllerContext, ModelBindingContext bindingContext) { if (bindingContext.ModelType == typeof (IProduct)) { var content = GetProduct (bindingContext); return content; } var result = base.BindModel (controllerContext, bindingContext); return result; } IProduct GetProduct (ModelBindingContext bindingContext) { var idProvider = bindingContext.ValueProvider.GetValue ("Id"); var id = (Guid)idProvider.ConvertTo (typeof (Guid)); var repository = RepositoryFactory.GetRepository<IProductRepository> (); var product = repository.Get (id); return product; } } The Model in my case is a complex type that has an IProduct property, and it's those values I need filled in. Model: [ProductBinder] public class Edit : IProductModel { public Guid Id { get; set; } public byte[] Version { get; set; } public IProduct Product { get; set; } }

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• MVC moq unit test the object before RedirecToAction()

  - by Daoming Yang

  I want to test the data inside the "item" object before it redirect to another action. public ActionResult WebPageEdit(WebPage item, FormCollection form) { if (ModelState.IsValid) { item.Description = Utils.CrossSiteScriptingAttackCheck(item.Description); item.Content = Utils.CrossSiteScriptingAttackCheck(item.Content); item.Title = item.Title.Trim(); item.DateUpdated = DateTime.Now; // Other logic stuff here webPagesRepository.Save(item); return RedirectToAction("WebPageList"); } Here is my Test method: [Test] public void Admin_WebPageEdit_Save() { var controller = new AdminController(); controller.webPagesRepository = DataMock.WebPageDataInit(); controller.categoriesRepository = DataMock.WebPageCategoryDataInit(); FormCollection form = DataMock.CreateWebPageFormCollection(); RedirectToRouteResult actionResult = (RedirectToRouteResult)controller.WebPageEdit(webPagesRepository.Get(1), form); Assert.IsNotNull(actionResult); Assert.AreEqual("WebPageList", actionResult.RouteValues["action"]); var item = ((ViewResult)controller.WebPageEdit(webPagesRepository.Get(1), form)).ViewData.Model as WebPage; Assert.NotNull(item); Assert.AreEqual(2, item.CategoryID); } It failed at this line: var item = ((ViewResult)controller.WebPageEdit(webPagesRepository.Get(1), form)).ViewData.Model as WebPage; I am thinking about is there any ways to test the "item" object before it redirect to other actions?

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• Linux - Only first virtual interface can ping external gateway

  - by husvar

  I created 3 virtual interfaces with different mac addresses all linked to the same physical interface. I see that they successfully arp for the gw and they can ping (the request is coming in the packet capture in wireshark). However the ping utility does not count the responses. Does anyone knows the issue? I am running Ubuntu 14.04 in a VmWare. root@ubuntu:~# ip link sh 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000 link/ether 00:0c:29:bc:fc:8b brd ff:ff:ff:ff:ff:ff root@ubuntu:~# ip addr sh 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 link/ether 00:0c:29:bc:fc:8b brd ff:ff:ff:ff:ff:ff inet6 fe80::20c:29ff:febc:fc8b/64 scope link valid_lft forever preferred_lft forever root@ubuntu:~# ip route sh root@ubuntu:~# ip link add link eth0 eth0.1 addr 00:00:00:00:00:11 type macvlan root@ubuntu:~# ip link add link eth0 eth0.2 addr 00:00:00:00:00:22 type macvlan root@ubuntu:~# ip link add link eth0 eth0.3 addr 00:00:00:00:00:33 type macvlan root@ubuntu:~# ip -4 link sh 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000 link/ether 00:0c:29:bc:fc:8b brd ff:ff:ff:ff:ff:ff 18: eth0.1@eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default link/ether 00:00:00:00:00:11 brd ff:ff:ff:ff:ff:ff 19: eth0.2@eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default link/ether 00:00:00:00:00:22 brd ff:ff:ff:ff:ff:ff 20: eth0.3@eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default link/ether 00:00:00:00:00:33 brd ff:ff:ff:ff:ff:ff root@ubuntu:~# ip -4 addr sh 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever root@ubuntu:~# ip -4 route sh root@ubuntu:~# dhclient -v eth0.1 Internet Systems Consortium DHCP Client 4.2.4 Copyright 2004-2012 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Listening on LPF/eth0.1/00:00:00:00:00:11 Sending on LPF/eth0.1/00:00:00:00:00:11 Sending on Socket/fallback DHCPDISCOVER on eth0.1 to 255.255.255.255 port 67 interval 3 (xid=0x568eac05) DHCPREQUEST of 192.168.1.145 on eth0.1 to 255.255.255.255 port 67 (xid=0x568eac05) DHCPOFFER of 192.168.1.145 from 192.168.1.254 DHCPACK of 192.168.1.145 from 192.168.1.254 bound to 192.168.1.145 -- renewal in 1473 seconds. root@ubuntu:~# dhclient -v eth0.2 Internet Systems Consortium DHCP Client 4.2.4 Copyright 2004-2012 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Listening on LPF/eth0.2/00:00:00:00:00:22 Sending on LPF/eth0.2/00:00:00:00:00:22 Sending on Socket/fallback DHCPDISCOVER on eth0.2 to 255.255.255.255 port 67 interval 3 (xid=0x21e3114e) DHCPREQUEST of 192.168.1.146 on eth0.2 to 255.255.255.255 port 67 (xid=0x21e3114e) DHCPOFFER of 192.168.1.146 from 192.168.1.254 DHCPACK of 192.168.1.146 from 192.168.1.254 bound to 192.168.1.146 -- renewal in 1366 seconds. root@ubuntu:~# dhclient -v eth0.3 Internet Systems Consortium DHCP Client 4.2.4 Copyright 2004-2012 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Listening on LPF/eth0.3/00:00:00:00:00:33 Sending on LPF/eth0.3/00:00:00:00:00:33 Sending on Socket/fallback DHCPDISCOVER on eth0.3 to 255.255.255.255 port 67 interval 3 (xid=0x11dc5f03) DHCPREQUEST of 192.168.1.147 on eth0.3 to 255.255.255.255 port 67 (xid=0x11dc5f03) DHCPOFFER of 192.168.1.147 from 192.168.1.254 DHCPACK of 192.168.1.147 from 192.168.1.254 bound to 192.168.1.147 -- renewal in 1657 seconds. root@ubuntu:~# ip -4 link sh 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000 link/ether 00:0c:29:bc:fc:8b brd ff:ff:ff:ff:ff:ff 18: eth0.1@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN mode DEFAULT group default link/ether 00:00:00:00:00:11 brd ff:ff:ff:ff:ff:ff 19: eth0.2@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN mode DEFAULT group default link/ether 00:00:00:00:00:22 brd ff:ff:ff:ff:ff:ff 20: eth0.3@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN mode DEFAULT group default link/ether 00:00:00:00:00:33 brd ff:ff:ff:ff:ff:ff root@ubuntu:~# ip -4 addr sh 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever 18: eth0.1@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default inet 192.168.1.145/24 brd 192.168.1.255 scope global eth0.1 valid_lft forever preferred_lft forever 19: eth0.2@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default inet 192.168.1.146/24 brd 192.168.1.255 scope global eth0.2 valid_lft forever preferred_lft forever 20: eth0.3@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default inet 192.168.1.147/24 brd 192.168.1.255 scope global eth0.3 valid_lft forever preferred_lft forever root@ubuntu:~# ip -4 route sh default via 192.168.1.254 dev eth0.1 192.168.1.0/24 dev eth0.1 proto kernel scope link src 192.168.1.145 192.168.1.0/24 dev eth0.2 proto kernel scope link src 192.168.1.146 192.168.1.0/24 dev eth0.3 proto kernel scope link src 192.168.1.147 root@ubuntu:~# arping -c 5 -I eth0.1 192.168.1.254 ARPING 192.168.1.254 from 192.168.1.145 eth0.1 Unicast reply from 192.168.1.254 [58:98:35:57:a0:70] 6.936ms Unicast reply from 192.168.1.254 [58:98:35:57:a0:70] 2.986ms Unicast reply from 192.168.1.254 [58:98:35:57:a0:70] 0.654ms Unicast reply from 192.168.1.254 [58:98:35:57:a0:70] 5.137ms Unicast reply from 192.168.1.254 [58:98:35:57:a0:70] 2.426ms Sent 5 probes (1 broadcast(s)) Received 5 response(s) root@ubuntu:~# arping -c 5 -I eth0.2 192.168.1.254 ARPING 192.168.1.254 from 192.168.1.146 eth0.2 Unicast reply from 192.168.1.254 [58:98:35:57:a0:70] 5.665ms Unicast reply from 192.168.1.254 [58:98:35:57:a0:70] 3.753ms Unicast reply from 192.168.1.254 [58:98:35:57:a0:70] 16.500ms Unicast reply from 192.168.1.254 [58:98:35:57:a0:70] 3.287ms Unicast reply from 192.168.1.254 [58:98:35:57:a0:70] 32.438ms Sent 5 probes (1 broadcast(s)) Received 5 response(s) root@ubuntu:~# arping -c 5 -I eth0.3 192.168.1.254 ARPING 192.168.1.254 from 192.168.1.147 eth0.3 Unicast reply from 192.168.1.254 [58:98:35:57:a0:70] 4.422ms Unicast reply from 192.168.1.254 [58:98:35:57:a0:70] 2.429ms Unicast reply from 192.168.1.254 [58:98:35:57:a0:70] 2.321ms Unicast reply from 192.168.1.254 [58:98:35:57:a0:70] 40.423ms Unicast reply from 192.168.1.254 [58:98:35:57:a0:70] 2.268ms Sent 5 probes (1 broadcast(s)) Received 5 response(s) root@ubuntu:~# tcpdump -n -i eth0.1 -v & [1] 5317 root@ubuntu:~# ping -c5 -q -I eth0.1 192.168.1.254 PING 192.168.1.254 (192.168.1.254) from 192.168.1.145 eth0.1: 56(84) bytes of data. tcpdump: listening on eth0.1, link-type EN10MB (Ethernet), capture size 65535 bytes 13:18:37.612558 IP (tos 0x0, ttl 64, id 2595, offset 0, flags [DF], proto ICMP (1), length 84) 192.168.1.145 > 192.168.1.254: ICMP echo request, id 5318, seq 2, length 64 13:18:37.618864 IP (tos 0x68, ttl 64, id 14493, offset 0, flags [none], proto ICMP (1), length 84) 192.168.1.254 > 192.168.1.145: ICMP echo reply, id 5318, seq 2, length 64 13:18:37.743650 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.87 tell 192.168.1.86, length 46 13:18:38.134997 IP (tos 0x0, ttl 128, id 23547, offset 0, flags [none], proto UDP (17), length 229) 192.168.1.86.138 > 192.168.1.255.138: NBT UDP PACKET(138) 13:18:38.614580 IP (tos 0x0, ttl 64, id 2596, offset 0, flags [DF], proto ICMP (1), length 84) 192.168.1.145 > 192.168.1.254: ICMP echo request, id 5318, seq 3, length 64 13:18:38.793479 IP (tos 0x68, ttl 64, id 14495, offset 0, flags [none], proto ICMP (1), length 84) 192.168.1.254 > 192.168.1.145: ICMP echo reply, id 5318, seq 3, length 64 13:18:39.151282 IP6 (class 0x68, hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::5a98:35ff:fe57:e070 > ff02::1:ff6b:e9b4: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has 2001:818:d812:da00:8ae3:abff:fe6b:e9b4 source link-address option (1), length 8 (1): 58:98:35:57:a0:70 13:18:39.615612 IP (tos 0x0, ttl 64, id 2597, offset 0, flags [DF], proto ICMP (1), length 84) 192.168.1.145 > 192.168.1.254: ICMP echo request, id 5318, seq 4, length 64 13:18:39.746981 IP (tos 0x68, ttl 64, id 14496, offset 0, flags [none], proto ICMP (1), length 84) 192.168.1.254 > 192.168.1.145: ICMP echo reply, id 5318, seq 4, length 64 --- 192.168.1.254 ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 4008ms rtt min/avg/max/mdev = 2.793/67.810/178.934/73.108 ms root@ubuntu:~# killall tcpdump >> /dev/null 2>&1 9 packets captured 12 packets received by filter 0 packets dropped by kernel [1]+ Done tcpdump -n -i eth0.1 -v root@ubuntu:~# tcpdump -n -i eth0.2 -v & [1] 5320 root@ubuntu:~# ping -c5 -q -I eth0.2 192.168.1.254 PING 192.168.1.254 (192.168.1.254) from 192.168.1.146 eth0.2: 56(84) bytes of data. tcpdump: listening on eth0.2, link-type EN10MB (Ethernet), capture size 65535 bytes 13:18:41.536874 ARP, Ethernet (len 6), IPv4 (len 4), Reply 192.168.1.254 is-at 58:98:35:57:a0:70, length 46 13:18:41.536933 IP (tos 0x0, ttl 64, id 2599, offset 0, flags [DF], proto ICMP (1), length 84) 192.168.1.146 > 192.168.1.254: ICMP echo request, id 5321, seq 1, length 64 13:18:41.539255 IP (tos 0x68, ttl 64, id 14507, offset 0, flags [none], proto ICMP (1), length 84) 192.168.1.254 > 192.168.1.146: ICMP echo reply, id 5321, seq 1, length 64 13:18:42.127715 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.87 tell 192.168.1.86, length 46 13:18:42.511725 IP (tos 0x0, ttl 64, id 2600, offset 0, flags [DF], proto ICMP (1), length 84) 192.168.1.146 > 192.168.1.254: ICMP echo request, id 5321, seq 2, length 64 13:18:42.514385 IP (tos 0x68, ttl 64, id 14527, offset 0, flags [none], proto ICMP (1), length 84) 192.168.1.254 > 192.168.1.146: ICMP echo reply, id 5321, seq 2, length 64 13:18:42.743856 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.87 tell 192.168.1.86, length 46 13:18:43.511727 IP (tos 0x0, ttl 64, id 2601, offset 0, flags [DF], proto ICMP (1), length 84) 192.168.1.146 > 192.168.1.254: ICMP echo request, id 5321, seq 3, length 64 13:18:43.513768 IP (tos 0x68, ttl 64, id 14528, offset 0, flags [none], proto ICMP (1), length 84) 192.168.1.254 > 192.168.1.146: ICMP echo reply, id 5321, seq 3, length 64 13:18:43.637598 IP (tos 0x0, ttl 128, id 23551, offset 0, flags [none], proto UDP (17), length 225) 192.168.1.86.17500 > 255.255.255.255.17500: UDP, length 197 13:18:43.641185 IP (tos 0x0, ttl 128, id 23552, offset 0, flags [none], proto UDP (17), length 225) 192.168.1.86.17500 > 192.168.1.255.17500: UDP, length 197 13:18:43.641201 IP (tos 0x0, ttl 128, id 23553, offset 0, flags [none], proto UDP (17), length 225) 192.168.1.86.17500 > 255.255.255.255.17500: UDP, length 197 13:18:43.743890 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.87 tell 192.168.1.86, length 46 13:18:44.510758 IP (tos 0x0, ttl 64, id 2602, offset 0, flags [DF], proto ICMP (1), length 84) 192.168.1.146 > 192.168.1.254: ICMP echo request, id 5321, seq 4, length 64 13:18:44.512892 IP (tos 0x68, ttl 64, id 14538, offset 0, flags [none], proto ICMP (1), length 84) 192.168.1.254 > 192.168.1.146: ICMP echo reply, id 5321, seq 4, length 64 13:18:45.510794 IP (tos 0x0, ttl 64, id 2603, offset 0, flags [DF], proto ICMP (1), length 84) 192.168.1.146 > 192.168.1.254: ICMP echo request, id 5321, seq 5, length 64 13:18:45.519701 IP (tos 0x68, ttl 64, id 14539, offset 0, flags [none], proto ICMP (1), length 84) 192.168.1.254 > 192.168.1.146: ICMP echo reply, id 5321, seq 5, length 64 13:18:49.287554 IP6 (class 0x68, hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::5a98:35ff:fe57:e070 > ff02::1:ff6b:e9b4: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has 2001:818:d812:da00:8ae3:abff:fe6b:e9b4 source link-address option (1), length 8 (1): 58:98:35:57:a0:70 13:18:50.013463 IP (tos 0x0, ttl 255, id 50737, offset 0, flags [DF], proto UDP (17), length 73) 192.168.1.146.5353 > 224.0.0.251.5353: 0 [2q] PTR (QM)? _ipps._tcp.local. PTR (QM)? _ipp._tcp.local. (45) 13:18:50.218874 IP6 (class 0x68, hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::5a98:35ff:fe57:e070 > ff02::1:ff6b:e9b4: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has 2001:818:d812:da00:8ae3:abff:fe6b:e9b4 source link-address option (1), length 8 (1): 58:98:35:57:a0:70 13:18:51.129961 IP6 (class 0x68, hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::5a98:35ff:fe57:e070 > ff02::1:ff6b:e9b4: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has 2001:818:d812:da00:8ae3:abff:fe6b:e9b4 source link-address option (1), length 8 (1): 58:98:35:57:a0:70 13:18:52.197074 IP6 (hlim 255, next-header UDP (17) payload length: 53) 2001:818:d812:da00:200:ff:fe00:22.5353 > ff02::fb.5353: [udp sum ok] 0 [2q] PTR (QM)? _ipps._tcp.local. PTR (QM)? _ipp._tcp.local. (45) 13:18:54.128240 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.87 tell 192.168.1.86, length 46 --- 192.168.1.254 ping statistics --- 5 packets transmitted, 0 received, 100% packet loss, time 4000ms root@ubuntu:~# killall tcpdump >> /dev/null 2>&1 13:18:54.657731 IP6 (class 0x68, hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::5a98:35ff:fe57:e070 > ff02::1:ff6b:e9b4: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has 2001:818:d812:da00:8ae3:abff:fe6b:e9b4 source link-address option (1), length 8 (1): 58:98:35:57:a0:70 13:18:54.743174 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.87 tell 192.168.1.86, length 46 25 packets captured 26 packets received by filter 0 packets dropped by kernel [1]+ Done tcpdump -n -i eth0.2 -v root@ubuntu:~# tcpdump -n -i eth0.3 icmp & [1] 5324 root@ubuntu:~# ping -c5 -q -I eth0.3 192.168.1.254 PING 192.168.1.254 (192.168.1.254) from 192.168.1.147 eth0.3: 56(84) bytes of data. tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on eth0.3, link-type EN10MB (Ethernet), capture size 65535 bytes 13:18:56.373434 IP 192.168.1.147 > 192.168.1.254: ICMP echo request, id 5325, seq 1, length 64 13:18:57.372116 IP 192.168.1.147 > 192.168.1.254: ICMP echo request, id 5325, seq 2, length 64 13:18:57.381263 IP 192.168.1.254 > 192.168.1.147: ICMP echo reply, id 5325, seq 2, length 64 13:18:58.371141 IP 192.168.1.147 > 192.168.1.254: ICMP echo request, id 5325, seq 3, length 64 13:18:58.373275 IP 192.168.1.254 > 192.168.1.147: ICMP echo reply, id 5325, seq 3, length 64 13:18:59.371165 IP 192.168.1.147 > 192.168.1.254: ICMP echo request, id 5325, seq 4, length 64 13:18:59.373259 IP 192.168.1.254 > 192.168.1.147: ICMP echo reply, id 5325, seq 4, length 64 13:19:00.371211 IP 192.168.1.147 > 192.168.1.254: ICMP echo request, id 5325, seq 5, length 64 13:19:00.373278 IP 192.168.1.254 > 192.168.1.147: ICMP echo reply, id 5325, seq 5, length 64 --- 192.168.1.254 ping statistics --- 5 packets transmitted, 1 received, 80% packet loss, time 4001ms rtt min/avg/max/mdev = 13.666/13.666/13.666/0.000 ms root@ubuntu:~# killall tcpdump >> /dev/null 2>&1 9 packets captured 10 packets received by filter 0 packets dropped by kernel [1]+ Done tcpdump -n -i eth0.3 icmp root@ubuntu:~# arp -n Address HWtype HWaddress Flags Mask Iface 192.168.1.254 ether 58:98:35:57:a0:70 C eth0.1 192.168.1.254 ether 58:98:35:57:a0:70 C eth0.2 192.168.1.254 ether 58:98:35:57:a0:70 C eth0.3

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• Creating a horizontal fluid layout in css that works like a table

  - by ivordesign

  Basically what i am after is a fluid solution in css, that is similar to the table layout below.The principal behind this layout is 3x3 grid where by a user can add content into the first fluid area and it will expand the complete width of the page. But if that user decides that he wants content in the 2nd and 3rd area, all 3 td's fill up 33% of the width. Effectively what i am asking is how do i create a css based layout that can do the same as the table layout? <table width="100%"> <tr> <td id="leftZone" > fluid area here </td> <td > fluid area here </td> <td id="rightZone"> fluid area here </td> </tr> </table> <table width="100%"> <tr> <td valign="top" > fluid area here </td> <td > fluid area here </td> <td > fluid area here </td> </tr> </table> <table width="100%"> <tr> <td > fluid area here </td> <td > fluid area here </td> <td > fluid area here </td> </tr> </table>

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• Web scraping etiquette

  - by Ash

  I'm considering writing a simple web scraping application to extract information from a website that does not seem to specifically prohibit this. I've checked for other alternatives (eg RSS, web service) to get this information, but there are none available at this stage. Despite this I've also developed/maintained a few websites myself and so I realize that if web scraping is done naively/greedily it can slow things down for other users and generally become a nuisance. So, what etiquette is involved in terms of: Number of requests per second/minute/hour. HTTP User Agent content. HTTP Referer content. HTTP Cache settings. Buffer size for larger files/resources. Legalities and licensing issues. Good tools or design approaches to use. Robots.txt, is this relevant for web scraping or just crawlers/spiders? Compression such as GZip in requests. Update Found this relevant question on Meta: Etiquette of Screen Scaping StackOverflow. Jeff Atwood's answer has some helpful recommendations. Other related StackOverflow questions: Options for html scraping Legalities of screen scraping

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• search form in html/php via ajax

  - by fusion

  i've a search form wherein the database query has been coded in php and the html file calls this php file via ajax to display the results in the search form. the problem is, i would like the result to be displayed in the same form as search.html; yet while the ajax works, it goes to search.php to display the results. search.html: <!DOCTYPE html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <script src="scripts/search_ajax.js" type="text/javascript"></script> </head> <body> <form id="submitForm" method="post"> <div class="wrapper"> <div class="field"> <input name="search" id="search" /> </div><br /> <input id="button1" type="submit" value="Submit" class="submit" onclick="run_query();" /><br /> </div> <div id="searchContainer"> </div> </form> </body> </html> if i add action="search.php" to the form tag, it displays the result but on search.php. i'd like it to display on the same form [i.e search.html, and not search.php] if i just add the javascript function [as done above], it displays nothing on search.html

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• UIScrollView without paging but with touchesmoved

  - by BittenApple

  I have a UIScrollView that I use to display PDF pages in. I don't want to use paging (yet). I want to display content based on touchesmoved event (so after horizontal swipe). This works (sort of), but instead of catching a single swipe and showing 1 page, the swipe seems to gets broken into 100s of pieces and 1 swipe acts as if you're moving a slider! I have no clue what am I doing wrong. Here's the experimental "display next page" code which works on single taps: - (void)nacrtajNovuStranicu:(CGContextRef)myContext { CGContextTranslateCTM(myContext, 0.0, self.bounds.size.height); CGContextScaleCTM(myContext, 1.0, -1.0); CGContextSetRGBFillColor(myContext, 255, 255, 255, 1); CGContextFillRect(myContext, CGRectMake(0, 0, 320, 412)); size_t brojStranica = CGPDFDocumentGetNumberOfPages(pdfFajl); if(pageNumber < brojStranica){ pageNumber ++; } else{ // kraj PDF fajla, ne listaj dalje. } CGPDFPageRef page = CGPDFDocumentGetPage(pdfFajl, pageNumber); CGContextSaveGState(myContext); CGAffineTransform pdfTransform = CGPDFPageGetDrawingTransform(page, kCGPDFCropBox, self.bounds, 0, true); CGContextConcatCTM(myContext, pdfTransform); CGContextDrawPDFPage(myContext, page); CGContextRestoreGState(myContext); //osvjezi displej [self setNeedsDisplay]; } Here's the swiping code: - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { [super touchesBegan:touches withEvent:event]; UITouch *touch = [touches anyObject]; gestureStartPoint = [touch locationInView:self]; } - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [touches anyObject]; CGPoint currentPosition = [touch locationInView:self]; CGFloat deltaX = fabsf(gestureStartPoint.x - currentPosition.x); CGFloat deltaY = fabsf(gestureStartPoint.y - currentPosition.y); if (deltaX >= kMinimumGestureLength && deltaY <= kMaximumVariance) { [self nacrtajNovuStranicu:(CGContextRef)UIGraphicsGetCurrentContext()]; } } The code sits in UIView which displays the PDF content, perhaps I should place it into UIScrollView or is the "display next page" code wrong?

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• Binding WPF menu items to WPF Tab Control Items collection

  - by William

  I have a WPF Menu and a Tab control. I would like the list of menu items to be generated from the collection of TabItems on my tab control. I am binding my tab control to a collection to generate the TabItems. I have a TabItem style that uses a ContentPresenter to display the TabItem text in a TextBlock. When I bind the tab items to my menu the menu items are blank. I assume the menu items are looking for the Header property of the TabItems which I am not using. Is there a workaround for my scenario? Is it possible to bind to the Header property of the tab item, when I do not know the number of tabs in advance? Below is a copy of my xaml declarations. Tab Control and items: <DataTemplate x:Key="ClosableTabItemTemplate"> <DockPanel HorizontalAlignment="Stretch"> <Button Command="{Binding Path=CloseWorkSpaceCommand}" Content="X" Cursor="Hand" DockPanel.Dock="Right" Focusable="False" FontFamily="Courier" FontSize="9" FontWeight="Bold" Margin="10,1,0,0" Padding="0" VerticalContentAlignment="Bottom" Width="16" Height="16" Background="Red" /> <ContentPresenter HorizontalAlignment="Center" Content="{Binding Path=DisplayName}"> <ContentPresenter.Resources> <Style TargetType="{x:Type TextBlock}"/> </ContentPresenter.Resources> </ContentPresenter> </DockPanel> </DataTemplate> <DataTemplate x:Key="WorkspacesTemplate"> <TabControl IsSynchronizedWithCurrentItem="True" ItemsSource="{Binding}" ItemTemplate="{StaticResource ClosableTabItemTemplate}" Margin="10" Background="#4C4C4C"/> </DataTemplate> My Menu <Menu Background="Transparent"> <MenuItem Style="{StaticResource TabMenuButtonStyle}" ItemsSource="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type TabControl}}, Path=Items}" ItemContainerStyle="{StaticResource TabMenuItem}"> </MenuItem> </Menu>

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• Emphasized text in docbook, fo, pdf out put.

  - by Mica

  I am trying to emphasize a character of some static text to render into the footer of my pdf, but can't figure out the right combination of tags in my xsl. How can I accomplish this? Example: <!-- Footer content --> <xsl:template name="footer.content"> <xsl:param name="pageclass" select="''"/> <xsl:param name="sequence" select="''"/> <xsl:param name="position" select="''"/> <xsl:param name="gentext-key" select="''"/> <fo:block> <xsl:choose> ... <xsl:when test="$sequence = 'odd' and $position = 'left'"> <xsl:text>&#x00A9;<emphasis>My</emphasis>Company</xsl:text> </xsl:when> ... </xsl:choose> </fo:block> </xsl:template> This example generates an error in xsltproc. Help!

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• how do you set the admin password on openldap 2.4

  - by dingfelder

  I am getting started with openLdap 2.4 and am having a bit of trouble, all the examples I see seem to refer to previous versions which used the text config file slapd.conf but from what I see on discussions about v2.4, this has been deprecated. I thought prehaps I needed to add a user, and log in as them but when I try and run an ldapadd command, I get a prompt to enter a password: Enter LDAP Password: ldap_bind: Invalid credentials (49) Notes: I installed openldap server via yum (in fedora 15), and have installed phpldapadminbut also can try things on the command line if anyone has suggestions. After installing and starting I get the following response from a search: # ldapsearch -x -b '' -s base '(objectclass=*)' namingContexts # extended LDIF # LDAPv3 # base <> with scope baseObject # filter: (objectclass=*) # requesting: namingContexts dn: namingContexts: dc=my-domain,dc=com # search result search: 2 result: 0 Success # numResponses: 2 # numEntries: 1 I am glad to remove and reinstall the server if that helps, can anyone provide a link to tips that works for version 2.4 for a new setup?

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• How do I stop inheritance in xaml?

  - by cfouche

  Hi Let's say I have some Control that has been disabled. It contains a bunch of elements, but I want one of those child elements to remain enabled. Something like this: <ContentControl IsEnabled="False"> <Border> <Button Content="Button" IsEnabled="True"/> </Border> </ContentControl> So in this example, the Button's IsEnabled="True" setting gets overridden by its parent. Is there a way of stopping this from happening? This seems like a strange thing to be doing, but I have a situation where, when a Control is disabled and a user mouses down on it, I still want an event to be triggered. I read in WPF Unleashed that wrapping something in a Frame control, "..isolates the content from the rest of the UI [and] properties that would normally be inherited down the element tree stop when they reach the Frame", but wrapping the Button in the example above in a Frame doesn't work. Am I on the wrong track here?

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• Indy IdSMTP and attachments in Thunderbird

  - by Lobuno

  Hello! Using the latest snapshot of Indy tiburon on D2010. A very simple project like: var stream: TFileStream; (s is TidSMTP and m is TidMessage) begin s.Connect; Stream := TFileStream.Create('c:\Test.zip', fmOpenRead or fmShareExclusive); try with TIdAttachmentMemory.Create(m.MessageParts, Stream) do begin ContentType := 'application/x-zip-compressed'; Name := ExtractFilePath('C:\'); //' FileName := 'Test.zip'; end; finally FreeAndNil(Stream); end; s.Send(m); s.Disconnect(); end; Everything works Ok in Outlook, The bat!, OE, yahoo, etc... but in Thunderbird the attachment is not shown. Looking at the source of the message in Thunderbird, the attachment is there. The only difference I can find between messages send by indy and other clients is that Indy messages have this order: Content-Type: multipart/mixed; boundary="Z\=_7oeC98yIhktvxiwiDTVyhv9R9gwkwT1" MIME-Version: 1.0 while any other clients have the order: MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="Z\=_7oeC98yIhktvxiwiDTVyhv9R9gwkwT1" Don't know if THAT is the source of the problem, but if so: is this a bug on Thunderbird or is this a problem with indy which "malforms" the headers of the messages? Is this order a problem? Does that matter anyway?

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• Flash CS3/AS3 - How to Mask Nested MovieClips in External Classes

  - by Max Jackson

  I have a number of external class files that make up (or are trying to build) a portfolio. One of the class files for this project is a Menu.as class I tried extends, but I'm yet to use extends to where it doesn't become a ball of tangled holiday cheer. So my main portfolio class (the one where I'm assembling everything) calls an instance of the Menu class. From the Preloader through the Portfolio class into the Menu class is where I'm passing the content because I want to package things properly. This is Menu content, so naturally I want to position it in a properly names spot. I'm trying to reveal this Menu in a mask and I'm getting the old #1009 error. In a trace, this will work: trace(site_mc.menu_mc.mainMask_mc); // returns [object mainMask_mc_4] However, when I try to truncate the string into a single compact_mc... compactMenu_mc = site_mc.menu_mc.mainMask_mc; trace(compact_mc); // it won't trace (#1009). I said to hell with it, but now I need to have one MovieClip mask another. So I figure I can't go all... parent.parent.parent.clip_mc.mask = parent.parent.parent.masked_mc Probably because of datatyping and whatever else. I hate to be vague, but I'm new and have been working like gangbusters for days to get this portfolio up. Any suggestions or pointers on things my noob brain might've missed are given much thanks. :)

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• iptables openvpn forward selectively from eth to tun

  - by Bryan Hunt

  Simple for those who know, indecipherable for those who don't... I'm running openVPN on (hypothetical) 66.66.66.66, I want to FORWARD incoming traffic, arriving on interface eth0 to interface tun0. It would also be nice to filter - based on destination IP address. I'm doing the NAT later on, but like to lock down early wherever possible. So onto the main course... This works: #Enable forwarding from eth0 to tun0 iptables -A FORWARD -i eth0 -o tun+ -j ACCEPT But this doesn't pass any packets whatsoever: #Stricter version iptables -A FORWARD -i eth0 -o tun+ --dst 66.66.66.66 -j ACCEPT Am I being unacceptably foolish?

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• ASIHTTPRequest POST splits up header + data?

  - by chris.o.

  Hi, I am using ASIHTTPRequest to POST data to a remote server on iPhone 4.2.1. When I make the following post request to our server, I get a 400 response (I removed the IP address): NSString dataString = @"data1=00&data2=00&data3=00"; ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:[NSURL URLWithString:[NSString stringWithFormat:<ipremoved>]]]; [request appendPostData:[dataString dataUsingEncoding:NSUTF8StringEncoding]]; [request setRequestMethod:@"POST"]; [request addRequestHeader:@"User-Agent" value:@"iphone app"]; [request addRequestHeader:@"Content-Type" value:@"application/octet-stream"]; request.delegate = self; [request startAsynchronous]; When I send the same data using curl, I receive a 200 response: curl -H "User-Agent: iphone app" -H "Accept:" -H "Content-Type:application/octet-stream" --data-ascii "data1=00&data2=00&data3=00" --location <ipremoved> -v My colleague is stating that, in the failure case, the ASIHTTPRequest requires two socket reads: one for the header and one for the data. Apparently the server is not presently equipped to parse this correctly, so I am trying to work around it. If I setup a proxy between iPhone and my Mac and run Paros (to see packets), the problem goes away. Paros combine the header and data so that it is all acquired by the server in a single socket read. I've tried a few things suggested in other posts including disabling persistent connections, but I am not having any luck. I've also tried doing a ASIHTTPFormRequest, but the server does not like the generated data format. Any suggestions would be appreciated. Thanks.

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• using wget against protected site with NTLM

  - by Joey V.

  Trying to mirror a local intranet site and have found previous questions using 'wget'. It works great with sites that are anonymous, but I have not been able to use it against a site that is expecting username\password (IIS with Integrated Windows Authentication). Here is what I pass in: wget -c --http-user='domain\user' --http-password=pwd http://local/site -dv Here is the debug output (note I replaced some with dummy values obviously): Setting --verbose (verbose) to 1 DEBUG output created by Wget 1.11.4 on Windows-MSVC. --2009-07-14 09:39:04-- http://local/site Host `local' has not issued a general basic challenge. Resolving local... seconds 0.00, x.x.x.x Caching local = x.x.x.x Connecting to local|x.x.x.x|:80... seconds 0.00, connected. Created socket 1896. Releasing 0x003e32b0 (new refcount 1). ---request begin--- GET /site/ HTTP/1.0 User-Agent: Wget/1.11.4 Accept: */* Host: local Connection: Keep-Alive ---request end--- HTTP request sent, awaiting response... ---response begin--- HTTP/1.1 401 Access Denied Server: Microsoft-IIS/5.1 Date: Tue, 14 Jul 2009 13:39:04 GMT WWW-Authenticate: Negotiate WWW-Authenticate: NTLM Content-Length: 4431 Content-Type: text/html ---response end--- 401 Access Denied Closed fd 1896 Unknown authentication scheme. Authorization failed.

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• Fancybox troubles

  - by Abs

  Hello all, I am trying to implement a fancybox. http://fancybox.net/howto I want to call this function on an an element. Full JS file. http://fancybox.net/js/fancybox/jquery.fancybox-1.2.1.js $.fn.fancybox = function(settings) { I have done this: $(document).ready(function() { $("a#inline").fn.fancybox(); }); However, I keep getting this error (through firebug): $("a#inline").fn is undefined [Break on this error] $("a#inline").fn.fancybox(); What does this mean? I am basically having instantiating problems. Please help. EDIT The HTML file: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Technologies</title> <link href="style.css" rel="stylesheet" type="text/css" /> <script type="text/javascript" src="fancy/jquery-1.3.2.min.js"></script> <script type="text/javascript" src="fancy/jquery.fancybox-1.2.1.js"></script> <link rel="stylesheet" href="fancy/fancybox.css" type="text/css" media="screen" /> <script type="text/javascript"> $(document).ready(function() { $("a#inline").fancybox(); }); </script> </head> <body> <?php include_once ("header.php"); ?> <div id="channel_calc"> How many Channels do I need? <span id="yellow"><a id="inline" href="#ddm">Channel Calculator</a></span> </div>

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• display image in a grid using extjs

  - by Abisha

  I am new to extjs. I want to display icon images for each grid elements. can you please healp me anybody? i am getting the image path from an xml file. my code is below. here i am displaying image path. i have to replace it by displaying image. Ext.onReady(function(){ var store = new Ext.data.Store({ url: 'new_frm.xml', reader: new Ext.data.XmlReader({ record: 'message', fields: [{name: 'first'},{name: 'last'},{name: 'company'},{name: 'email'},{name: 'gender'},{name: 'form-file'},{name: 'state'},{name: 'Live'},{name: 'content'}] }) }); var grid = new Ext.grid.GridPanel({ store: store, columns: [ {header: "First Name", width: 120, dataIndex: 'first', sortable: true}, {header: "Last Name", width: 180, dataIndex: 'last', sortable: true}, {header: "Company", width: 115, dataIndex: 'company', sortable: true}, {header: "Email", width: 100, dataIndex: 'email', sortable: true}, {header: "Gender", width: 100, dataIndex: 'gender', sortable: true}, {header: "Photo", width: 100, dataIndex: 'form-file', sortable: true}, {header: "State", width: 100, dataIndex: 'state', sortable: true}, {header: "Living with", width: 100, dataIndex: 'Live', sortable: true}, {header: "Commands", width: 100, dataIndex: 'content', sortable: true} ], renderTo:'example-grid', height:200 }); store.load(); });

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• How to get a file path from c drive in android

  - by Thomas Mathew

  I was trying to extract the content of a pdf file and display its content in android. I tired the code in java and it worked.But when i am coding it in android, its not displaying anything. I think, its not getting the file path. Is there any way by which i could get a file stored in c drive and store its path in a string? The code is given below: public class hello extends Activity { /** Called when the activity is first created. */ private static String INPUTFILE = "FirstPdf.pdf"; String str; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); try { Document document = new Document(); document.open(); PdfReader reader = new PdfReader(INPUTFILE); int n = reader.getNumberOfPages(); str=PdfTextExtractor.getTextFromPage(reader, 2); } catch (IOException e) { //e.printStackTrace(); } catch (InterruptedException e) { e.printStackTrace(); } TextView tv = new TextView(this); tv.setText(str); setContentView(tv); } } I would be very grateful if the problem is solved.

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• how to pass password text while calling java-cxf webservice from php

  - by Darpan Desai

  hi, i have developed my webservice in java-cxf which returns java.util.List. This webservice is password enabled. that means i have used org.apache.cxf.ws.security.wss4j.WSS4JInInterceptor for security purpose. Now i want to call this webservice from php. but i am not able to do so. Without security settings i am able to access my webservice using nusoap. but when i enabled security feture (interceptor) in webservice, i am getting error like ns1:InvalidSecurity An error was discovered processing the header and i am getting response as follows: HTTP/1.1 500 Internal Server Error Server: Apache-Coyote/1.1 Content-Type: text/xml;charset=ISO-8859-1 Content-Length: 361 Date: Fri, 18 Jun 2010 08:53:54 GMT Connection: close < soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"< soap:Body< soap:Fault< faultcode xmlns:ns1="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" ns1:InvalidSecurity< /faultcode< faultstringAn error was discovered processing the <wsse:Security header< /faultstring< /soap:Fault< /soap:Body any help will be appriciated thanks in advance Darpan Desai

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• How do I send traffic from my Mac's wifi to my VPN client?

  - by Heath Borders

  I need to connect my Android to a Juniper VPN. Unfortunately, Juniper doesn't support Android on our VPN version. We've already put in a feature request for it, but we have no idea how long it will take to be complete. Right now, I connect to the Juniper VPN with a Juniper Mac OSX VPN client that uses Java to install kernel extensions to start and stop the VPN. Thus, I can't use the Network panel in System Preferences to create a VPN device, which means it won't show up in the 'Sharing' panel's Internet Sharing Share your connection from: menu, as suggested here. I used newproc.d to see what /usr/libexec/InternetSharing did when it ran, and it runs the following processes: 2013 Nov 1 00:26:54 5565 <1> 64b /usr/libexec/launchdadd 2013 Nov 1 00:26:55 5566 <1> 64b /usr/libexec/InternetSharing 2013 Nov 1 00:26:56 5568 <5566> 64b natpmpd -d -y bridge100 en0 2013 Nov 1 00:26:56 5569 <1> 64b /usr/libexec/pfd -d 2013 Nov 1 00:26:56 5567 <5566> 64b bootpd -d -P My Juniper VPN client creates the following devices (output of ifconfig): jnc0: flags=841<UP,RUNNING,SIMPLEX> mtu 1400 inet 10.61.9.61 netmask 0xffffffff open (pid 920) jnc1: flags=841<UP,RUNNING,SIMPLEX> mtu 1450 closed So, it seems like I should just be able to do this and have everything work: sudo killall -9 natpmpd sudo /usr/libexec/natpmpd -y bridge100 jnc0 My android connected fine and could hit public internet sites, but it couldn't hit private VPN sites. I assume this is because I need to change the routes that /usr/libexec/InternetSharing sets up. This is the output from sudo pfctl -s all before starting Internet Sharing: No ALTQ support in kernel ALTQ related functions disabled TRANSLATION RULES: nat-anchor "com.apple/*" all rdr-anchor "com.apple/*" all FILTER RULES: scrub-anchor "com.apple/*" all fragment reassemble anchor "com.apple/*" all DUMMYNET RULES: dummynet-anchor "com.apple/*" all INFO: Status: Disabled for 0 days 00:11:02 Debug: Urgent State Table Total Rate current entries 0 searches 22875 34.6/s inserts 1558 2.4/s removals 1558 2.4/s Counters match 2005 3.0/s bad-offset 0 0.0/s fragment 0 0.0/s short 0 0.0/s normalize 0 0.0/s memory 0 0.0/s bad-timestamp 0 0.0/s congestion 0 0.0/s ip-option 12 0.0/s proto-cksum 0 0.0/s state-mismatch 1 0.0/s state-insert 0 0.0/s state-limit 0 0.0/s src-limit 0 0.0/s synproxy 0 0.0/s dummynet 0 0.0/s TIMEOUTS: tcp.first 120s tcp.opening 30s tcp.established 86400s tcp.closing 900s tcp.finwait 45s tcp.closed 90s tcp.tsdiff 60s udp.first 60s udp.single 30s udp.multiple 120s icmp.first 20s icmp.error 10s grev1.first 120s grev1.initiating 30s grev1.estblished 1800s esp.first 120s esp.estblished 900s other.first 60s other.single 30s other.multiple 120s frag 30s interval 10s adaptive.start 6000 states adaptive.end 12000 states src.track 0s LIMITS: states hard limit 10000 app-states hard limit 10000 src-nodes hard limit 10000 frags hard limit 5000 tables hard limit 1000 table-entries hard limit 200000 OS FINGERPRINTS: 696 fingerprints loaded This is the output from sudo pfctl -s all after starting Internet Sharing: No ALTQ support in kernel ALTQ related functions disabled TRANSLATION RULES: nat-anchor "com.apple/*" all nat-anchor "com.apple.internet-sharing" all rdr-anchor "com.apple/*" all rdr-anchor "com.apple.internet-sharing" all FILTER RULES: scrub-anchor "com.apple/*" all fragment reassemble scrub-anchor "com.apple.internet-sharing" all fragment reassemble anchor "com.apple/*" all anchor "com.apple.internet-sharing" all DUMMYNET RULES: dummynet-anchor "com.apple/*" all STATES: ALL tcp 10.0.1.32:50593 -> 74.125.225.113:443 SYN_SENT:CLOSED ALL udp 10.0.1.32:61534 -> 10.0.1.1:53 SINGLE:NO_TRAFFIC ALL udp 10.0.1.32:55433 -> 10.0.1.1:53 SINGLE:NO_TRAFFIC ALL udp 10.0.1.32:64041 -> 10.0.1.1:53 SINGLE:NO_TRAFFIC ALL tcp 10.0.1.32:50619 -> 74.125.225.131:443 SYN_SENT:CLOSED INFO: Status: Enabled for 0 days 00:00:01 Debug: Urgent State Table Total Rate current entries 5 searches 22886 22886.0/s inserts 1563 1563.0/s removals 1558 1558.0/s Counters match 2010 2010.0/s bad-offset 0 0.0/s fragment 0 0.0/s short 0 0.0/s normalize 0 0.0/s memory 0 0.0/s bad-timestamp 0 0.0/s congestion 0 0.0/s ip-option 12 12.0/s proto-cksum 0 0.0/s state-mismatch 1 1.0/s state-insert 0 0.0/s state-limit 0 0.0/s src-limit 0 0.0/s synproxy 0 0.0/s dummynet 0 0.0/s TIMEOUTS: tcp.first 120s tcp.opening 30s tcp.established 86400s tcp.closing 900s tcp.finwait 45s tcp.closed 90s tcp.tsdiff 60s udp.first 60s udp.single 30s udp.multiple 120s icmp.first 20s icmp.error 10s grev1.first 120s grev1.initiating 30s grev1.estblished 1800s esp.first 120s esp.estblished 900s other.first 60s other.single 30s other.multiple 120s frag 30s interval 10s adaptive.start 6000 states adaptive.end 12000 states src.track 0s LIMITS: states hard limit 10000 app-states hard limit 10000 src-nodes hard limit 10000 frags hard limit 5000 tables hard limit 1000 table-entries hard limit 200000 TABLES: OS FINGERPRINTS: 696 fingerprints loaded It looks like I need to change the pf settings that /usr/libexec/InternetSharing set up, but I have no idea how to do that.

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• F5/BigIP rule to redirect affinity-bound users from INACTIVE pool node to other ACTIVE node

  - by j pimmel

  We have several server nodes set up for the end users of our system and because we don't use any kind of session replication in the app servers, F5 maintains affinity for users with the ACTIVE node the client was first bound to. At times when we want to re-deploy the app, we change the F5 config and take a node out of the ACTIVE pool. Gradually the users filter off and we can deploy, but the process is a bit slow. We can't just dump all the users into a different node because - given the update heavy nature of the user activities - we could cause them to lose changes. That said, there is one URL/endpoint - call it http://site/product/list - which we know, when the client hits it, that we could shove them off the INACTIVE node they had affinity with and onto a different ACTIVE node. We have had a few tries writing an F5 rule along these lines, but haven't had much success so i thought I might ask here, assuming it's possible - I have no reason to think it's not based on what we have found so far.

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• In WPF 3D, why can't a perspective camera's LookDirection be straight down?

  - by DanM

  I'm attempting to position my perspective camera 30 units above the origin and pointing straight down. If I set the LookDirection of the camera to "0,0,-1", however, everything disappears. I have to make it "0.01,0.01,-1" for it to work. Why? <Window x:Class="ThreeDeeTester.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Window1" Height="300" Width="300"> <Grid> <Viewport3D> <Viewport3D.Camera> <PerspectiveCamera Position="0,0,30" LookDirection="0.01,0.01,-1" UpDirection="0,0,1" /> <!-- LookDirection="0,0,-1" doesn't work...why? --> </Viewport3D.Camera> <ModelVisual3D> <ModelVisual3D.Content> <Model3DGroup> <DirectionalLight Color="White" Direction="1,-1,-1" /> <GeometryModel3D> <GeometryModel3D.Geometry> <MeshGeometry3D Positions="0,0,10 -5,-5,0 -5,5,0 5,5,0 5,-5,0" TriangleIndices="2 1 0 2 0 3 4 3 0 1 4 0" /> </GeometryModel3D.Geometry> <GeometryModel3D.Material> <DiffuseMaterial Brush="Red" /> </GeometryModel3D.Material> </GeometryModel3D> </Model3DGroup> </ModelVisual3D.Content> </ModelVisual3D> </Viewport3D> </Grid> </Window>

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• What comment-spam filtering service works?

  - by Charles Stewart

  From an answer I gave to another question: There are comment filtering services out there that can analyse comments in a manner similar to mail spam filters (all links to the client API page, organised from simplest API to most complex): Steve Kemp (again) has an xml-rpc-based comment filter: it's how Debian filters comments, and the code is free software, meaning you can run your own comment filtering server if you like; There's Akismet, which is from the WordPress universe; There's Mollom, which has an impressive list of users. It's closed source; it might say "not sure" about comments, intended to suggest offering a captcha to check the user. For myself, I'm happy with offline by-hand filtering, but I suggested Kemp's service to someone who had an underwhelming experience with Mollom, and I'd like to pass on more reports from anyone who has tried these or other services.

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• How to add and remove nested model fields dynamically using Haml and Formtastic

  - by Brightbyte8

  We've all seen the brilliant complex forms railscast where Ryan Bates explains how to dynamically add or remove nested objects within the parent object form using Javascript. Has anyone got any ideas about how these methods need to be modified so as to work with Haml Formtastic? To add some context here's a simplified version of the problem I'm currently facing: # Teacher form (which has nested subject forms) [from my application] - semantic_form_for(@teacher) do |form| - form.inputs do = form.input :first_name = form.input :surname = form.input :city = render 'subject_fields', :form => form = link_to_add_fields "Add Subject", form, :subjects # Individual Subject form partial [from my application] - form.fields_for :subjects do |ff| #subject_field = ff.input :name = ff.input :exam = ff.input :level = ff.hidden_field :_destroy = link_to_remove_fields "Remove Subject", ff # Application Helper (straight from Railscasts) def link_to_remove_fields(name, f) f.hidden_field(:_destroy) + link_to_function(name, "remove_fields(this)") end def link_to_add_fields(name, f, association) new_object = f.object.class.reflect_on_association(association).klass.new fields = f.fields_for(association, new_object, :child_index => "new_#{association}") do |builder| render(association.to_s.singularize + "_fields", :f => builder) end link_to_function(name, h("add_fields(this, \"#{association}\", \"#{escape_javascript(fields)} \")")) end #Application.js (straight from Railscasts) function remove_fields(link) { $(link).previous("input[type=hidden]").value = "1"; $(link).up(".fields").hide(); } function add_fields(link, association, content) { var new_id = new Date().getTime(); var regexp = new RegExp("new_" + association, "g") $(link).up().insert({ before: content.replace(regexp, new_id) }); } The problem with implementation seems to be with the javascript methods - the DOM tree of a Formtastic form differs greatly from a regular rails form. I've seen this question asked online a few times but haven't come across an answer yet - now you know that help will be appreciated by more than just me! Jack

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