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• Configure static IPv6 on Ubuntu

  - by Charles Offenbacher

  I'm trying to configure IPv6 on a dedicated Ubuntu server. My provider gave me a "/64" (whatever that is - I'm still confused) of IPv6 addresses. However, when I try to use them, I can't ping anything. What do I do? :( # ping6 ipv6.google.com PING ipv6.google.com(vx-in-x63.1e100.net) 56 data bytes From fe80::219:d1ff:fefb:42d8 icmp_seq=1 Destination unreachable: Address unreachable From fe80::219:d1ff:fefb:42d8 icmp_seq=2 Destination unreachable: Address unreachable From fe80::219:d1ff:fefb:42d8 icmp_seq=3 Destination unreachable: Address unreachable --- ipv6.google.com ping statistics --- 3 packets transmitted, 0 received, +3 errors, 100% packet loss, time 2014ms # tracepath6 ipv6.google.com 1?: [LOCALHOST] 0.025ms pmtu 1500 1: fe80::219:d1ff:fefb:42d8%eth0 2000.022ms !H Resume: pmtu 1500 # cat /etc/network/interfaces # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto eth0 iface eth0 inet static address 64.***.***.*** netmask 255.255.255.248 gateway 64.***.***.*** iface eth0 inet6 static pre-up modprobe ipv6 address 2607:F878:1:***::1 netmask 64 gateway 2607:F878:1:***(same as address)::1 # ifconfig eth0 Link encap:Ethernet HWaddr 00:19:d1:fb:42:d8 inet addr:64.***.***.*** Bcast:64.***.***.*** Mask:255.255.255.248 inet6 addr: fe80::219:d1ff:fefb:42d8/64 Scope:Link inet6 addr: 2607:f878:1:***::1/64 Scope:Global UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:52451 errors:0 dropped:0 overruns:0 frame:0 TX packets:39729 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:6817761 (6.8 MB) TX bytes:6153835 (6.1 MB) Interrupt:41 Base address:0xc000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:166 errors:0 dropped:0 overruns:0 frame:0 TX packets:166 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:31714 (31.7 KB) TX bytes:31714 (31.7 KB)

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• What would cause Memcached to Hang for 2+ seconds?

  - by Brad Dwyer

  I'm going nuts trying to scale memcached. From their site: Memcached operations are almost all O(1). Connecting to it and issuing a get or stat command should never lag. If connecting lags, you may be hitting the max connections limit. See ServerMaint for details on stats to monitor. If issuing commands lags, you can have a number of tuning problems. Most common are hardware problems, not enough RAM (swapping), network problems (bandwidth, dropped packets, half-duplex connections). On rare occasion OS bugs or memcached bugs can contribute. Well.. it is most certainly not performing like an O(1) operation for me. Under low to normal load on our site memcached response times for get and set ops are about 0.001 seconds. Not bad. But if we triple the load we get outliers that take 100x (or in rare cases 1000x!) that long. I even had one instance where it took 2.2442 seconds for memcached to store a value. Obviously this is killing our site. Here's the output of Memcached-getStats during one of the slow periods: [pid] => 18079 [uptime] => 8903 [threads] => 4 [time] => 1332795759 [pointer_size] => 32 [rusage_user_seconds] => 26 [rusage_user_microseconds] => 503872 [rusage_system_seconds] => 125 [rusage_system_microseconds] => 477008 [curr_items] => 42099 [total_items] => 422500 [limit_maxbytes] => 943718400 [curr_connections] => 84 [total_connections] => 4946 [connection_structures] => 178 [bytes] => 7259957 [cmd_get] => 1679091 [cmd_set] => 351809 [get_hits] => 1662048 [get_misses] => 17043 [evictions] => 0 [bytes_read] => 109388476 [bytes_written] => 3187646458 [version] => 1.4.13 So things that I have ruled out so far are: Hitting the max connections limit (curr_connections of 84 is well below the default of max of 1024) Swapping - the machine has 900M out of 1024M of memory dedicated to memcached on a dedicated machine. It only appears to be using about 7MB of data as per the bytes stat. How would I diagnose the other hardware problems? prstat doesn't really show a whole lot going on in terms of CPU or memory usage. Not sure how to figure out the network problems but as this is a dedicated server on the same private network as the web box I don't think it's a connectivity issue (ping is less than a millisecond between the boxes). Is there something else I'm missing here? It's driving me nuts. Edit: Also forgot to mention that I've tried both persistent and non-persistent connections with minimal-to-no impact.

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• Wordpress Forbidden page

  - by ffffff

  HTML without a body part is null If I read preview mode in (there is no authority) without logging in The response html is this.. <html xmlns="http://www.w3.org/1999/xhtml" lang="ja" xml:lang="ja"> <head profile="http://purl.org/net/ns/metaprof"> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <meta http-equiv="Content-Script-Type" content="text/javascript" /> <meta name="generator" content="WordPress 2.9.2" /> <meta name="author" content="blog" /> <link rel="alternate" type="application/atom+xml" href="http://blog.example.com/feed/atom/" title="Atom cite contents" /> <link rel="start" href="http://blog.example.com" title="blog Home" /> <link rel="stylesheet" type="text/css" href="http://blog.example.com/wp-content/themes/blog/style.css" /> <meta name="description" content="blog" /> <title>blog - </title> </head> <body class="individual single"> </div> </body> </html> Do you have any solutions?

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• Certificate revocation check fails for non-domain guest in spite of accessible CRL

  - by 0xFE

  When we try to use certificates on computers that are not part of the domain, Windows complains that The revocation function was unable to check revocation because the revocation server was offline. However, if I manually open the certificate and check the CRL Distribution Point property, I see an ldap:/// URL and an http:// URL that points to externally-accessible IIS site that hosts the CRLs. Of course, the non-domain-joined client cannot access the ldap:/// URL, but it can download the CRL from the http:// link (at least in a browser). I enabled CAPI logging and I see the event that corresponds to this failed revocation check. The RevocationInfo section is: RevocationInfo [ freshnessTime] PT11H27M4S RevocationResult The revocation function was unable to check revocation because the revocation server was offline. [ value] 80092013 CertificateRevocationList [ location] UrlCache [ url] http://the correct URL [fileRef] 6E463C2583E17C63EF9EAC4EFBF2AEAFA04794EB.crl [issuerName] the name of the CA Furthermore, I can see the HTTP request to the correct URL and the server's response (HTTP 304 Not Modified) with Microsoft Network Monitor. I ran certutil -verify -urlfetch, and it seems to show the same thing: the computer recognizes both URLs, tries both, and even though the http:// link succeeds, returns the same error. Is there a way to have non-domain-joined clients skip the ldap:/// link and only check the http:// one? Edit: The ldap:/// URL is ldap:///CN=<name of CA>,CN=<name of server that is running the CA>,CN=CDP,CN=Public Key Services,CN=Services,CN=Configuration,DC=<domain name>?certificateRevocationList?base?objectClass=cRLDistributionPoint The non-domain-joined clients may be on the domain network or on an external network. The http:// CDP is accessible from the public internet.

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• Can't get IPv6 address using radvd on wireless interface on windows, wired works fine.

  - by AndrejaKo

  I set up my router to use OpenWRT and set it up to use IPv6 using a tunnel form SixXs. I'm having problems with stateless autoconfiguration using radvd. On my computer, wired connection can get its IPv6 address fine, but wireless can't. After spending some time on OpenWRT forums, I'm pretty much sure now that router is set up fine and that the problem is with my windows settings. Also, I do not have any problems getting IPv6 address on openSUSE 11.3. So what should I do to solve this and what information should I post? Here's radvdump output for wired interface: interface br-lan { AdvSendAdvert on; # Note: {Min,Max}RtrAdvInterval cannot be obtained with radvdump AdvManagedFlag on; AdvOtherConfigFlag on; AdvReachableTime 0; AdvRetransTimer 0; AdvCurHopLimit 64; AdvDefaultLifetime 1800; AdvHomeAgentFlag off; AdvDefaultPreference medium; AdvSourceLLAddress on; prefix 2001:15c0:67d0::/64 { AdvValidLifetime 86400; AdvPreferredLifetime 14400; AdvOnLink on; AdvAutonomous on; AdvRouterAddr off; }; # End of prefix definition }; # End of interface definition Here's radvdump output for wireless interface: # # radvd configuration generated by radvdump 1.6 # based on Router Advertisement from fe80::a0b7:deff:fef0:5b34 # received by interface br-lan # interface br-lan { AdvSendAdvert on; # Note: {Min,Max}RtrAdvInterval cannot be obtained with radvdump AdvManagedFlag on; AdvOtherConfigFlag on; AdvReachableTime 0; AdvRetransTimer 0; AdvCurHopLimit 64; AdvDefaultLifetime 1800; AdvHomeAgentFlag off; AdvDefaultPreference medium; AdvSourceLLAddress on; prefix 2001:15c0:67d0::/64 { AdvValidLifetime 86400; AdvPreferredLifetime 14400; AdvOnLink on; AdvAutonomous on; AdvRouterAddr off; }; # End of prefix definition }; # End of interface definition # # radvd configuration generated by radvdump 1.6 # based on Router Advertisement from fe80::a0b7:deff:fef0:5b34 # received by interface br-lan # interface br-lan { AdvSendAdvert on; # Note: {Min,Max}RtrAdvInterval cannot be obtained with radvdump AdvManagedFlag on; AdvOtherConfigFlag on; AdvReachableTime 0; AdvRetransTimer 0; AdvCurHopLimit 64; AdvDefaultLifetime 1800; AdvHomeAgentFlag off; AdvDefaultPreference medium; AdvSourceLLAddress on; prefix 2001:15c0:67d0::/64 { AdvValidLifetime 86400; AdvPreferredLifetime 14400; AdvOnLink on; AdvAutonomous on; AdvRouterAddr off; }; # End of prefix definition }; # End of interface definition

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• Amazon EC2: Instances, IPs and a wordpress blog (LAMP)

  - by JustinXXVII

  I had a link to my blog posted on Reddit yesterday and MySQL crashed on my EC2 Micro instance. I know I didn't have that many visitors because I used a marketing link that tracks hits. The link got 167 hits over the course of the last 18 hours, and MySQL crashed twice. So anyway, 167 visits is not a lot, so I've done some short term optimizations like restricting the number of Apache threads to limit the MySQL calls. I also set up WP Super Cache to serve static content. Soon I'm going to offload all of my images to S3 or CloudFront. So this leads me to my question. If this doesn't seem to help, and if i have another traffic "spike", how do AMIs work when you have a MySQL database? I think I understand that if you have more than one instance and assign the same Elastic IP to both of them, the incoming traffic gets distributed among both. But what happens when the MySQL database gets updated on one of the instances? I just need to wrap my mind around what happens when I create an AMI and then launch a new instance to help with traffic. Thanks for your suggestions.

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• Set source address to use tun device does not work (Debian Squeeze)

  - by A. Donda

  there have been similar questions on StackExchange but none of the answers helped me, so I'll try a question of my own. I have a VPN connection via OpenVPN. By default, all traffic is redirected through the tunnel using OpenVPN's "two more specific routes" trick, but I disabled that. My routing table is like this: 198.144.156.141 192.168.2.1 255.255.255.255 UGH 0 0 0 eth0 10.30.92.5 0.0.0.0 255.255.255.255 UH 0 0 0 tun1 10.30.92.1 10.30.92.5 255.255.255.255 UGH 0 0 0 tun1 192.168.2.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 0.0.0.0 10.30.92.5 0.0.0.0 UG 0 0 0 tun1 0.0.0.0 192.168.2.1 0.0.0.0 UG 0 0 0 eth0 And the interface configuration is like this: # ifconfig eth0 Link encap:Ethernet HWaddr XX-XX- inet addr:192.168.2.100 Bcast:192.168.2.255 Mask:255.255.255.0 inet6 addr: fe80::211:9ff:fe8d:acbd/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:394869 errors:0 dropped:0 overruns:0 frame:0 TX packets:293489 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:388519578 (370.5 MiB) TX bytes:148817487 (141.9 MiB) Interrupt:20 Base address:0x6f00 tun1 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:10.30.92.6 P-t-P:10.30.92.5 Mask:255.255.255.255 UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1 RX packets:64 errors:0 dropped:0 overruns:0 frame:0 TX packets:67 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:9885 (9.6 KiB) TX bytes:4380 (4.2 KiB) plus the lo device. The routing table has two default routes, one via eth0 through my local network router (DSL modem) at 192.168.2.1, and another via tun1 through the VPN's gateway. With this configuration, if I connect to a site, the route chosen is the direct one (because it has less hops?): # traceroute 8.8.8.8 -n traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 60 byte packets 1 192.168.2.1 0.427 ms 0.491 ms 0.610 ms 2 213.191.89.13 17.981 ms 20.137 ms 22.141 ms 3 62.109.108.48 23.681 ms 25.009 ms 26.401 ms ... This is fine, because my goal is to send only traffic from specific applications through the tunnel (esp. transmission, using its -i / bind-address-ipv4 option). To test whether this can work at all, I check it first with traceroute's -s option: # traceroute 8.8.8.8 -n -s 10.30.92.6 traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 60 byte packets 1 * * * 2 * * * 3 * * * ... This I take to mean that connection using the tunnel's local address as source is not possible. What is possible (though only as root) is to specify the source interface: # traceroute 8.8.8.8 -n -i tun1 traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 60 byte packets 1 10.30.92.1 129.337 ms 297.758 ms 297.725 ms 2 * * * 3 198.144.152.17 297.653 ms 297.652 ms 297.650 ms ... So apparently the tun1 interface is working and it is possible to send packets through it. But selecting the source interface is not implemented in my actual target application (transmission), so I would like to get source address selection to work. What am I doing wrong?

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• I need a driver for my Cardbus USB 2.0 card

  - by Carl

  The picture and details of the card are here: http://www.ht-link.com/en/ProductView.asp?ID=106 The Windows drivers for this don't work right. I tried them on my previous laptop, and then installed the ones off their included CD. (Note that the systems requirements includes a CD-ROM drive...) I have a new laptop, and lost the CD. The website that lists the drivers is broken - the download links don't work. It is here: http://www.ht-link.com/en/DownView.asp?ID=10 I need the very first link - The Win XP drivers for the HT-112NEC. The company does not reply to my e-mails. I've tried searching Google for other sources for the driver (I didn't bother with those sites that want me to install driver detection software or create a log-in for their site). [Here's the problem I am getting using the drivers Windows XP SP3 installs: When I plug in my USB 2.0 hard-disk adapter, a USB Mass Storage Device entry is added in the Device Manager, but there is no entry under Disk Drives, and a drive letter is not assigned, so I can't access the driver. Like I said, this card didn't work without their special drivers on my other laptop, either.]

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• Preventing endless forwarding with two routers

  - by jarmund

  The network in quesiton looks basically like this: /----Inet1 / H1---[111.0/24]---GW1---[99.0/24] \----GW2-----Inet2 Device explaination H1: Host with IP 192.168.111.47 GW1: Linux box with IPs 192.168.111.1 and 192.168.99.2, as well as its own route to the internet. GW2: Generic wireless router with IP 192.168.99.1 and its own route to the internet. Inet1 & Inet2: Two possible routes to the internet In short: H has more than one possible route to the internet. H is supposed to only access the internet via GW2 when that link is up, so GW1 has some policy based routing special just for H1: ip rule add from 192.168.111.47 table 991 ip route add default via 192.168.99.1 table 991 While this works as long as GW2 has a direct link to the internet, the problem occurs when that link is down. What then happens is that GW2 forwards the packet back to GW1, which again forwards back to GW2, creating an endless loop of TCP-pingpong. The preferred result would be that the packet was just dropped. Is there something that can be done with iptables on GW1 to prevent this? Basically, an iptables-friendly version of "If packet comes from GW2, but originated from H1, drop it" Note1: It is preferable not to change anything on GW2. Note2: H1 needs to be able to talk to both GW1 and GW2, and vice versa, but only GW2 should lead to the internet TLDR; H1 should only be allowed internet access via GW2, but still needs to be able to talk to both GW1 and GW2. EDIT: The interfaces for GW1 are br0.105 for the '99' network, and br0.111 for the '111' network. The sollution may or may not be obnoxiously simple, but i have not been able to produce the proper iptables syntax myself, so help would be most appreciated. PS: This is a follow-up question from this question

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• Ubuntu - wireless connection works great but wired is totally dead

  - by Dan

  I am running Ubuntu 10.04 on my Acer Aspire One netbook. The wireless connection works great, but the wired is totally dead. When I plug the Ethernet wire, the little led next to the port doesn't blink. If I do ifconfig, this is the output: lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:1659 errors:0 dropped:0 overruns:0 frame:0 TX packets:1659 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:132304 (132.3 KB) TX bytes:132304 (132.3 KB) wlan0 Link encap:Ethernet HWaddr 18:f4:6a:65:48:1f inet addr:192.168.1.7 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::1af4:6aff:fe65:481f/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:94823 errors:0 dropped:0 overruns:0 frame:0 TX packets:81390 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:93028474 (93.0 MB) TX bytes:18002558 (18.0 MB) There is no eth0. Is that normal? In the "Network Connections" GUI there is an entry "Wired connection 1", its "MAC address" field is blank. How can I make the wired connection work?

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• Using sed to Download ComboFix automatically

  - by user901398

  I'm trying to write a shell script to grab the dynamic URL which ComboFix is located at at BleepingComputer.com/download/combofix However, for some reason I can't seem to get my regex to match the download link of the "click here" if the download doesn't work. I used a regex tester and it said I matched the link, but I can't seem to get it to work when I execute it, it turns up an empty result. Here's my entire script: #!/bin/bash # Download latest ComboFix from BleepingComputer wget -O Listing.html "http://www.bleepingcomputer.com/download/combofix/" -nv downloadpage=$(sed -ne 's@^.*<a href="\(http://www[.]bleepingcomputer[.]com/download/combofix/dl/[0-9]\+/\)" class="goodurl">.*$@\1@p' Listing.html) echo "DL Page: $downloadpage" secondpage="$downloadpage" wget -O Download.html $secondpage -nv file=$(sed -ne 's@^.*<a href="\(http://download[.]bleepingcomputer[.]com/dl/[0-9A-Fa-f]\+/[0-9A-Fa-f]\+/windows/security/anti[-]virus/c/combofix/ComboFix[.]exe\)">.*$@\1@p' Download.html) echo "File: $file" wget -O "ComboFix.exe" "$file" -nv rm Listing.html rm Download.html mkdir Tools mv "ComboFix.exe" "Tools/ComboFix.exe" -f The first two downloads work successfully, and I end up with: http://www.bleepingcomputer.com/download/combofix/dl/12/ But it fails to match the final sed that will give me the download link. The code it's supposed to match is: <a href="http://download.bleepingcomputer.com/dl/6c497ccbaff8226ec84c97dcdfc3ce9a/5058d931/windows/security/anti-virus/c/combofix/ComboFix.exe">click here</a>

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• "Network is unreachable" When pinging google, can connect to internal computers on debian VM

  - by musher

  Similar to this SU question: "Network is unreachable" when attempting to ping google, but internal addresses work Actually, it's pretty much the same base issue. I went through that thread trying to find a solution, I changed my resolv.conf: before: domain [my work domain] search [my work domain] nameserver [my gateway] nameserver [my gateway2] I changed it to: after: domain [my work domain] search [my work domain] nameserver 8.8.8.8 nameserver 8.8.4.4 However, any time I reboot the computer the resolv.conf gets overwritten to the previous version (the 'before' above). The issues began after I installed virtualbox additions, X server and (specifically) LXDE: Cat of apt history.log: Start-Date: 2014-08-21 10:03:42 Commandline: apt-get install virtualbox-guest-utils virtualbox-guest-dkms Install: x11-xkb-utils:amd64 (7.7+1, automatic), libxaw7:amd64 (1.0.12-2, automatic), xfonts-utils:$ End-Date: 2014-08-21 10:03:56 Start-Date: 2014-08-21 10:18:39 Commandline: apt-get install lxde Install: desktop-base:amd64 (7.0.3, automatic), libgoa-1.0-0b:amd64 (3.12.4-1, automatic), lxmenu-d$ End-Date: 2014-08-21 10:21:52 Start-Date: 2014-08-21 10:26:40 Commandline: apt-get upgrade Upgrade: libio-socket-ssl-perl:am ifconfig on the guest: root@Peridot:~# ifconfig eth0 Link encap:Ethernet HWaddr 08:00:27:89:c9:20 og inet addr:172.31.2.102 Bcast:172.31.2.255 Mask:255.255.255.0 inet6 addr: fe80::a00:27ff:fe89:c920/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:2281 errors:0 dropped:1 overruns:0 frame:0 TX packets:463 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:266507 (260.2 KiB) TX bytes:120554 (117.7 KiB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:4 errors:0 dropped:0 overruns:0 frame:0 TX packets:4 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:240 (240.0 B) TX bytes:240 (240.0 B) The adapter in VBox is a bridged adapter directly onto my ethernet connection; as are my other 2 VMs (which work) Other SU questions I've tried: "connect: Network is unreachable" in VirtualBox VM

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• How to configure my 404 response

  - by Evylent

  How would I be able to correctly redirect a person who visits my site to my 404 page? I have already created my 404.php file as: <!DOCTYPE html> <html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Page not found | Twilight of Spirits</title> <link rel="stylesheet" href="http://forum.umbradora.net/template/default/css/404.css"> <link rel="icon" type="image/x-icon" href="/favicon.png"> </head> <body> <div id="error"> <a href="http://forum.umbradora.net/"> <img src="/forum/template/default/images/layout/404.png" alt="404 page not found" id="error404-image"> </a> </div> <div id="mixpanel" style="visibility: hidden; "></div></body></html> My .htaccess file is: ErrorDocument 404 http://forum.umbradora.net/404.php Now when I go to my site and enter a false link such as mack.php or total.html, I get this error: Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator, [email protected] and inform them of the time the error occurred, and anything you might have done that may have caused the error. More information about this error may be available in the server error log. Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request. Any ideas on how to solve this? I have tried switching from subdomain to my normal path, still get errors.

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• Excel hyperlinks can be attached to a range of cells -- what is the use case for this?

  - by John Machin

  In Excel 2003 and 2007 (and presumably 2010), it is possible to attach a hyperlink to a single cell; this is well known. Excel also allows you select a range for insertion. In that case, clicking on any cell in the range will jump to the target of the hyperlink. I can't find any web reference to this possibility. My question is: What is the use case for being able to do this? My only suggestion: The first worksheet is a menu for the remainder of the workbook. Each worksheet or topic has a hyperlink on the menu sheet. Each hyperlinks occupies a 3x3 range of cells to make it easier for users in a hurry to click on the correct link. A side question: Interestingly, Excel allows you to overlap ranges. Example: Link from A1:C3 to file1. Then link from B2:D4 to file2. The overlapped cells (B2:C3) now point to file2. Only A1, A2, A3, B1, and C1 now point to file1. No warning is given about the overlap. What is the rationale for this behaviour?

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• Proxypass issue in apache

  - by user116992

  I am reverse proxying one site to another site. It's working nicely, but on some links it displays the original link. Here is my configuration Original Site "mysite.com" Second site configuration which is proxypassed on "mysite.com" <VirtualHost *:80> ServerName test.mysite.com ServerAlias www.test.mysite.com test.mysite.com ErrorLog /var/log/apache2/test.mysite_log.log TransferLog /var/log/apache2/test.mysite-access_log.log LogLevel info LogFormat "%h %l %u %t \"%r\" %>s %b %T" common ProxyPass / http://mysite.com/ ProxyPass / http://mysite.com/ ProxyPassReverse / http://mysite.com/ </VirtualHost> Now, everything is working well, but the problem is that when I go to some specific link it redirects me to original link. For Example, there are two sections on my page: "about-us" and "inquiry". When I click on "about-us" it takes me to "http://test.mysite.com/about-us" which is ok When I click on "inquiry" it takes me to "http://mysite.com/inquiry" which is not correct it must be "http://test.mysite.com/inquiry". I think I've missed some thing to add in configuration file but I can't figure it out.

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• Apache, Permissions, and Convenience

  - by Mike

  I'm on Mac OSX and i I have apache2 installed via MacPorts, running as the _www user. I have some files I want to serve in the /Users/Me/Documents/abc folder. Right now, though, the permissions of /Users/Me/Documents are 700. So, _www can't get in, even if abc is chmod 777. I recognize the following options: Allow _www access to my Documents folder. Put the files I want to share outside of my Documents folder. Hard-link the files outside of my Documents folder, and point apache to the hard links. None of these solutions are acceptable to me, however. I don't feel safe allowing _www access to my entire Documents folder. I really want to keep the files in my Documents folder for other reasons. The files are changing all the time, so hard-linking would not always reflect the right file structure, and, as I understand it, you can't hard-link a directory (though, if you could, that would solve it). Any ideas for a solution? Is there a way to run a few httpd processes as my user account so it can get in there? Or, is there some way to hard-link a directory, or some way to get httpd to follow a symlink past a directory that is 700 not owned by _www? Thanks!

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• Does anyone know the touchpad disabling driver for Dell xps 14?

  - by rkar

  I accidentally deleted my Dell xps 14 touch pad disabling driver and I don't know where to find it and reinstall it. I have already tried Dell support and without luck (I don't want to install something that I don't know). Would anyone please send me the link to that driver To clarify: There is this Fn shortcut key used to disable/enable touch pad in Dell xps14 and when press it orange light on touch pad will lit and touch pad will stop working. But after deleting the driver that responsible for that function,it stopped working. My service center is almost 600 miles away and he said that he forgot to add it last time he fix my laptop. Since the internet connection at his place is slow,he can't send me from mail either.So can anyone send me the link for that driver. Since I don't really know about drivers it would be really nice if some one show me the driver name or link. Sorry,here is my laptop service tag "C37KWL1".I don't know how to find the specific driver for that function key.My dell has a short cut for disabling touchpad with picture on it along with the other multimedia short cut key with picture. since xps 15 and 17 have seperated touch key instead of on function keys mine have to choose function key or multimedia key through setting.To be honest my service center tech guy forgot to install it when he repair it and can't send me the file(which is about over 20mb or something according to him)for some reason.All i need is that particular file.

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• IIS 6.0 https not working "connection was reset"

  - by cad

  Application Server Windows Server 2003 SP2 with IIS 6.0 IIS has a "Default Web Site" (port 18000, ssl 443, ID=1) with a certificate created by me. I have an specific site called "scj.galaxy.Weekly" (port 80, ssl 443, ID=1272369728) that is working fine. I have an entry in windows/system32/drivers/etc/hosts that links galaxy.Weekly.scjdev.ds to the server ip in both my local machine and in the application Server. These sites works: http://scj.galaxy.weekly/test.html works http://scj.galaxy.weekly/test.aspx works But https://scj.galaxy.weekly/test.html fails Error message is: The connection was reset The connection to the server was reset while the page was loading. The certificate was working fine for months. It was created with something similar to this: Selfssl /N:CN=*.scjdev.ds /V:3650 /S:1 /P:443 I have tried several options and none of them are working: 1) Create a certificate only in "Default Web Site" and link it to SecureBindings with command prompt cscript adsutil.vbs set /w3svc/1272369728/SecureBindings ":443:galaxy.Weekly.scjdev.ds" 2) Create a certificate only in "Galaxy Site" and link it to SecureBindings 3) Create a certificate in both and link them to secureBindings. Probably I am missing an step or something, but I can't see it. Here is the relevant config of Galaxy Site: <IIsWebServer Location ="/LM/W3SVC/1272369729" AuthFlags="0" LogPluginClsid="{FF160663-DE82-11CF-BC0A-00AA006111E0}" SSLCertHash="c36a514a0be90fbc121d9c19bb052842289d5aee" SSLStoreName="MY" SecureBindings=":443:galaxy.Weekly.scjdev.ds" ServerAutoStart="TRUE" ServerBindings=":80:galaxy.Weekly.scjdev.ds" ServerComment="galaxy.Weekly.scjdev.ds" > </IIsWebServer> <IIsWebVirtualDir Location ="/LM/W3SVC/1272369729/root" AccessFlags="AccessRead | AccessScript" AppFriendlyName="Default Application" AppIsolated="2" AppRoot="/LM/W3SVC/1272369729/Root" AuthFlags="AuthAnonymous | AuthNTLM" DefaultDoc="Default.aspx" DirBrowseFlags="EnableDirBrowsing | DirBrowseShowDate | DirBrowseShowTime | DirBrowseShowSize | DirBrowseShowExtension | DirBrowseShowLongDate" Path="D:\Webs\Galaxysite" ScriptMaps="some config... " > </IIsWebVirtualDir>

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• Network external hard drive reports not enough free space

  - by mzhang

  I'm running an Ubuntu (10.04) Samba server on a local network. The server has a 50GB internal drive with only 24MB free. I've shared a folder /samba from that drive. I also have a 1TB NTFS external hard drive mounted to the system. There is a symbiotic link from the Samba shared folder on the nearly-full internal drive to the plenty-of-free-space external drive (i.e. /samba/external_hd). I wish to copy a 3.25GB folder into the (remote) external hard drive, via a Mac (10.6.8). The Mac reports (correctly) that there's 24MB free on the server, and so will not let me copy the folder on the Mac over to the external drive (dragging the folder into /samba/external_hd), failing with a "server does not have enough free space" error. However, it seems that I can still scp the folder into the external drive, via the symbolic link. Is there a reason as to why this is happening (and are there any ways to prevent it)? Is this even good practice (to mount a drive and link into the directory)?

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• SSO to multiple websites from Sharepoint website

  - by Aico

  We have an intranet based on Sharepoint 2010. In this intranet we have several links to other webservers within the same Active Directory, for example a link to our Outlook Web Access site on our Exchange 2010 environment. We have three different setups which visit this Sharepoint environment and the other webservers: Windows 7 clients that are a member of the Active Directory Home pc's that connect through a SSL VPN appliance Standalone thin clients (Windows 7 embedded) within the corporate network The goal is to let people only sign in once. In the first group this isn't a problem because the AD Integrated Authentication works fine and the Windows logon is passed on to Sharepoint and the other webservers. The second group is also working fine because of the LDAP integration that the SSL VPN appliance uses. The third group is however experiencing issues. They need to enter their credentials everytime they click a link to another webserver. They first need to enter credentials for accessing the Sharepoint environment. When clicking the link for their webmail they have to re-enter their credentials, and so on. Can someone tell me what the best solution would be to also get SSO working fine for the third group? Some extra information: We also have a Forefront TMG server in our environment. I read somewhere that Forefront might be part of a solution for this problem, but not sure how. Maybe someone here can help me? Look forward to some help. Best regards, Aico

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• How do I get Apache 2 to read this directory?

  - by Mike

  I'm on Mac OSX and i I have apache2 installed via MacPorts, running as the _www user. I have some files I want to serve in the /Users/Me/Documents/abc folder. Right now, though, the permissions of /Users/Me/Documents are 700. So, _www can't get in, even if abc is chmod 777. I recognize the following options: Allow _www access to my Documents folder. Put the files I want to share outside of my Documents folder. Hard-link the files outside of my Documents folder, and point apache to the hard links. None of these solutions are acceptable to me, however. I don't feel safe allowing _www access to my entire Documents folder. I really want to keep the files in my Documents folder for other reasons. The files are changing all the time, so hard-linking would not always reflect the right file structure, and, as I understand it, you can't hard-link a directory (though, if you could, that would solve it). Any ideas for a solution? Is there a way to run a few httpd processes as my user account so it can get in there? Or, is there some way to hard-link a directory, or some way to get httpd to follow a symlink past a directory that is 700 not owned by _www? Thanks!

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• How to Unit Test HtmlHelper with Moq?

  - by DaveDev

  Could somebody show me how you would go about creating a mock HTML Helper with Moq? This article has a link to an article claiming to describe this, but following the link only returns an ASP.NET Runtime Error [edit] I asked a more specific question related to the same subject here, but it hasn't gotten any responses. I figured it was too specific, so I thought I could get a more general answer to a more general question and modify it to meet my requirements. Thanks

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• Colorbox (Lightbox clone) and moving the Close button

  - by Neurofluxation

  I have integrated my Colorbox, the set up is as follows: MAIN PAGE:   IFRAME     COLORBOX LINK But I have it so, you click the COLORBOX LINK and it opens the Colorbox in the parent page (MAIN PAGE). Now, the problem I have is that the Close button is stuck inside this pageframe. Is there anyway I can have a Close Button outside of the Colorbox and to have the Colorbox Close Button open seperately? sigh, deary me...

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• Arc text in iphone application

  - by Amit Battan

  Hi all I want to bend the text that of UILabel from corner. It just like appear as arc or as following link. http://picasaweb.google.com/lh/photo/kfBzK4R4IlvyHfVywUNd1A?feat=directlink please suggest me, from where i start. any documentation,link, sample code. thanks amit battan

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• jquery treeview global saving position

  - by kusanagi

  i use such treeview http://docs.jquery.com/Plugins/Treeview/treeview, it saves perfect opened nodes when i click to subnodes links, but if i click on link, that is not in treeview the treeview is closes. for example- in treeview i have product categories, when click on category it loads list of products, but if i click on product details (this link not in treeview) then treeview is close. any ideas?

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