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  • Globe SSL with NGINX SSL certificate problem, please help

    - by PartySoft
    Hello, I have a big problem with installing a certificat for nginx (same happends with apache though) I have 3 files __domain_com.crt __domain_com.ca-bundle and ssl.key. I tried to append cat __domain_com.crt __leechpack_com.ca-bundle bundle.crt but if I do it like this i get an error: [emerg]: SSL_CTX_use_certificate_chain_file("/etc/nginx/__leechpack_com.crt") failed (SSL: error:0906D066:PEM routines:PEM_read_bio:bad end line error:140DC009:SSL routines:SSL_CTX_use_certificate_chain_file:PEM lib) And that's because the delimiters of the certificates arren't separated. ZqTjb+WBJQ== -----END CERTIFICATE----------BEGIN CERTIFICATE----- MIIE6DCCA9CgAwIBAgIQdIYhlpUQySkmKUvMi/gpLDANBgkqhkiG9w0BAQUFADBv If i separate them with an enter between certificated it will at least start but i will get the same warning from Firefox: This Connection is Untrusted You have asked Firefox to connect securely to domain.com, but we can't confirm that your connection is secure. The concatenate solution it is given by Globe SSL and the NGINX site but it doesn't work. I think the bundle is ignored though. http://customer.globessl.com/knowledgebase/55/Certificate-Installation--Nginx.html http://nginx.org/en/docs/http/configuring_https_servers.html#chains%20http://wiki.nginx.org/NginxHttpSslModule if i do openssl s_client -connect down.leechpack.com:443 CONNECTED(00000003) depth=0 /OU=Domain Control Validated/OU=Provided by Globe Hosting, Inc./OU=Globe Standard Wildcard SSL/CN=*.domain.com verify error:num=20:unable to get local issuer certificate verify return:1 depth=0 /OU=Domain Control Validated/OU=Provided by Globe Hosting, Inc./OU=Globe Standard Wildcard SSL/CN=*.domain.com verify error:num=27:certificate not trusted verify return:1 depth=0 /OU=Domain Control Validated/OU=Provided by Globe Hosting, Inc./OU=Globe Standard Wildcard SSL/CN=*.domain.com verify error:num=21:unable to verify the first certificate verify return:1 --- Certificate chain 0 s:/OU=Domain Control Validated/OU=Provided by Globe Hosting, Inc./OU=Globe Standard Wildcard SSL/CN=*.domain.com i:/C=RO/O=GLOBE HOSTING CERTIFICATION AUTHORITY/CN=GLOBE SSL Domain Validated CA 1 s:/C=US/O=Globe Hosting, Inc./OU=GlobeSSL DV Certification Authority/CN=GlobeSSL CA i:/C=SE/O=AddTrust AB/OU=AddTrust External TTP Network/CN=AddTrust External CA Root --- Server certificate -----BEGIN CERTIFICATE----- MIIFQzCCBCugAwIBAgIQRnpCmtwX7z7GTla0QktE6DANBgkqhkiG9w0BAQUFADBl MQswCQYDVQQGEwJSTzEuMCwGA1UEChMlR0xPQkUgSE9TVElORyBDRVJUSUZJQ0FU SU9OIEFVVEhPUklUWTEmMCQGA1UEAxMdR0xPQkUgU1NMIERvbWFpbiBWYWxpZGF0 ZWQgQ0EwHhcNMTAwMjExMDAwMDAwWhcNMTEwMjExMjM1OTU5WjCBjTEhMB8GA1UE CxMYRG9tYWluIENvbnRyb2wgVmFsaWRhdGVkMSgwJgYDVQQLEx9Qcm92aWRlZCBi eSBHbG9iZSBIb3N0aW5nLCBJbmMuMSQwIgYDVQQLExtHbG9iZSBTdGFuZGFyZCBX aWxkY2FyZCBTU0wxGDAWBgNVBAMUDyoubGVlY2hwYWNrLmNvbTCCASIwDQYJKoZI hvcNAQEBBQADggEPADCCAQoCggEBAKX7jECMlYEtcvqVWQVUpXNxO/VaHELghqy/ Ml8dOfOXG29ZMZsKUMqS0jXEwd+Bdpm31lBxOALkj8o79hX0tspLMjgtCnreaker 49y62BcjfguXRFAaiseXTNbMer5lDWiHlf1E7uCoTTiczGqBNfl6qSJlpe4rYBtq XxBAiygaNba6Owghuh19+Uj8EICb2pxbJNFfNzU1D9InFdZSVqKHYBem4Cdrtxua W4+YONsfLnnfkRQ6LOLeYExHziTQhSavSv9XaCl9Zqzm5/eWbQqLGRpSJoEPY/0T GqnmeMIq5M35SWZgOVV10j3pOCS8o0zpp7hMJd2R/HwVaPCLjukCAwEAAaOCAcQw ggHAMB8GA1UdIwQYMBaAFB9UlnKtPUDnlln3STFTCWb5DWtyMB0GA1UdDgQWBBT0 8rPIMr7JDa2Xs5he5VXAvMWArjAOBgNVHQ8BAf8EBAMCBaAwDAYDVR0TAQH/BAIw ADAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwVQYDVR0gBE4wTDBKBgsr BgEEAbIxAQICGzA7MDkGCCsGAQUFBwIBFi1odHRwOi8vd3d3Lmdsb2Jlc3NsLmNv bS9kb2NzL0dsb2JlU1NMX0NQUy5wZGYwRgYDVR0fBD8wPTA7oDmgN4Y1aHR0cDov L2NybC5nbG9iZXNzbC5jb20vR0xPQkVTU0xEb21haW5WYWxpZGF0ZWRDQS5jcmww dwYIKwYBBQUHAQEEazBpMEEGCCsGAQUFBzAChjVodHRwOi8vY3J0Lmdsb2Jlc3Ns LmNvbS9HTE9CRVNTTERvbWFpblZhbGlkYXRlZENBLmNydDAkBggrBgEFBQcwAYYY aHR0cDovL29jc3AuZ2xvYmVzc2wuY29tMCkGA1UdEQQiMCCCDyoubGVlY2hwYWNr LmNvbYINbGVlY2hwYWNrLmNvbTANBgkqhkiG9w0BAQUFAAOCAQEAB2Y7vQsq065K s+/n6nJ8ZjOKbRSPEiSuFO+P7ovlfq9OLaWRHUtJX0sLntnWY1T9hVPvS5xz/Ffl w9B8g/EVvvfMyOw/5vIyvHq722fAAC1lWU1rV3ww0ng5bgvD20AgOlIaYBvRq8EI 5Dxo2og2T1UjDN44GOSWsw5jetvVQ+SPeNPQLWZJS9pNCzFQ/3QDWNPOvHqEeRcz WkOTCqbOSZYvoSPvZ3APh+1W6nqiyoku/FCv9otSCtXPKtyVa23hBQ+iuxqIM4/R gncnUKASi6KQrWMQiAI5UDCtq1c09uzjw+JaEzAznxEgqftTOmXAJSQGqZGd6HpD ZqTjb+WBJQ== -----END CERTIFICATE----- subject=/OU=Domain Control Validated/OU=Provided by Globe Hosting, Inc./OU=Globe Standard Wildcard SSL/CN=*.domain.com issuer=/C=RO/O=GLOBE HOSTING CERTIFICATION AUTHORITY/CN=GLOBE SSL Domain Validated CA --- No client certificate CA names sent --- SSL handshake has read 3313 bytes and written 343 bytes --- New, TLSv1/SSLv3, Cipher is DHE-RSA-AES256-SHA Server public key is 2048 bit Secure Renegotiation IS supported Compression: NONE Expansion: NONE SSL-Session: Protocol : TLSv1 Cipher : DHE-RSA-AES256-SHA Session-ID: 5F9C8DC277A372E28A4684BAE5B311533AD30E251369D144A13DECA3078E067F Session-ID-ctx: Master-Key: 9B531A75347E6E7D19D95365C1208F2ED37E4004AA8F71FC614A18937BEE2ED9F82D58925E0B3931492AD3D2AA6EFD3B Key-Arg : None Start Time: 1288618211 Timeout : 300 (sec) Verify return code: 21 (unable to verify the first certificate) ---

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  • Is there a way to check if a user has specific rights?

    - by Vadim
    In my application I'm using ntrights.exe, that is part of Windows Resource Kit, to grant and revoke a specific user right. For example to grant a user "Log on as a server" right, I execute using shell object following command: ntrights -u User +r SeServiceLogonRight However ntrights doesn't allow you to check if a user has a specific right. Can you tell me how I can check if a user has a specific right?

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  • How can I pass referrer header from my https domain to http domains?

    - by nutcracker
    My website is 100% https. I have links to other http domains. The referrer header is not set when linking from a https page to a http page. From http://en.wikipedia.org/wiki/HTTP_referrer If a website is accessed from a HTTP Secure (HTTPS) connection and a link points to anywhere except another secure location, then the referer field is not sent. I would prefer that other domains can see the referrer so that they know that traffic comes from my domain. Is there a way to force this header or is there another solution? Update I've done some basic testing using a redirect: http page -- link to http --> 301 redirect --> http page = referrer intact https page -- link to https --> 301 redirect --> http page = referrer blank https page -- link to http --> 301 redirect --> http page = referrer blank https page -- link to http --> 302 redirect --> http page = referrer blank The referrer is lost when linking from a https page to a http redirect page on my own domain. So there is no referrer on the redirect.

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  • Do ORMs enable the creation of rich domain models?

    - by Augusto
    After using Hibernate on most of my projects for about 8 years, I've landed on a company that discourages its use and wants applications to only interact with the DB through stored procedures. After doing this for a couple of weeks, I haven't been able to create a rich domain model of the application I'm starting to build, and the application just looks like a (horrible) transactional script. Some of the issues I've found are: Cannot navigate object graph as the stored procedures just load the minimum amount of data, which means that sometimes we have similar objects with different fields. One example is: we have a stored procedure to retrieve all the data from a customer, and another to retrieve account information plus a few fields from the customer. Lots of the logic ends up in helper classes, so the code becomes more structured (with entities used as old C structs). More boring scaffolding code, as there's no framework that extracts result sets from a stored procedure and puts it in an entity. My questions are: has anyone been in a similar situation and didn't agree with the store procedure approch? what did you do? Is there an actual benefit of using stored procedures? appart from the silly point of "no one can issue a drop table". Is there a way to create a rich domain using stored procedures? I know that there's the posibility of using AOP to inject DAOs/Repositories into entities to be able to navigate the object graph. I don't like this option as it's very close to voodoo.

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  • How to forward a [sub]domain to another address? (not just HTTP!)

    - by M. Joanis
    Hello everyone! I have bought domain1.me from GoDaddy... (yeah, I know... but ME domain registrars seemed quite hard to find...) I'm mainly hosted at 1and1. I have registered subdomain sub1.domain1.me and redirected it to my 1and1 account. That should eventually work fine. Then I have registered sub2.domain1.me and tried to redirect it to a box at home. It works #1 when for HTTP. I can access SSH server without any problem when I use the IP directly, but not when using sub2.domain1.me:22. The way I see this, they (GoDaddy) are redirecting only on port 80 (why would they?). I have looked at 1and1 forwarding too and they ask for an URI starting with http so I guess that's the same behavior. What are you guys doing to be able to host stuff from home (HTTP, SSH, SVN, Git, etc. etc.) using a domain name to prevent everyone to have to remember your IP??? Heeeelp! Thanks!

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  • What should I use for a package name if I don't have a domain? [closed]

    - by C. Ross
    Possible Duplicate: What is the point of Java’s package naming convention? What package name to choose for a small, open-source Java project? I write Java (and derivative languages with package names) for personal use, but I don't have a personal domain name, so the standard packaging naming convention doesn't hold. Since the same convention is used in Maven group-id's, the problem is the same there. What should I use for the root of my package name?

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  • outgoing DNS flood targeted to non-ISP hosts

    - by radudani
    Below is the specific traffic monitored at the network perimeter and originating from a user PC on Vista platform; my question is not about the effects of the flood, but about the nature of the source of it; is this a kind of known infection, or just an application went out of control? a standard NOD32 scan didn't find anything, as the user told me; Thank you for any hint, Danny 14:40:10.115876 IP 192.168.7.42.4122 67.228.0.181.53: S 2742536765:2742536765(0) win 16384 14:40:10.115943 IP 192.168.7.42.4124 67.228.181.207.53: S 3071079888:3071079888(0) win 16384 14:40:10.116015 IP 192.168.7.42.4126 67.228.0.181.53: S 3445199428:3445199428(0) win 16384 14:40:10.116086 IP 192.168.7.42.4128 67.228.181.207.53: S 2053198691:2053198691(0) win 16384 14:40:10.116154 IP 192.168.7.42.4130 67.228.0.181.53: S 2841660872:2841660872(0) win 16384 14:40:10.116222 IP 192.168.7.42.4132 67.228.181.207.53: S 3150822465:3150822465(0) win 16384 14:40:10.116290 IP 192.168.7.42.4134 67.228.0.181.53: S 1692515021:1692515021(0) win 16384 14:40:10.116358 IP 192.168.7.42.4136 67.228.181.207.53: S 3358275919:3358275919(0) win 16384 14:40:10.116430 IP 192.168.7.42.4138 67.228.0.181.53: S 930184999:930184999(0) win 16384 14:40:10.116498 IP 192.168.7.42.4140 67.228.181.207.53: S 1504984630:1504984630(0) win 16384 14:40:10.116566 IP 192.168.7.42.4142 67.228.0.181.53: S 546074424:546074424(0) win 16384 14:40:10.116634 IP 192.168.7.42.4144 67.228.181.207.53: S 4241828590:4241828590(0) win 16384 14:40:10.116702 IP 192.168.7.42.4146 67.228.0.181.53: S 668634627:668634627(0) win 16384 14:40:10.116769 IP 192.168.7.42.4148 67.228.181.207.53: S 3768119461:3768119461(0) win 16384 14:40:10.117360 IP 192.168.7.42.4111 67.228.0.181.53: 12676 op8 Resp12*- [2128q][|domain] 14:40:10.117932 IP 192.168.7.42.4112 67.228.181.207.53: 44190 op7 NotAuth*|$ [29103q],[|domain] 14:40:10.118726 IP 192.168.7.42.4113 67.228.0.181.53: 49196 inv_q [b2&3=0xeea] [64081q] [28317a] [43054n] [23433au] Type63482 (Class 5889)? M-_^OSM-JM-m^_M-i.[|domain] 14:40:10.119934 IP 192.168.7.42.4114 67.228.181.207.53: 48131 updateMA Resp12$ [43850q],[|domain] 14:40:10.121164 IP 192.168.7.42.4115 67.228.0.181.53: 46330 updateM% [b2&3=0x665b] [23691a] [998q] [32406n] [11452au][|domain] 14:40:10.121866 IP 192.168.7.42.4116 67.228.181.207.53: 34425 op7 YXRRSet* [39927q][|domain] 14:40:10.123107 IP 192.168.7.42.4117 67.228.0.181.53: 56536 notify+ [b2&3=0x27e6] [59761a] [23005q] [33341n] [29705au][|domain] 14:40:10.123961 IP 192.168.7.42.4118 67.228.181.207.53: 19323 stat% [b2&3=0x14bb] [32491a] [41925q] [2038n] [5857au][|domain] 14:40:10.132499 IP 192.168.7.42.4119 67.228.0.181.53: 50432 updateMA+ [b2&3=0x6bc2] [10733a] [9775q] [46984n] [15261au][|domain] 14:40:10.133394 IP 192.168.7.42.4120 67.228.181.207.53: 2171 notify Refused$ [26027q][|domain] 14:40:10.134421 IP 192.168.7.42.4121 67.228.0.181.53: 25802 updateM NXDomain*-$ [28641q][|domain] 14:40:10.135392 IP 192.168.7.42.4122 67.228.181.207.53: 2073 updateMA+ [b2&3=0x6d0b] [43177a] [54332q] [17736n] [43636au][|domain] 14:40:10.136638 IP 192.168.7.42.4123 67.228.0.181.53: 15346 updateD+% [b2&3=0x577a] [61686a] [19106q] [15824n] [37833au] Type28590 (Class 64856)? [|domain] 14:40:10.137265 IP 192.168.7.42.4124 67.228.181.207.53: 60761 update+ [b2&3=0x2b66] [43293a] [53922q] [23115n] [11349au][|domain] 14:40:10.148122 IP 192.168.7.42.4125 67.228.0.181.53: 3418 op3% [b2&3=0x1a92] [51107a] [60368q] [47777n] [56081au][|domain]

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  • DNS Server Behind NAT

    - by Bryan
    I've got a Bind 9 DNS server sitting behind a NAT firewall, assume the Internet facing IP is 1.2.3.4 There are no restrictions on outgoing traffic, and port 53 (TCP/UDP) is forwarded from 1.2.3.4 to the internal DNS server (10.0.0.1). There are no IP Tables rules on either the VPS or the internal Bind 9 server. From a remote Linux VPS located elsewhere on the internet, nslookup works fine # nslookup foo.example.com 1.2.3.4 Server: 1.2.3.4 Address: 1.2.3.4#53 Name: foo.example.com Addresss: 9.9.9.9 However, when using the host command on the remote VPS, I receive the following output: # host foo.example.com 1.2.3.4 ;; reply from unexpected source: 1.2.3.4#13731, expected 1.2.3.4#53 ;; reply from unexpected source: 1.2.3.4#13731, expected 1.2.3.4#53 ;; connection timed out; no servers could be reached. From the VPS, I can establish a connection (using telnet) to 1.2.3.4:53 From the internal DNS server (10.0.0.1), the host command appears to be fine: # host foo.example.com 127.0.0.1 Using domain server: Name: 127.0.0.1 Address: 127.0.0.1#53 Aliases: foo.example.com has address 9.9.9.9 Any suggestions as to why the host command on my VPS is complaining about the reply coming back from another port, and what can I do to fix this? Further info: From a windows host external to the network >nslookup foo.example.com 1.2.3.4 DNS request timeout timeout was 2 seconds Server: UnKnown Address: 1.2.3.4 DNS request timed out. timeout was 2 seconds DNS request timed out. timeout was 2 seconds DNS request timed out. timeout was 2 seconds DNS request timed out. timeout was 2 seconds *** Request to UnKnown timed-out This is a default install of bind from Ubuntu 12.04 LTS, with around 11 zones configured. $ named -v BIND 9.8.1-P1 TCP Dump (filtered) from internal DNS server 20:36:29.175701 IP pc.external.com.57226 > dns.example.com.domain: 1+ PTR? 4.3.2.1.in-addr.arpa. (45) 20:36:29.175948 IP dns.example.com.domain > pc.external.com.57226: 1 Refused- 0/0/0 (45) 20:36:31.179786 IP pc.external.com.57227 > dns.example.com.domain: 2+[|domain] 20:36:31.179960 IP dns.example.com.domain > pc.external.com.57227: 2 Refused-[|domain] 20:36:33.180653 IP pc.external.com.57228 > dns.example.com.domain: 3+[|domain] 20:36:33.180906 IP dns.example.com.domain > pc.external.com.57228: 3 Refused-[|domain] 20:36:35.185182 IP pc.external.com.57229 > dns.example.com.domain: 4+ A? foo.example.com. (45) 20:36:35.185362 IP dns.example.com.domain > pc.external.com.57229: 4*- 1/1/1 (95) 20:36:37.182844 IP pc.external.com.57230 > dns.example.com.domain: 5+ AAAA? foo.example.com. (45) 20:36:37.182991 IP dns.example.com.domain > pc.external.com.57230: 5*- 0/1/0 (119) TCP Dump from client during query 21:24:52.054374 IP pc.external.com.43845 > dns.example.com.53: 6142+ A? foo.example.com. (45) 21:24:52.104694 IP dns.example.com.29242 > pc.external.com.43845: UDP, length 95

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  • Best Practices - Core allocation

    - by jsavit
    This post is one of a series of "best practices" notes for Oracle VM Server for SPARC (also called Logical Domains) Introduction SPARC T-series servers currently have up to 4 CPU sockets, each of which has up to 8 or (on SPARC T3) 16 CPU cores, while each CPU core has 8 threads, for a maximum of 512 dispatchable CPUs. The defining feature of Oracle VM Server for SPARC is that each domain is assigned CPU threads or cores for its exclusive use. This avoids the overhead of software-based time-slicing and emulation (or binary rewriting) of system state-changing privileged instructions used in traditional hypervisors. To create a domain, administrators specify either the number of CPU threads or cores that the domain will own, as well as its memory and I/O resources. When CPU resources are assigned at the individual thread level, the logical domains constraint manager attempts to assign threads from the same cores to a domain, and avoid "split core" situations where the same CPU core is used by multiple domains. Sometimes this is unavoidable, especially when domains are allocated and deallocated CPUs in small increments. Why split cores can matter Split core allocations can silenty reduce performance because multiple domains with different address spaces and memory contents are sharing the core's Level 1 cache (L1$). This is called false cache sharing since even identical memory addresses from different domains must point to different locations in RAM. The effect of this is increased contention for the cache, and higher memory latency for each domain using that core. The degree of performance impact can be widely variable. For applications with very small memory working sets, and with I/O bound or low-CPU utilization workloads, it may not matter at all: all machines wait for work at the same speed. If the domains have substantial workloads, or are critical to performance then this can have an important impact: This blog entry was inspired by a customer issue in which one CPU core was split among 3 domains, one of which was the control and service domain. The reported problem was increased I/O latency in guest domains, but the root cause might be higher latency servicing the I/O requests due to the control domain being slowed down. What to do about it Split core situations are easily avoided. In most cases the logical domain constraint manager will avoid it without any administrative action, but it can be entirely prevented by doing one of the several actions: Assign virtual CPUs in multiples of 8 - the number of threads per core. For example: ldm set-vcpu 8 mydomain or ldm add-vcpu 24 mydomain. Each domain will then be allocated on a core boundary. Use the whole core constraint when assigning CPU resources. This allocates CPUs in increments of entire cores instead of virtual CPU threads. The equivalent of the above commands would be ldm set-core 1 mydomain or ldm add-core 3 mydomain. Older syntax does the same thing by adding the -c flag to the add-vcpu, rm-vcpu and set-vcpu commands, but the new syntax is recommended. When whole core allocation is used an attempt to add cores to a domain fails if there aren't enough completely empty cores to satisfy the request. See https://blogs.oracle.com/sharakan/entry/oracle_vm_server_for_sparc4 for an excellent article on this topic by Eric Sharakan. Don't obsess: - if the workloads have minimal CPU requirements and don't need anywhere near a full CPU core, then don't worry about it. If you have low utilization workloads being consolidated from older machines onto a current T-series, then there's no need to worry about this or to assign an entire core to domains that will never use that much capacity. In any case, make sure the most important domains have their own CPU cores, in particular the control domain and any I/O or service domain, and of course any important guests. Summary Split core CPU allocation to domains can potentially have an impact on performance, but the logical domains manager tends to prevent this situation, and it can be completely and simply avoided by allocating virtual CPUs on core boundaries.

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  • How to generate Function caller graphs for other languages?

    - by Jeremy Rudd
    I like the way Doxygen combines with Graphviz dot to generate function caller graphs. I'd like this functionality for other languages as well, apart from the basics that Doxygen supports (C++, C, Java, Objective-C, Python, VHDL, PHP, C#). I'm currently interested in JavaScript, ActionScript 2 and ActionScript 3/Flex but am looking for ways or tools that have a wider language support than Doxygen. Is there any way to get function caller graphs for any other languages?

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  • What is a good platform for building a game framework targetting both web and native languages?

    - by fuzzyTew
    I would like to develop (or find, if one is already in development) a framework with support for accelerated graphics and sound built on a system flexible enough to compile to the following: native ppc/x86/x86_64/arm binaries or a language which compiles to them javascript actionscript bytecode or a language which compiles to it (actionscript 3, haxe) optionally java I imagine, for example, creating an API where I can open windows and make OpenGL-like calls and the framework maps this in a relatively efficient manner to either WebGL with a canvas object, 3d graphics in Flash, OpenGL ES 2 with EGL, or desktop OpenGL in an X11, Windows, or Cocoa window. I have so far looked into these avenues: Building the game library in haXe Pros: Targets exist for php, javascript, actionscript bytecode, c++ High level, object oriented language Cons: No support for finally{} blocks or destructors, making resource cleanup difficult C++ target does not allow room for producing highly optimized libraries -- the foreign function interface requires all primitive types be boxed in a wrapper object, as if writing bindings for a scripting language; these feel unideal for real-time graphics and audio, especially exporting low-level functions. Doesn't seem quite yet mature Using the C preprocessor to create a translator, writing programs entirely with macros Pros: CPP is widespread and simple to use Cons: This is an arduous task and probably the wrong tool for the job CPP implementations differ widely in support for features (e.g. xcode cpp has no variadic macros despite claiming C99 compliance) There is little-to-no room for optimization in this route Using llvm's support for multiple backends to target c/c++ to web languages Pros: Can code in c/c++ LLVM is a very mature highly optimizing compiler performing e.g. global inlining Targets exist for actionscript (alchemy) and javascript (emscripten) Cons: Actionscript target is closed source, unmaintained, and buggy. Javascript targets do not use features of HTML5 for appropriate optimization (e.g. linear memory with typed arrays) and are immature An LLVM target must convert from low-level bytecode, so high-level constructs are lost and bloated unreadable code is created from translating individual instructions, which may be more difficult for an unprepared JIT to optimize. "jump" instructions cause problems for languages with no "goto" statements. Using libclang to write a translator from C/C++ to web languages Pros: A beautiful parsing library providing easy access to the code structure Can code in C/C++ Has sponsored developer effort from Apple Cons: Incomplete; current feature set targets IDEs. Basic operators are unexposed and must be manually parsed from the returned AST element to be identified. Translating code prior to compilation may forgo optimizations assumed in c/c++ such as inlining. Creating new code generators for clang to translate into web languages Pros: Can code in C/C++ as libclang Cons: There is no API; code structure is unstable A much larger job than using libclang; the innards of clang are complex Building the game library in Common Lisp Pros: Flexible, ancient, well-developed language Extensive introspection should ease writing translators Translators exist for at least javascript Cons: Unfamiliar language No standardized library functions, widely varying implementations Which of these avenues should I pursue? Do you know of any others, or any systems that might be useful? Does a general project like this exist somewhere already? Thank you for any input.

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  • How do I get my dependenices inject using @Configurable in conjunction with readResolve()

    - by bmatthews68
    The framework I am developing for my application relies very heavily on dynamically generated domain objects. I recently started using Spring WebFlow and now need to be able to serialize my domain objects that will be kept in flow scope. I have done a bit of research and figured out that I can use writeReplace() and readResolve(). The only catch is that I need to look-up a factory in the Spring context. I tried to use @Configurable(preConstruction = true) in conjunction with the BeanFactoryAware marker interface. But beanFactory is always null when I try to use it in my createEntity() method. Neither the default constructor nor the setBeanFactory() injector are called. Has anybody tried this or something similar? I have included relevant class below. Thanks in advance, Brian /* * Copyright 2008 Brian Thomas Matthews Limited. * All rights reserved, worldwide. * * This software and all information contained herein is the property of * Brian Thomas Matthews Limited. Any dissemination, disclosure, use, or * reproduction of this material for any reason inconsistent with the * express purpose for which it has been disclosed is strictly forbidden. */ package com.btmatthews.dmf.domain.impl.cglib; import java.io.InvalidObjectException; import java.io.ObjectStreamException; import java.io.Serializable; import java.lang.reflect.InvocationTargetException; import java.util.HashMap; import java.util.Map; import org.apache.commons.beanutils.PropertyUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.BeanFactory; import org.springframework.beans.factory.BeanFactoryAware; import org.springframework.beans.factory.annotation.Configurable; import org.springframework.util.StringUtils; import com.btmatthews.dmf.domain.IEntity; import com.btmatthews.dmf.domain.IEntityFactory; import com.btmatthews.dmf.domain.IEntityID; import com.btmatthews.dmf.spring.IEntityDefinitionBean; /** * This class represents the serialized form of a domain object implemented * using CGLib. The readResolve() method recreates the actual domain object * after it has been deserialized into Serializable. You must define * &lt;spring-configured/&gt; in the application context. * * @param <S> * The interface that defines the properties of the base domain * object. * @param <T> * The interface that defines the properties of the derived domain * object. * @author <a href="mailto:[email protected]">Brian Matthews</a> * @version 1.0 */ @Configurable(preConstruction = true) public final class SerializedCGLibEntity<S extends IEntity<S>, T extends S> implements Serializable, BeanFactoryAware { /** * Used for logging. */ private static final Logger LOG = LoggerFactory .getLogger(SerializedCGLibEntity.class); /** * The serialization version number. */ private static final long serialVersionUID = 3830830321957878319L; /** * The application context. Note this is not serialized. */ private transient BeanFactory beanFactory; /** * The domain object name. */ private String entityName; /** * The domain object identifier. */ private IEntityID<S> entityId; /** * The domain object version number. */ private long entityVersion; /** * The attributes of the domain object. */ private HashMap<?, ?> entityAttributes; /** * The default constructor. */ public SerializedCGLibEntity() { SerializedCGLibEntity.LOG .debug("Initializing with default constructor"); } /** * Initialise with the attributes to be serialised. * * @param name * The entity name. * @param id * The domain object identifier. * @param version * The entity version. * @param attributes * The entity attributes. */ public SerializedCGLibEntity(final String name, final IEntityID<S> id, final long version, final HashMap<?, ?> attributes) { SerializedCGLibEntity.LOG .debug("Initializing with parameterized constructor"); this.entityName = name; this.entityId = id; this.entityVersion = version; this.entityAttributes = attributes; } /** * Inject the bean factory. * * @param factory * The bean factory. */ public void setBeanFactory(final BeanFactory factory) { SerializedCGLibEntity.LOG.debug("Injected bean factory"); this.beanFactory = factory; } /** * Called after deserialisation. The corresponding entity factory is * retrieved from the bean application context and BeanUtils methods are * used to initialise the object. * * @return The initialised domain object. * @throws ObjectStreamException * If there was a problem creating or initialising the domain * object. */ public Object readResolve() throws ObjectStreamException { SerializedCGLibEntity.LOG.debug("Transforming deserialized object"); final T entity = this.createEntity(); entity.setId(this.entityId); try { PropertyUtils.setSimpleProperty(entity, "version", this.entityVersion); for (Map.Entry<?, ?> entry : this.entityAttributes.entrySet()) { PropertyUtils.setSimpleProperty(entity, entry.getKey() .toString(), entry.getValue()); } } catch (IllegalAccessException e) { throw new InvalidObjectException(e.getMessage()); } catch (InvocationTargetException e) { throw new InvalidObjectException(e.getMessage()); } catch (NoSuchMethodException e) { throw new InvalidObjectException(e.getMessage()); } return entity; } /** * Lookup the entity factory in the application context and create an * instance of the entity. The entity factory is located by getting the * entity definition bean and using the factory registered with it or * getting the entity factory. The name used for the definition bean lookup * is ${entityName}Definition while ${entityName} is used for the factory * lookup. * * @return The domain object instance. * @throws ObjectStreamException * If the entity definition bean or entity factory were not * available. */ @SuppressWarnings("unchecked") private T createEntity() throws ObjectStreamException { SerializedCGLibEntity.LOG.debug("Getting domain object factory"); // Try to use the entity definition bean final IEntityDefinitionBean<S, T> entityDefinition = (IEntityDefinitionBean<S, T>)this.beanFactory .getBean(StringUtils.uncapitalize(this.entityName) + "Definition", IEntityDefinitionBean.class); if (entityDefinition != null) { final IEntityFactory<S, T> entityFactory = entityDefinition .getFactory(); if (entityFactory != null) { SerializedCGLibEntity.LOG .debug("Domain object factory obtained via enity definition bean"); return entityFactory.create(); } } // Try to use the entity factory final IEntityFactory<S, T> entityFactory = (IEntityFactory<S, T>)this.beanFactory .getBean(StringUtils.uncapitalize(this.entityName) + "Factory", IEntityFactory.class); if (entityFactory != null) { SerializedCGLibEntity.LOG .debug("Domain object factory obtained via direct look-up"); return entityFactory.create(); } // Neither worked! SerializedCGLibEntity.LOG.warn("Cannot find domain object factory"); throw new InvalidObjectException( "No entity definition or factory found for " + this.entityName); } }

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  • What are good or interesting Assembler-like languages, but at a higher level?

    - by CodexArcanum
    I've been looking at L.in.oleum and am intrigued by it's mix of higher-level constructs (loops, dynamic variables) with low-level assembler power (registers). Are there other languages like Lino out there, which blend the speed of assembler with productivity enhancing features? EDIT: I realized this kind of sounds like an ad. I'm genuinely interested in other assembler-like languages, Lino is just the only one I happen to know of.

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  • Why are so many new languages written for the Java VM?

    - by sdudo
    There are more and more programming languages (Scala, Clojure,...) coming out that are made for the Java VM and are therefore compatible with the Java Byte-Code. I'm beginning to ask myself: Why the Java VM? What makes it so powerful or popular that there are new programming languages, which seem gaining popularity too, created for it? Why don't they write a new VM for a new language?

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  • Is it possible to use multiple languages in .NET resource files?

    - by Gabe Brown
    We’ve got an interesting requirement that we’ll want to support multiple languages at runtime since we’re a service. If a user talks to us using Japanese or English, we’ll want to respond in the appropriate language. FxCop likes us to store our strings in resource files, but I was curious to know if there was an integrated way to select resource string at runtime without having to do it manually. Bottom Line: We need to be able to support multiple languages in a single binary. :)

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  • Same domain only : smtp; 5.1.0 - Unknown address error 530-'SMTP authentication is required

    - by user124672
    I have a very strange problem after moving my netwave.be domain from WebHost4Life to Arvixe. I configured several email adresses, like [email protected] and [email protected]. For POP3 I can use mail.netwave.be, a mailserver hosted by Arvixe. However, for SMTP I have to use relay.skynet.be. Skynet (Belgacom) is one of the biggest internet providers in Belgium and blocks smtp requests to external mailservers. So for years I've been using relay.skynet.be to send my messages using [email protected] as the sender. The worked perfectly. After moving my domain to Arvixe, this is no longer the case. I can send emails to people, no problem. I have received emails too, so I suspect that's ok too. But I can't send emails from one user of my domain to another user. For example, if I send a mail from [email protected] to [email protected], relay.skynet.be picks up the mail just fine. A few seconds later, I get a 'Delivery Status Notification (Failure)' mail that contains: Reporting-MTA: dns; mailrelay012.isp.belgacom.be Final-Recipient: rfc822;[email protected] Action: failed Status: 5.0.0 (permanent failure) Remote-MTA: dns; [69.72.141.4] Diagnostic-Code: smtp; 5.1.0 - Unknown address error 530-'SMTP authentication is required.' (delivery attempts: 0) Like I said, this only seems to be the case when both the sender and recipient are adresses of a domain hosted by Arvixe. I have serveral accounts not related to Arvixe at all. I can use relay.skynet.be to send mail to [email protected] using these accounts. Likewise, I can use relay.skynet.be to send mail from [email protected] to these accounts. but not from one Arvixe account to another. I hope I have clearly outlined the problem and someone will be able to help me.

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  • Changing Domain Name DNS to Redirect web traffic to one server, and leave mail to original server

    - by David S
    Hi there, Ok, quite the idiot with DNS.. apart from the basics. I have a domain name hosted with a domain registrar. It seems to have full DNS control (i.e. ability to view/edit A Records, Mail etc..) We have recently setup a server at Rackspace which hosts the new website The original/existing server (where the old website still is and Mail) is on another shared hosting companies server I went to the domain name registrar, and checked out the DNS management as follows: click here to view the DNS screenshot So obviously the A Record is pointing to the actual server where the website/mail is I figure, and the CNAME is pointing (alias?) to the website url. So my question is this: If I want the web traffic portion to go to the Rackspace/new server, but keep the mail going to where it is now, what do I have to change? Also, should I even change this info at the domain registrar? the rackspace server account has full DNS which seems to suggest I can point to their nameservers and then re-direct the MX (Mail) traffic to where the mail server is? Sorry if that was a bit confusing.. obviously in need of DNS training ;) Any help very appreciated. David.

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  • How to re-join an AD2003 domain with Samba after deleting the machine account?

    - by Guss
    During some troubleshooting I deleted the machine account for a Linux server running samba from our AD 2003 domain. We are using Kerberos for authentication, and after I deleted the machine account I tried to join the domain again using net ads join -U Administrator But I keep getting Kerberos errors like these: [2009/08/18 16:14:36, 0] libads/kerberos.c:ads_kinit_password(228) kerberos_kinit_password MACHINE$@MY.DOMAIN.COM failed: Client not found in Kerberos database Failed to join domain: Improperly formed account name It appears as if samba remembers that it once had an account with the AD and keeps trying to reconnect to it, but I want to create a new account from scratch. I tried to delete all the .tdb files I could find as well as everything under /var/cache/samba but to no avail - it still behaves the same. I also tried to create the machine account on the AD side, but then I get a similar error when I try to join, about failure to authenticate with the machine account - it looks like samba tries the previous machine account password and I don't know how to reset it, or even if I could figure out what samba uses - how to set it in the AD. Any help would be greatly appreciated, as at this point the only thing I can think about is to reformat and reinstall the machine, and I would really REALLY love to not do that. Thanks in advance.

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  • How to serve Rails application with Passenger/Apache without domain name?

    - by grifaton
    I am trying to serve a Rails application using Passenger and Apache on a Ubuntu server. The Passenger installation instructions say I should add the following to my Apache configuration file - I assume this is /etc/apache2/httpd.conf. <VirtualHost *:80> ServerName www.yourhost.com DocumentRoot /somewhere/public # <-- be sure to point to 'public'! <Directory /somewhere/public> AllowOverride all # <-- relax Apache security settings Options -MultiViews # <-- MultiViews must be turned off </Directory> </VirtualHost> However, I do not yet have a domain pointing at my server, so I'm not sure what I should put for the ServerName parameter. I have tried the IP address, but when I do that, restarting Apache gives apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName [Sun Jan 17 12:49:26 2010] [error] VirtualHost *:80 -- mixing * ports and non-* ports with a NameVirtualHost address is not supported, proceeding with undefined results apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName [Sun Jan 17 12:49:36 2010] [error] VirtualHost *:80 -- mixing * ports and non-* ports with a NameVirtualHost address is not supported, proceeding with undefined results and pointing the browser at the IP address gives a 500 Internal Server Error. The closest I have got to something sensible is with <VirtualHost efate:80> ServerName efate DocumentRoot /root/jpf/public <Directory /root/jpf/public> AllowOverride all Options -MultiViews </Directory> </VirtualHost> where "efate" is my server's host name. But now pointing my browser at the server's IP address just gives a page saying "It works!" - presumably this is a default page, but I'm not sure where this is being served from. I might be wrong in thinking that the reason I have been unable to get this to work is related to not having a domain name. This is the first time I have used Apache directly - any help would be most gratefully received!

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  • Can I get a domain controller not to act as DNS for the members?

    - by rsw
    Hi, Let me try to explain my current setup. I have one linux machine acting as DHCP and DNS (dhcpd3 and bind) in my network. This works fine, all computers I hook up to the network gets an IP address and proper DNS servers set. Let's call it 10.12.0.10 However, we also have a Windows Server 2003 Domain Controller in our network to which we add our Windows computers (running XP), let's call it 10.12.0.20. I noticed that when I run 'nslookup' on one of the windows machines, it says that the primary DNS is 10.12.0.20. This have not been much of a problem since: The Windows clients are stationary The Windows server in itself point out my real DHCP/DNS, since I can reach everything specified in it However, this turns out to be a problem when we use Laptops. They connect to the domain here and gets a DNS server, but when the user travels or connect the computer from home, we hit a problem. They are connected to their internet, but their DNS is 10.12.0.20 which they can't reach since they're at home and not at the office network. I solved this by removing the register key called "NameServer" with the value 10.12.0.20, but it gets set again whenever they logon to the domain the next time (when they get back to the office). Can I somehow make the computers take whatever DNS server they are handed when connecting to the internet or a home network, instead of always trying to reach the Domain Controller?

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