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  • exceptions in C++

    - by helloWorld
    I have some techniacal question, in this function: string report() const { if(list.begin() == list.end()){ throw "not good"; } //do something } if I throw exception what is going on with the program? Will my function terminate or it will run further? if it terminates, what value will it return?

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  • Should I use "return;" after a header()?

    - by Scarface
    Quick question, I noticed that on some of my header directors I was getting some lag while the header processed. Is using return standard after using headers? Also if you use a header on pages you don't want directly accessed, such as processing pages will return; stop that processing even if the page is not directly accessed? IF return is a good idea would it be better to use exit()?

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  • usleep() php5 uses 40% of idle CPU

    - by Marcin
    Hi guys I have a weird question, I have a cli php script which uses usleep (somtimes 1sec, sometimes 2sec, somtimes 100ms it depends) if there is some wait required, but what I have noticed its that once on usleep() it seems to use about 40% of idle CPU: Cpu(s): 5.3%us, 21.3%sy, 0.0%ni, 57.2%id, 0.0%wa, 0.0%hi, 0.0%si, 16.1%st any ideas ? cheers

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  • How to apply %% to a variable in a script with input parameter?

    - by murxx
    Hi, I asked a question yesterday about how to manage to get %% around a variable without getting the evaluation. Well, the thing is, it does not work that way in my case... I have a .bat file which gets an input parameter. Later on I want to use the value of this input parameter and put %...% around, like: call script.bat testValue script.bat: set inputPar=%1 set newValue=%%inputPar%% Now I get: echo %inputPar% testValue echo %newValue% %inputPar% But I would like to get: echo %newValue% %testValue% Is that somehow possible?

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  • How to ignore %% from being evaluated?

    - by murxx
    Hi, one of my variables has the value %val% - this is exactly the name! So: set variable=%val% What happens now is that when running the script the variable will be set to nothing as the %val% is being evaluated! But this is not what I want... How can I tell DOS to ignore the %-sign here? Can anybody out there help me with my question? Thanks a lot...

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  • Is it standard compliant to write font-size: 62.5%/1.2em in CSS?

    - by powerboy
    I noticed that some stylesheets have something like this: body { font-size: 62.5%/1.2em; } I got a warning "unexpected token /" when I wrote this in NetBeans. And if I changed the EM value, say, body { font-size: 62.5%/1em; } the computed font-size remained 16px. My question is, Is it standard compliant to write something like that? And how to computed the actual font-size?

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  • Mako "Missing parentheses in %def"

    - by michaelmior
    In trying to add a cached section to a Mako template, I get the error listed in the above question. Adding () to the end gets rid of the error, but I see no content on my page. Any help is appreciated! <%def name="test" cached="True" cache_timeout="60" cache_type="file"> Test /%def>

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  • How to rewrite a URL with %23 in it?

    - by Jan P.
    I have a (wordpress) blog where after commenting the users are redirected back to the page with an anchor to their comment. Should look like this: http://example.org/foo-bar/#comment-570630 But somehow I get a lot of 404 ins my logfiles for such URLs: http://example.org/foo-bar/%23comment-570630 Is there a way to write a .htaccess rewrite rule to fix this? Bonus question: Any idea why this happens and what I can do about it?

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  • Apache SSO through Kerberos using Machine Account

    - by watkipet
    I'm attempting to get Apache on Ubuntu 12.04 to authenticate users via Kerberos SSO to a Windows 2008 Active Directory server. Here are a few things that make my situation different: I don't have administrative access to the Windows Server (nor will I ever have access). I also cannot have any changes to the server made on my behalf. I've joined Ubuntu server to the Active Directory using PBIS open. Users can log into the Ubuntu server using their AD credentials. kinit also works fine for each user. Since I can't change AD (except for adding new machines and SPNs), I cannot add a service account for Apache on Ubuntu. Since I can't add I service account, I have to use the machine keytab (/etc/krb5.keytab), or at least use the machine password in another keytab. Right now I'm using the machine keytab and giving Apache readonly access (bad idea, I know). I've already added the SPN using net ads keytab add HTTP -U Since I'm using Ubuntu 12.04, the only encoding types that get added during "net ads keytab add" are arcfour-hmac, des-cbc-crc, and des-cbc-md5. PBIS adds the AES encoding types to the host and cifs principals when it joins the domain, but I have yet to get "net ads keytab add" to do this. ktpass and setspn are out of the question because of #1 above. I've configured (for Kerberos SSO) and tested both IE 8 Firefox. I'm using the following configuration in my Apache site config: <Location /secured> AuthType Kerberos AuthName "Kerberos Login" KrbMethodNegotiate On KrbMethodK5Passwd On KrbAuthRealms DOMAIN.COM Krb5KeyTab /etc/krb5.keytab KrbLocalUserMapping On require valid-user </Location> When Firefox tries to connect get the following in Apache's error.log (LogLevel debug): [Wed Oct 23 13:48:31 2013] [debug] src/mod_auth_kerb.c(1628): [client 192.168.0.2] kerb_authenticate_user entered with user (NULL) and auth_type Kerberos [Wed Oct 23 13:48:31 2013] [debug] mod_deflate.c(615): [client 192.168.0.2] Zlib: Compressed 477 to 322 : URL /secured [Wed Oct 23 13:48:37 2013] [debug] src/mod_auth_kerb.c(1628): [client 192.168.0.2] kerb_authenticate_user entered with user (NULL) and auth_type Kerberos [Wed Oct 23 13:48:37 2013] [debug] src/mod_auth_kerb.c(994): [client 192.168.0.2] Using HTTP/[email protected] as server principal for password verification [Wed Oct 23 13:48:37 2013] [debug] src/mod_auth_kerb.c(698): [client 192.168.0.2] Trying to get TGT for user [email protected] [Wed Oct 23 13:48:37 2013] [debug] src/mod_auth_kerb.c(609): [client 192.168.0.2] Trying to verify authenticity of KDC using principal HTTP/[email protected] [Wed Oct 23 13:48:37 2013] [debug] src/mod_auth_kerb.c(652): [client 192.168.0.2] krb5_rd_req() failed when verifying KDC [Wed Oct 23 13:48:37 2013] [error] [client 192.168.0.2] failed to verify krb5 credentials: Decrypt integrity check failed [Wed Oct 23 13:48:37 2013] [debug] src/mod_auth_kerb.c(1073): [client 192.168.0.2] kerb_authenticate_user_krb5pwd ret=401 user=(NULL) authtype=(NULL) [Wed Oct 23 13:48:37 2013] [debug] mod_deflate.c(615): [client 192.168.0.2] Zlib: Compressed 477 to 322 : URL /secured When IE 8 tries to connect I get: [Wed Oct 23 14:03:30 2013] [debug] src/mod_auth_kerb.c(1628): [client 192.168.0.2] kerb_authenticate_user entered with user (NULL) and auth_type Kerberos [Wed Oct 23 14:03:30 2013] [debug] mod_deflate.c(615): [client 192.168.0.2] Zlib: Compressed 477 to 322 : URL /secured [Wed Oct 23 14:03:30 2013] [debug] src/mod_auth_kerb.c(1628): [client 192.168.0.2] kerb_authenticate_user entered with user (NULL) and auth_type Kerberos [Wed Oct 23 14:03:30 2013] [debug] src/mod_auth_kerb.c(1240): [client 192.168.0.2] Acquiring creds for HTTP@apache_server [Wed Oct 23 14:03:30 2013] [debug] src/mod_auth_kerb.c(1385): [client 192.168.0.2] Verifying client data using KRB5 GSS-API [Wed Oct 23 14:03:30 2013] [debug] src/mod_auth_kerb.c(1401): [client 192.168.0.2] Client didn't delegate us their credential [Wed Oct 23 14:03:30 2013] [debug] src/mod_auth_kerb.c(1420): [client 192.168.0.2] GSS-API token of length 9 bytes will be sent back [Wed Oct 23 14:03:30 2013] [debug] src/mod_auth_kerb.c(1101): [client 192.168.0.2] GSS-API major_status:000d0000, minor_status:000186a5 [Wed Oct 23 14:03:30 2013] [error] [client 192.168.0.2] gss_accept_sec_context() failed: Unspecified GSS failure. Minor code may provide more information (, ) [Wed Oct 23 14:03:30 2013] [debug] mod_deflate.c(615): [client 192.168.0.2] Zlib: Compressed 477 to 322 : URL /secured Let me know if you'd like additional log and config files--the initial question is getting long enough.

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  • Microsoft 2003 DNS sometimes cant query for some A pointers when their TTL expires

    - by Bq
    Warning Long question :) We have a win 2003 server with a DNS server, every now and then it cant provide us with some A pointers for a specific domain. I have a small script running which asks for SOA,NS and A records for the domain in question and sometimes when the TTL expires the DNS fails to get the A records again, a Clear Cache fixes the problem.. Have a look Here it worked when the TTL expired Thu Apr 29 15:24:20 METDST 2010 dig basefarm.net soa basefarm.net. 64908 IN SOA ns01.osl.basefarm.net. hostmaster.basefarm.net. 2010042613 86400 3600 2419200 600 ns01.osl.basefarm.net. 299 IN A 81.93.160.4 dig basefarm.net ns basefarm.net. 64908 IN NS ns01.sth.basefarm.net. basefarm.net. 64908 IN NS ns01.osl.basefarm.net. ns01.sth.basefarm.net. 299 IN A 80.76.149.76 ns01.osl.basefarm.net. 299 IN A 81.93.160.4 dig ns01.sth.basefarm.net a ns01.sth.basefarm.net. 299 IN A 80.76.149.76 The TTL expired for ns01.sth.basefarm.net and ns01.osl.basefarm.net but the DNS managed to get the new values (TTL 3600) Thu Apr 29 15:29:20 METDST 2010 dig basefarm.net soa basefarm.net. 64608 IN SOA ns01.osl.basefarm.net. hostmaster.basefarm.net. 2010042613 86400 3600 2419200 600 ns01.osl.basefarm.net. 3600 IN A 81.93.160.4 dig basefarm.net ns basefarm.net. 64608 IN NS ns01.sth.basefarm.net. basefarm.net. 64608 IN NS ns01.osl.basefarm.net. ns01.sth.basefarm.net. 3600 IN A 80.76.149.76 ns01.osl.basefarm.net. 3600 IN A 81.93.160.4 dig ns01.sth.basefarm.net a ns01.sth.basefarm.net. 3600 IN A 80.76.149.76 But then another time it fails, and we need to clear the dns cache for it to start working again... Thu Apr 29 17:24:23 METDST 2010 dig basefarm.net soa basefarm.net. 57705 IN SOA ns01.osl.basefarm.net. hostmaster.basefarm.net. 2010042613 86400 3600 2419200 600 ns01.osl.basefarm.net. 299 IN A 81.93.160.4 dig basefarm.net ns basefarm.net. 57705 IN NS ns01.sth.basefarm.net. basefarm.net. 57705 IN NS ns01.osl.basefarm.net. ns01.sth.basefarm.net. 299 IN A 80.76.149.76 ns01.osl.basefarm.net. 299 IN A 81.93.160.4 dig ns01.sth.basefarm.net a ns01.sth.basefarm.net. 299 IN A 80.76.149.76 The TTL expires but the DNS cant get the ip addresses for ns01.sth.basefarm.net and ns01.osl.basefarm.net Thu Apr 29 17:29:23 METDST 2010 dig basefarm.net soa basefarm.net. 57405 IN SOA ns01.osl.basefarm.net. hostmaster.basefarm.net. 2010042613 86400 3600 2419200 600 ns01.osl.basefarm.net. 3600 IN A 81.93.160.4 dig basefarm.net ns basefarm.net. 57405 IN NS ns01.sth.basefarm.net. basefarm.net. 57405 IN NS ns01.osl.basefarm.net. dig ns01.sth.basefarm.net a Lookup failed I'm really lost on this one and have tried asking Google but to no avail..

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  • How to use Bonjour?

    - by Roman
    First, what exactly Bonjour does (pleas read my guesses written bellow)? Here I found out that Bonjour enables automatic discovery of computers, devices, and services on IP networks. But I thought that it not only "discovers devices on IP network" it also creates an IP network by assigning IP addresses to devices where Bonjour is running. Am I right? And I still miss the essence. Does it work in the following way? First I connect devices (for example laptops) physically so that they potentially can communicate with each other. Then, let say, on some laptops I have Bonjour running and then, as a consequence, these laptops assign IP addresses to them self in automatic way. So, laptops (where Bonjour is running) build an IP network. Does it work in this way? Or may be a computer running Bonjour is not considered as a service and it does not broadcast itself just because Bonjour is running on this computer. I mean that the applications running on the computers need to use Bonjour to broadcast themself. So, it is applications that broadcast themself (not computers) and it is not done automatically (application needs to broadcast themself explicitly). Is it right? How exactly my application can broadcast itself? Can I use command line to register an service (so that all applications using Bonjour knows that a new service appeared)? Further, I would like to have an application which use the IP network created by Bonjour. For that my application needs to know which devices/services are present in the network. In more details, my application needs to have a list of services. Each service in the list should have a name, the IP address where it is running and the port which is used by the application. Can Bonjour provide this information in some way? If it is the case, how exactly it works. How my program can get this information from Bonjour? Can my program read some file created by Bonjour and containing the above mentioned information? Can I use some commands in command line to retrieve this information? I have a special interest in accessing the information about services from files, environment variables or commands in command line. These options seems to me to be the simplest! Since in these case I do not need to use any additional libraries to communicate with Bonjour from a particular programming language. P.S. Pleas ask questions if something is not clear in my question. I will try to formulate my question in a more clear way. P.P.S. I use Windows 7. ADDED: I plan to write my applications in PHP. Every computer should run a Apache web server. And I want to use Bonjour to help computer discover each other (computers are working in a local network).

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  • Useful software for netbook?

    - by Moayad Mardini
    I'm looking for recommendations of good software that are particularly useful for netbooks. Software that run great on small screens and low CPU/RAM requirments. I'll start off with the following : Operating Systems: Ubuntu Netbook Remix. Easy Peasy: A fork of Ubuntu Netbook Remix that was once called UBuntu EEE. It isn't just for eeePCs though. Definitely worth a look if vanilla Netbook Remix isn't cutting it. (MarkM) Damn Small Linux (Source) Windows 7: With trimming the installation or compressing the Windows directory to fit on an 8GB SSD. (Will Eddins) nLite: A utility to install a lightweight version of Windows XP without the unnecessary components (like Media Player, Internet Explorer, Outlook Express, MSN Explorer, Messenger...). Utilites: TouchFreeze: To disable the touch pad while typing (Source) InSSIDer: Not only does it make it easier to find and keep a wireless connection, but it turns a netbook into the perfect mobile tool for troubleshooting wireless networks. (phenry) AltMove: Adds more functionality to your mouse for interacting with windows. (Rob) ASUS Font Resizer Utility and other tools by ASUS, specific to ASUS Eee PC series. Internet: Run FileZilla FTP client for a small screen : You can hide a lot of FileZilla's interface parts in the View menu, even the directory trees. Go into Settings = Interface and move the message log next to the transfer queue, if you haven't hidden them both or you want to see them. Select a theme with 16x16 icons. (Source) IDEs and Text Editors: Best lightweight IDE/Text Editor: A question on Stack Overflow that has many good suggestions of IDEs and general text editors for programmers. What’s a good linux C/C++ IDE for a low-res screen?: IDEs for Linux-powered netbooks. Online tools: Dropbox: Since the Netbook has limited disk space, you would like to use Cloud Apps like Dropbox and Ubuntu One so that you don't run out of space especially if you are on a holiday. Later when you go back to your desktop with big hard disk,you can take out the files from your dropbox repo. (Manish Sinha) Google products: like Docs, Calendar and Reader (aviraldg) Web sites and software lists: Netbookfiles.com: Netbook specific software downloads. Software Apps to Maximise your Netbook Battery Power: Netbooks are known for their portability. Not only are they small and lightweight but with their increased power efficiency, batteries can last much longer than conventional laptops. This also means you no longer have to carry a power adapter with you! Several brands emphasis the longevity of the battery as a strong selling point, and for those people who travel a lot, it sure is. Free Must-Have Netbook Apps: Finding software for netbooks can present challenges due to limited hard drive space, processor power, RAM, and screen real-estate. That doesn't mean you have to do without essential programs. The apps below cover all the bases -- entertainment, productivity, security, and communication -- without compromising on performance or usability. Best of all, they're free! Useful Netbook Software: With short battery lives and small resolution screens Netbooks, unlike many other computers on the market, could so with some specific software for their use. Now, not all of those I’ve found are specifically designed for Netbooks, but all are relevant. And they’re designed for Windows XP. The question is community wiki, so feel free to edit it. Updated, thank you all for suggestions.

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  • Roaming user profile issues on Server 2008

    - by Alicia White
    I thought I cleared a user's profile from 2008, but it keeps coming back. So, I was looking for the best way to clear a roaming profile in Server 2008, but I have been unable to find anything. But, I did see the post here: http://serverfault.com/questions/18724/user-profile-keeps-loading-temp-profile I wanted to add a comment to that post, but it was closed as not being related to sysadmin. But, I think it IS related because I dealt with precisely this same problem on our Wndows 2008 terminal server. Here was the issue: we have a user who was getting an "unable to load your roaming profile" type of error at logon in Windows 2008. Looking at the server, we could see her temp profile listed in the profile list while she was loggged (listed as a "temporary" and not a "roaming" profile). While she was logged on, a folder called C:\Users\Temp.DOMAIN existed in the users folder, but that disappeared as soon as she logged out. When this thing happened in 2003, we would clear the contents of the roaming profile folder & delete the temp folder in C:\Documents and Settings. The thing is, 2008 behaves a bit differently. Server 2008 created a new roaming profile folder in the roaming profile folder share: \SERVER\ProfileShare\UserName.V2 The local profile disappears from the profile list in System Properties, so there is no profile to clear Also the local profile folder, C:\Users\Temp.DOMAIN doesn't stay on the server when the user logs out, so we can't delete that as we would normally do when this sort of thing happens in Windows 2003 Despite all of this, every time the user logs back on, the frickin' Temp profile always comes back. One of my team-mates, who is much more experienced with 2008, said I should check the registry for the user's profile in this key (the users are listed by SID): HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsNT\CurrentVersion\ProfileList I saw the user's SID listed there, but it ended in .BAK. I checked several other servers where she is having the same profile errors: in all cases, her SID ended with .BAK. For example (xxx replacing the LONG SID): HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\S-1-5-21-xxxxx-xxxx.bak On the server she was logged on to, there were two keys for her profile in the registry: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\S-1-5-21-xxxxx-xxxx and HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\S-1-5-21-xxxxx-xxxx.bak So, here is how I cleared up the issue. I had the user log off. I deleted the apparently bad profiles ending in .BAK from the ProfileList key on each server where it appeared. I made sure her roaming profile folder was empty I made sure that all the TEMP profile folders were gone The user logged back on: no more profile errors! Anyway, I wanted to make a comment on that closed question, but I didn't see any way to re-open the question so I could add it. But, I also would like to know if this is the best practice to clear out a bad roaming profile for Server 2008? I'm having a hard time finding any instructions on line on how best to do this, but this method I used seemed to work. I'd like to find some documentation to give to our Level 1 support staff so they will know how to clear user profiles on 2008 since this seems to be more involved that clearing user profiles in server 2003. Thanks, Alicia

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  • NetBackup with VSS and Instant Recovery - Failing to delete old snapshots

    - by Jonathan Bourke
    We are attempting to implement Microsoft VSS for snap-shotting in our NetBackup 6.5.3.1 environment. The clients are both 32 & 64 bit Windows 2003 Server. Snapshot parameters are: Instant recovery is enabled Maximum snapshots = 1 Provider type = 1 (System) Snapshot attribute = 1 (Differential) All backups successfully complete, and VSS shadows are successfully created both for the snapshot backup and for the open files (shadow copy components). The Issue: NetBackup is not clearing or overwriting old snapshots with each successive backup. When we list shadows, and shadow storage, it is increasing and increasing. IT is not honouring the Maximum Snapshot setting. The Logs: The bpfis log doesn’t really appear to show any errors other than for methods which we are not employing (VxVM, Flashsnap, etc.). A section is as follows: 11:54:10.744 [348.4724] <2> logparams: D:\Program Files\Veritas\NetBackup\bin\bpfis.exe delete -nbu -id htpststr001.san.mgmt.det_1248918143 -bpstart_to 300 -bpend_to 300 -clnt htpststr001.san.mgmt.det 11:54:10.744 [348.4724] <4> bpfis: INF - BACKUP START 348 11:54:11.713 [348.4724] <8> onlfi_initialize_vfms: VfMS error 10; see following messages: 11:54:11.713 [348.4724] <8> onlfi_initialize_vfms: Non-fatal method error was reported 11:54:11.713 [348.4724] <8> onlfi_initialize_vfms: vfm_configure_fi_one: method: FlashSnap, type: FIM, function: FlashSnap_init 11:54:11.713 [348.4724] <8> onlfi_initialize_vfms: VfMS method error 3; see following message: 11:54:11.713 [348.4724] <8> onlfi_initialize_vfms: FlashSnap_init: Veritas Volume Manager not installed. 11:54:11.713 [348.4724] <8> onlfi_initialize_vfms: VfMS error 10; see following messages: 11:54:11.713 [348.4724] <8> onlfi_initialize_vfms: Non-fatal method error was reported 11:54:11.713 [348.4724] <8> onlfi_initialize_vfms: vfm_configure_fi_one: method: vxvm, type: FIM, function: vxvm_init 11:54:11.713 [348.4724] <8> onlfi_initialize_vfms: VfMS method error 3; see following message: 11:54:11.713 [348.4724] <8> onlfi_initialize_vfms: vxvm_init: Veritas Volume Manager not installed. 11:54:11.713 [348.4724] <4> onlfi_thaw: Thawing C:\ using snapshot method VSS. 11:54:11.713 [348.4724] <2> onlfi_vfms_logf: vfm_thaw: delete snapshot ... 11:54:11.744 [348.4724] <2> onlfi_vfms_logf: snapshot services: emcclariionfi:Thu Jul 30 2009 11:54:11.744000 <Thread id - 4724> Unable to import any login credentials for any appliances. 11:54:11.760 [348.4724] <2> onlfi_vfms_logf: snapshot services: hpevafi:Thu Jul 30 2009 11:54:11.760000 <Thread id - 4724> CHpEvaPlugin::init: CLI tool is not installed. 11:54:11.760 [348.4724] <2> onlfi_vfms_logf: snapshot services: hpmsafi:Thu Jul 30 2009 11:54:11.760000 <Thread id - 4724> No array mangement credentials are available in configuration file. 11:54:13.806 [348.4724] <4> onlfi_thaw: do_thaw return value: 0 11:54:13.806 [348.4724] <4> onlfi_thaw: Thawing D:\ using snapshot method VSS. 11:54:15.806 [348.4724] <4> onlfi_thaw: do_thaw return value: 0 11:54:19.806 [348.4724] <2> fis_delete_id: removing D:\Program Files\Veritas\NetBackup\online_util\fi_cntl\bpfis.fim.htpststr001.san.mgmt.det_1248918143.0 11:54:19.806 [348.4724] <2> fis_delete_id: removing D:\Program Files\Veritas\NetBackup\online_util\fi_cntl\bpfis.fim.htpststr001.san.mgmt.det_1248918143.0.fiid 11:54:19.853 [348.4724] <4> bpfis: INF - EXIT STATUS 0: the requested operation was successfully completed The Question: Has anyone any experience of NetBackup / VSS not clearing snapshots after backups? We will ultimately be using a HP EVA for the snapshots, but we want to ensure correct functioning at a VSS level before we go further. Regards, Jonathan (PS: Question previously posted by my colleague on entsupport.symantec.com)

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  • What free space thresholds/limits are advisable for 640 GB and 2 TB hard disk drives with ZEVO ZFS on OS X?

    - by Graham Perrin
    Assuming that free space advice for ZEVO will not differ from advice for other modern implementations of ZFS … Question Please, what percentages or amounts of free space are advisable for hard disk drives of the following sizes? 640 GB 2 TB Thoughts A standard answer for modern implementations of ZFS might be "no more than 96 percent full". However if apply that to (say) a single-disk 640 GB dataset where some of the files most commonly used (by VirtualBox) are larger than 15 GB each, then I guess that blocks for those files will become sub optimally spread across the platters with around 26 GB free. I read that in most cases, fragmentation and defragmentation should not be a concern with ZFS. Sill, I like the mental picture of most fragments of a large .vdi in reasonably close proximity to each other. (Do features of ZFS make that wish for proximity too old-fashioned?) Side note: there might arise the question of how to optimise performance after a threshold is 'broken'. If it arises, I'll keep it separate. Background On a 640 GB StoreJet Transcend (product ID 0x2329) in the past I probably went beyond an advisable threshold. Currently the largest file is around 17 GB –  – and I doubt that any .vdi or other file on this disk will grow beyond 40 GB. (Ignore the purple masses, those are bundles of 8 MB band files.) Without HFS Plus: the thresholds of twenty, ten and five percent that I associate with Mobile Time Machine file system need not apply. I currently use ZEVO Community Edition 1.1.1 with Mountain Lion, OS X 10.8.2, but I'd like answers to be not too version-specific. References, chronological order ZFS Block Allocation (Jeff Bonwick's Blog) (2006-11-04) Space Maps (Jeff Bonwick's Blog) (2007-09-13) Doubling Exchange Performance (Bizarre ! Vous avez dit Bizarre ?) (2010-03-11) … So to solve this problem, what went in 2010/Q1 software release is multifold. The most important thing is: we increased the threshold at which we switched from 'first fit' (go fast) to 'best fit' (pack tight) from 70% full to 96% full. With TB drives, each slab is at least 5GB and 4% is still 200MB plenty of space and no need to do anything radical before that. This gave us the biggest bang. Second, instead of trying to reuse the same primary slabs until it failed an allocation we decided to stop giving the primary slab this preferential threatment as soon as the biggest allocation that could be satisfied by a slab was down to 128K (metaslab_df_alloc_threshold). At that point we were ready to switch to another slab that had more free space. We also decided to reduce the SMO bonus. Before, a slab that was 50% empty was preferred over slabs that had never been used. In order to foster more write aggregation, we reduced the threshold to 33% empty. This means that a random write workload now spread to more slabs where each one will have larger amount of free space leading to more write aggregation. Finally we also saw that slab loading was contributing to lower performance and implemented a slab prefetch mechanism to reduce down time associated with that operation. The conjunction of all these changes lead to 50% improved OLTP and 70% reduced variability from run to run … OLTP Improvements in Sun Storage 7000 2010.Q1 (Performance Profiles) (2010-03-11) Alasdair on Everything » ZFS runs really slowly when free disk usage goes above 80% (2010-07-18) where commentary includes: … OpenSolaris has changed this in onnv revision 11146 … [CFT] Improved ZFS metaslab code (faster write speed) (2010-08-22)

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  • Postfix/SMTPD Relay Access Denied when sending outside the network

    - by David
    I asked a very similar question some 4 or 5 months ago, but haven't tracked down a suitable answer. I decided to post a new question so that I can ... a) Post updated info b) post my most current postconf -n output When a user sends mail from inside the network (via webmail) to email addresses both inside and outside the network, the email is delivered. When a user with an email account on the system sends mail from outside the network, using the server as the relay, to addresses inside the network, the email is delivered. But [sometimes] when a user connects via SMTPD to send email to an external address, a Relay Access Denied error is returned: Feb 25 19:33:49 myers postfix/smtpd[8044]: NOQUEUE: reject: RCPT from host-68-169-158-182.WISOLT2.epbfi.com[68.169.158.182]: 554 5.7.1 <host-68-169-158-182.WISOLT2.epbfi.com[68.169.158.182]>: Client host rejected: Access denied; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<my-computer-name> Feb 25 19:33:52 myers postfix/smtpd[8044]: disconnect from host-68-169-158-182.WISOLT2.epbfi.com[68.169.158.182] Sending this through Microsoft Outlook 2003 generates the above log. However, sending through my iPhone, with the exact same settings, goes through fine: Feb 25 19:37:18 myers postfix/qmgr[3619]: A2D861302C9: from=<[email protected]>, size=1382, nrcpt=1 (queue active) Feb 25 19:37:18 myers amavis[2799]: (02799-09) FWD via SMTP: <[email protected]> -> <[email protected]>,BODY=7BIT 250 2.0.0 Ok, id=02799-09, from MTA([127.0.0.1]:10025): 250 2.0.0 Ok: queued as A2D861302C9 Feb 25 19:37:18 myers amavis[2799]: (02799-09) Passed CLEAN, [68.169.158.182] [68.169.158.182] <[email protected]> -> <[email protected]>, Message-ID: <[email protected]>, mail_id: yMLvzVQJloFV, Hits: -9.607, size: 897, queued_as: A2D861302C9, 6283 ms Feb 25 19:37:18 myers postfix/lmtp[8752]: 2ED3A1302C8: to=<[email protected]>, relay=127.0.0.1[127.0.0.1]:10024, delay=6.6, delays=0.25/0.01/0.19/6.1, dsn=2.0.0, status=sent (250 2.0.0 Ok, id=02799-09, from MTA([127.0.0.1]:10025): 250 2.0.0 Ok: queued as A2D861302C9) Feb 25 19:37:18 myers postfix/qmgr[3619]: 2ED3A1302C8: removed Outgoing Settings on Outlook 2003 match the settings on my iPhone: SMTP server: mail.my-domain.com Username: My full email address Uses SSL Server Port 587 Now, here's postconf -n. I realize the "My Networks" Parameter is a bit nasty. I have these IP addresses in here for just this reason, as others have been complaining of this problem too: alias_database = hash:/etc/postfix/aliases alias_maps = $alias_database append_dot_mydomain = no biff = no broken_sasl_auth_clients = yes command_directory = /usr/sbin config_directory = /etc/postfix content_filter = amavisfeed:[127.0.0.1]:10024 daemon_directory = /usr/libexec/postfix debug_peer_level = 2 disable_vrfy_command = yes html_directory = no inet_interfaces = all mail_owner = postfix mail_spool_directory = /var/spool/mail mailbox_size_limit = 0 mailq_path = /usr/bin/mailq manpage_directory = /usr/share/man message_size_limit = 20480000 mydestination = $myhostname, localhost, localhost.$mydomain mydomain = my-domain.com myhostname = myers.my-domain.com mynetworks = 127.0.0.0/8, 74.125.113.27, 74.125.82.49, 74.125.79.27, 209.85.161.0/24, 209.85.214.0/24, 209.85.216.0/24, 209.85.212.0/24, 209.85.160.0/24 myorigin = $myhostname newaliases_path = /usr/bin/newaliases queue_directory = /var/spool/postfix readme_directory = /usr/share/doc/postfix-2.3.3/README_FILES receive_override_options = no_address_mappings recipient_delimiter = + relay_domains = $mydestination sample_directory = /usr/share/doc/postfix-2.3.3/samples sendmail_path = /usr/sbin/sendmail setgid_group = postdrop smtp_bind_address = my-primary-server's IP address smtpd_banner = mail.my-domain.com smtpd_helo_required = yes smtpd_sasl_auth_enable = yes smtpd_sasl_path = private/auth smtpd_sasl_type = dovecot smtpd_tls_auth_only = yes smtpd_tls_cert_file = /etc/ssl/mailserver/postfix.pem smtpd_tls_key_file = /etc/ssl/mailserver/private/postfix.pem smtpd_tls_loglevel = 3 smtpd_tls_received_header = no smtpd_tls_session_cache_timeout = 3600s smtpd_use_tls = yes tls_random_source = dev:/dev/urandom unknown_local_recipient_reject_code = 554 virtual_alias_maps = mysql:/etc/postfix/mysql-virtual-alias-maps.cf,mysql:/etc/postfix/mysql-email2email.cf virtual_gid_maps = static:5000 virtual_mailbox_base = /var/vmail virtual_mailbox_domains = mysql:/etc/postfix/mysql-virtual-mailbox-domains.cf virtual_mailbox_maps = mysql:/etc/postfix/mysql-virtual-mailbox-maps.cf virtual_minimum_uid = 5000 virtual_transport = dovecot virtual_uid_maps = static:5000 If anyone has any ideas and can help me finally solve this issue once and for all, I'd be eternally grateful.

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  • Increase samba space on open suse 12.1

    - by Kapil Sharma
    I know linux basics but not an expert. IT guy left the job here and there is some time before new hire. So sorry if question is very basic. We have local testing server based on Open SUSE 12.1, which also act as shared drive between dev/mgmt team here and using Samba for that. Now we are running out of space on samba, even though server's 2*1TB harddisk is nearly 90% free. My question is, what is limiting Samba and how can I increase its limit? We need around at least 500 GB as shared drive but currently its just 25 GB. I don't need step by step answer, just a link to any helpful article would be sufficient. Probably I'm putting wrong keywords in google so not getting any helpful link. EDIT: Output of commands in the first comment. All commands were run as root user df -h (getting error with df -ht) Filesystem Size Used Avail Use% Mounted on rootfs 30G 5.1G 23G 19% / devtmpfs 2.0G 36K 2.0G 1% /dev tmpfs 2.0G 1.1M 2.0G 1% /dev/shm tmpfs 2.0G 676K 2.0G 1% /run /dev/sda2 30G 5.1G 23G 19% / tmpfs 2.0G 0 2.0G 0% /sys/fs/cgroup tmpfs 2.0G 676K 2.0G 1% /var/run tmpfs 2.0G 0 2.0G 0% /media tmpfs 2.0G 676K 2.0G 1% /var/lock /dev/sda3 36G 31G 3.3G 91% /home fdisk -l /dev/[hmsv]d* Disk /dev/sda: 80.0 GB, 80026361856 bytes 255 heads, 63 sectors/track, 9729 cylinders, total 156301488 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x2d4a2d49 Device Boot Start End Blocks Id System /dev/sda1 2048 16771071 8384512 82 Linux swap / Solaris /dev/sda2 * 16771072 79681535 31455232 83 Linux /dev/sda3 79681536 156301311 38309888 83 Linux Disk /dev/sda1: 8585 MB, 8585740288 bytes 255 heads, 63 sectors/track, 1043 cylinders, total 16769024 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/sda1 doesn't contain a valid partition table Disk /dev/sda2: 32.2 GB, 32210157568 bytes 255 heads, 63 sectors/track, 3915 cylinders, total 62910464 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System Disk /dev/sda3: 39.2 GB, 39229325312 bytes 255 heads, 63 sectors/track, 4769 cylinders, total 76619776 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/sda3 doesn't contain a valid partition table vgs No volume groups found lvs No volume groups found output of vi /etc/samba/smb.conf # smb.conf is the main Samba configuration file. You find a full commented # version at /usr/share/doc/packages/samba/examples/smb.conf.SUSE if the # samba-doc package is installed. # Date: 2011-11-02 [global] workgroup = WORKGROUP passdb backend = tdbsam printing = cups printcap name = cups printcap cache time = 750 cups options = raw map to guest = Bad User include = /etc/samba/dhcp.conf logon path = \\%L\profiles\.msprofile logon home = \\%L\%U\.9xprofile logon drive = P: usershare allow guests = Yes [homes] comment = Home Directories valid users = %S, %D%w%S browseable = No read only = No inherit acls = Yes [profiles] comment = Network Profiles Service path = %H read only = No store dos attributes = Yes create mask = 0600 directory mask = 0700 [users] comment = All users path = /home read only = No inherit acls = Yes veto files = /aquota.user/groups/shares/ [groups] comment = All groups path = /home/groups read only = No inherit acls = Yes [printers] comment = All Printers path = /var/tmp printable = Yes create mask = 0600 browseable = No [print$] comment = Printer Drivers path = /var/lib/samba/drivers write list = @ntadmin root force group = ntadmin create mask = 0664 directory mask = 0775 [allusers] comment = All Users path = /home/shares/allusers valid users = @users force group = users create mask = 0660 directory mask = 0771 writable = yes

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