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• Windows: Impact of clean install Service Pack 2 to applications & data?

  - by Thomas Matthews

  My Windows Vista Home Premium system is corrupt and won't install Service Pack 2. I have followed all the advice from Microsoft and still no luck. I would like to perform a clean install of Vista, then SP1, and then SP2. My concern is the effect of the clean install on the registry, my apps and all my data. My plan: 1. Download Vista Service Pack 1 (SP1) ISO and write to DVD. 2. Download Vista Service Pack 2 (SP2) ISO and write to DVD. 3. Backup all data, applications and registry to external hard drive (file copy not disk image) 4. ?? Format hard drive?? (is this necessary?) 5. Install Vista from DVDs / CDs. 6. Install SP1 from DVD 7. Install SP2 from DVD 8. Restore registry, applications and data from external hard drive. My questions: 1. Is formatting the hard drive a necessary step? 2. Will restoring the registry from the backup corrupt the system? 3. Should I use Windows Backup or ZIP/RAR? 4. Any gotcha's that I should look out for? Background: I am using Windows Vista Home Premium with SP1. The sfc program does not finish due to a resources problem (even when run as administrator). I have 5 users on it. After a while, the screen goes black and shows an error message window about an error with login.scr. Standard accounts display a black screen and can't run any applications. Administrative accounts have no problems (even standard accounts when converted to Administrative have no problem). The CBS log contains a lot of 0x8000ffff and E_UNEXPECTED errors (which Microsoft defines as catastrophic failure). This is the reasoning behind performing a clean install up to service pack 2.

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• Win XP error 0x80041003 using GetObject/winmgmts

  - by John Lewis

  My computer is called "neil" and I want to set some values using WMI in vbScript. I adapetd the script below from one supplied by Microsoft. When I run it in my browser I get Error Type: (0x80041003) /dressage/30/pdf2.asp, line 8 I suspect it is some registry/security setting. Any advice? John Lewis FULL SCRIPT call Print_HTML_Page("http://neil/dressage/ascii.asp", "ascii") Sub SetPDFFile(strPDFFile) Const HKEY_LOCAL_MACHINE = &H80000002 strKeyPath = "SOFTWARE\Dane Prairie Systems\Win2PDF" strComputer = "." Set objReg=GetObject( _ "winmgmts:{impersonationLevel=impersonate}!\\" & _ strComputer & "\root\default:StdRegProv") strValueName = "PDFFileName" objReg.SetExpandedStringValue HKEY_LOCAL_MACHINE,_ strKeyPath,strValueName,strPDFFile End Sub Sub Print_HTML_Page(strPathToPage, strPDFFile) SetPDFFile( strPDFFile ) Set objIE = CreateObject("InternetExplorer.Application") 'From http://www.tek-tips.com/viewthread.cfm?qid=1092473&page=5 On Error Resume Next strPrintStatus = objIE.QueryStatusWB(6) If Err.Number 0 Then MsgBox "Cannot find a printer. Operation aborted." objIE.Quit Set objIE = Nothing Exit Sub End If With objIE .visible=0 .left=200 .top=200 .height=400 .width=400 .menubar=0 .toolbar=1 .statusBar=0 .navigate strPathToPage End With 'Wait until IE has finished loading Do while objIE.busy WScript.Sleep 100 Loop On Error Goto 0 objIE.ExecWB 6,2 'Wait until IE has finished printing WScript.Sleep 2000 objIE.Quit Set objIE = Nothing End Sub Update: Thanks for your reply. The line breaks seem to have been introduced in the process of paasting into this form. Well spotted - I was using a PDF file name "ascii". I added a .pdf extension but still get the error. I suspect you're right that it's to do with admin rights. Here's more about the setup and what I'm trying to achieve. Win2pdf is a product for writing PDFs by works by simulating a Windows printer. You "print" the page, select win2pdf in the print dialog and it then asks for a file name. I have it installed on my pc (called Neil) and it works fine in this conventional way. My aim is to write an html page to a PDF file using win2pdf - but via ASP/vbscript/javascript rather than with manual intervention. The script for doing this was provided by win2PDF's tech support but when it did not work, that was the limit of their understanding. In the sample script the file ascii.asp just produces a table of ascii codes/characters. The URL given is on my own PC which has IIS set up to run scripts which it does fine. The error I get occurs on about the fourth line executed. I am logged in with full admin rights - I think! But I'm no expert. I hope this helps to give some more specific suggestions about how to check/fix the admin rights.

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• Proxy / Squid 2.7 / Debian Wheezy 6.7 / lots of TCP Timed-out

  - by Maroon Ibrahim

  i'm facing a lot of TCP timed-out on a busy cache server and here below my sysctl.conf configuration as well as an output of "netstat -st" Kernel 3.2.0-4-amd64 #1 SMP Debian 3.2.57-3 x86_64 GNU/Linux Any advice or help would be highly appreciated #################### Sysctl.conf cat /etc/sysctl.conf net.ipv4.tcp_tw_reuse = 1 net.ipv4.tcp_tw_recycle = 1 fs.file-max = 65536 net.ipv4.tcp_low_latency = 1 net.core.wmem_max = 8388608 net.core.rmem_max = 8388608 net.ipv4.ip_local_port_range = 1024 65000 fs.aio-max-nr = 131072 net.ipv4.tcp_fin_timeout = 10 net.ipv4.tcp_keepalive_time = 60 net.ipv4.tcp_keepalive_intvl = 10 net.ipv4.tcp_keepalive_probes = 3 kernel.threads-max = 131072 kernel.msgmax = 32768 kernel.msgmni = 64 kernel.msgmnb = 65536 kernel.shmmax = 68719476736 kernel.shmall = 4294967296 net.ipv4.ip_forward = 1 net.ipv4.tcp_timestamps = 0 net.ipv4.conf.all.accept_redirects = 0 net.ipv4.tcp_window_scaling = 1 net.ipv4.tcp_sack = 0 net.ipv4.tcp_syncookies = 1 net.ipv4.ip_dynaddr = 1 vm.swappiness = 0 vm.drop_caches = 3 net.ipv4.tcp_moderate_rcvbuf = 1 net.ipv4.tcp_no_metrics_save = 1 net.ipv4.tcp_ecn = 0 net.ipv4.tcp_max_orphans = 131072 net.ipv4.tcp_orphan_retries = 1 net.ipv4.conf.default.rp_filter = 0 net.ipv4.conf.default.accept_source_route = 0 net.ipv4.tcp_max_syn_backlog = 32768 net.core.netdev_max_backlog = 131072 net.ipv4.tcp_mem = 6085248 16227328 67108864 net.ipv4.tcp_wmem = 4096 131072 33554432 net.ipv4.tcp_rmem = 4096 174760 33554432 net.core.rmem_default = 33554432 net.core.rmem_max = 33554432 net.core.wmem_default = 33554432 net.core.wmem_max = 33554432 net.core.somaxconn = 10000 # ################ Netstat results /# netstat -st IcmpMsg: InType0: 2 InType3: 233754 InType8: 56251 InType11: 23192 OutType0: 56251 OutType3: 437 OutType8: 4 Tcp: 20680741 active connections openings 63642431 passive connection openings 1126690 failed connection attempts 2093143 connection resets received 13059 connections established 2649651696 segments received 2195445642 segments send out 183401499 segments retransmited 38299 bad segments received. 14648899 resets sent UdpLite: TcpExt: 507 SYN cookies sent 178 SYN cookies received 1376771 invalid SYN cookies received 1014577 resets received for embryonic SYN_RECV sockets 4530970 packets pruned from receive queue because of socket buffer overrun 7233 packets pruned from receive queue 688 packets dropped from out-of-order queue because of socket buffer overrun 12445 ICMP packets dropped because they were out-of-window 446 ICMP packets dropped because socket was locked 33812202 TCP sockets finished time wait in fast timer 622 TCP sockets finished time wait in slow timer 573656 packets rejects in established connections because of timestamp 133357718 delayed acks sent 23593 delayed acks further delayed because of locked socket Quick ack mode was activated 21288857 times 839 times the listen queue of a socket overflowed 839 SYNs to LISTEN sockets dropped 41 packets directly queued to recvmsg prequeue. 79166 bytes directly in process context from backlog 24 bytes directly received in process context from prequeue 2713742130 packet headers predicted 84 packets header predicted and directly queued to user 1925423249 acknowledgments not containing data payload received 877898013 predicted acknowledgments 16449673 times recovered from packet loss due to fast retransmit 17687820 times recovered from packet loss by selective acknowledgements 5047 bad SACK blocks received Detected reordering 11 times using FACK Detected reordering 1778091 times using SACK Detected reordering 97955 times using reno fast retransmit Detected reordering 280414 times using time stamp 839369 congestion windows fully recovered without slow start 4173098 congestion windows partially recovered using Hoe heuristic 305254 congestion windows recovered without slow start by DSACK 933682 congestion windows recovered without slow start after partial ack 77828 TCP data loss events TCPLostRetransmit: 5066 2618430 timeouts after reno fast retransmit 2927294 timeouts after SACK recovery 3059394 timeouts in loss state 75953830 fast retransmits 11929429 forward retransmits 51963833 retransmits in slow start 19418337 other TCP timeouts 2330398 classic Reno fast retransmits failed 2177787 SACK retransmits failed 742371590 packets collapsed in receive queue due to low socket buffer 13595689 DSACKs sent for old packets 50523 DSACKs sent for out of order packets 4658236 DSACKs received 175441 DSACKs for out of order packets received 880664 connections reset due to unexpected data 346356 connections reset due to early user close 2364841 connections aborted due to timeout TCPSACKDiscard: 1590 TCPDSACKIgnoredOld: 241849 TCPDSACKIgnoredNoUndo: 1636687 TCPSpuriousRTOs: 766073 TCPSackShifted: 74562088 TCPSackMerged: 169015212 TCPSackShiftFallback: 78391303 TCPBacklogDrop: 29 TCPReqQFullDoCookies: 507 TCPChallengeACK: 424921 TCPSYNChallenge: 170388 IpExt: InBcastPkts: 351510 InOctets: -609466797 OutOctets: -1057794685 InBcastOctets: 75631402 #

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• Active Directory Partition Error

  - by BLAKE

  Right now my active directory is failing a dcdiag test. I can find no info online about this error. When I run dcdiag /test:crossrefvalidation, I get the output: .... Doing primary tests Testing server: Default-First-Site-Name\ad01 Running partition tests on : ForestDnsZones Starting test: CrossRefValidation ......................... ForestDnsZones passed test CrossRefValidation Running partition tests on : DomainDnsZones Starting test: CrossRefValidation ......................... DomainDnsZones passed test CrossRefValidation Running partition tests on : Schema Starting test: CrossRefValidation ......................... Schema passed test CrossRefValidation Running partition tests on : Configuration Starting test: CrossRefValidation ......................... Configuration passed test CrossRefValidation Running partition tests on : mydomain Starting test: CrossRefValidation ......................... mydomain passed test CrossRefValidation Running partition tests on : t Starting test: CrossRefValidation This cross-ref has a non-standard dNSRoot attribute. Cross-ref DN: CN=a3a24d3a-4782-460b-9148-86ac2d86b9ae,CN=Partitions,CN=Configuration, DC=mydomain,DC=com nCName attribute (Partition name): DC=t Bad dNSRoot attribute: dc01.mydomain.com Check with your network administrator to make sure this dNSRoot attribute is correct, and if not please change the attribute to the value below. dNSRoot should be: t It appears this partition (DC=t) failed to get completely created. This cross-ref (CN=a3a24d3a-4782-460b-9148-86ac2d86b9ae,CN=Partitions,CN=Configurat ion,DC=mydomain,DC=com) is dead and should be removed from the Active Directory. ......................... t failed test CrossRefValidation .... I used LDP from the windows support tools. I searched for the dnsRoot attribute in "cn=partitions,cn=configuration,dc=mydomain,dc=com", with the filter "(&(objectcategory=crossref)(systemFlags:1.2.840.113556.1.4.803:=5))" I got the result: ***Searching... ldap_search_s(ld, "cn=partitions,CN=Configuration,DC=mydomain,DC=com", 1, "(& (objectcategory=crossref)(systemFlags:1.2.840.113556.1.4.803:=5))", attrList, 0, &msg) Result <0>: (null) Matched DNs: Getting 3 entries: >> Dn: CN=65502be3-fc90-442a-83d8-4b3b91e82439,CN=Partitions,CN=Configuration,DC=mydomain,DC=com 1> dnsRoot: ForestDnsZones.mydomain.com; >> Dn: CN=a3a24d3a-4782-460b-9148-86ac2d86b9ae,CN=Partitions,CN=Configuration,DC=mydomain,DC=com 1> dnsRoot: ad01.mydomain.com; >> Dn: CN=f0ef5771-6225-4984-acd9-c08f582eb4e2,CN=Partitions,CN=Configuration,DC=mydomain,DC=com 1> dnsRoot: DomainDnsZones.mydomain.com; It looks like the bad partition has the name of my first domain controller 'ad01.mydomain.com'. I have googled for a while and have not been able to find any help or documentation about application partitions in Active Directory. Does anyone have any advice on how to cleanup this partition (or what the partition is for)? Does anyone know the repercussions for deleting this partition?

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• Sysadmin 101: How can I figure out why my server crashes and monitor performance?

  - by bflora

  I have a Drupal-powered site that seems to have neverending performance problems. It was butt-slow about 5 months ago. I brought in some guys who installed nginx for anonymous visitors, ajaxified a few queries so they wouldn't fire during page load, and helped me find a few bottlenecks in the code. For about a month, the site was significantly faster, though not "fast" by any stretch of the word. Meanwhile, I'm now shelling out $400/month to Slicehost to host a site that gets less than 5,000/uniques a day. Yes, you read that right. Go Drupal. Recently the site started crashing again and is slow again. I can't afford to hire people to come in, study my code from top to bottom, and make changes that may or may not help anymore. And I can't afford to throw more hardware at the problem. So I need to figure out what the problem is myself. Questions: When apache crashes, is it possible to find out what caused it to crash? There has to be a way, right? If so, how can I do this? Is there software I can use that will tell me which process caused my server to die? (e.g. "Apache crashed because someone visited page X." or "Apache crashed because you were importing too many RSS items from feed X.") There's got to be a way to learn this, right? What's a good, noob-friendly way to monitor my current apache performance? My developer friends tell me to "just use Top, dude," but Top shows me a bunch of numbers without any context. I have no clue what qualifies as a bad number or a good number in Top, or which processes are relevant and which aren't. Are there any noob-friendly server monitoring tools out there? Ideally, I could have a page that would give me a color-coded indicator about how apache is performing and then show me a list of processes or pages that are sucking right now. This way, I could know when performance is bad and then what's causing it to be so bad. Why does PHP memory matter? My apparently has a 30MB memory foot print. Will it run faster if I bring that number down? Thanks for any advice. I spent a year or so trying to boost my advertising income so I could hire a contractor to solve my performance woes. I didn't want to have to learn all this sysadmin voodoo. I'm now resigned to the fact that might not have a choice.

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• Can't set up printing from Mac OS X (10.5.7) to an HP PSC 2410 shared from PC running Ubuntu 9.10

  - by Weston C

  I've got an HP PSC 2410 printer shared from a fresh Ubuntu 9.10 installation. I'm able to send documents to this printer over the network from another Ubuntu machine. But so far, I haven't been able to find a setup where I can send documents to that printer from a MacBook running 10.5.7. On the Mac side, when setting things up, I go into System Prefs Print & Fax, click on the "+" mark, select "IP", pick "IPP", enter the IP address of the Ubuntu box, leave the queue blank, enter the Name and location, and I think it's when I get to the "Print Using" (driver selection) part that I'm running into issues. If I use "Auto Select", it defaults to "Generic PostScript Printer", which I doubt the PSC 2410 is (and sure enough, if I print, the jobs don't go through). If I try "Select a driver to use...", there's not an option for an HP PSC 2400. This seems a little odd: I can plug the printer directly into one of our Macs and it immediately figures out the driver and I can print no problem, but that's apparently the way things work. So, that leaves one option: "Other", which, when selected, brings up a dialog apparently for the purpose of manually locating a driver. I've tried visiting HP's web site. They have drivers for earlier versions of Mac OS X, but state that after 10.4, Mac OS X should just come with the relevant drivers. I've also tried setting things up by interacting with the CUPS server on the Mac through a browser: I go to http://localhost:631/, select "Add New Printer", pick "Internet Printing Protocol (http)" for the Device selection, enter "http://ubuntu.machine.ip.address:631/printers/hp-psc-2400-series" for the Device URI, select "HP" for Make, and then on the next screen, we're back to the problem where the PSC 2400 just doesn't show up. There's an option to "provide a PPD file", which I assume would be the printer driver I can't find. A Google search for "HP PSC 2410 ppd Leopard" doesn't seem to yield much other than a reminder that the printer is supposed to just work out of the box on Leopard. A local search for ".ppd" or "2410" on either Mac also doesn't yield anything that looks like a relevant print driver. I'm totally stuck at this point. Any advice?

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• Intermittent Disconnection of Client Computers from Domain Server

  - by dilip nagle

  The Background: I have Windows 2008 server Enterprise Version with 25 user cal licences. It has a domain and all users and a network shared HP printer in it. The Server has two network cards and both these cards as well as all client machines are on IP addressing scheme of 192.168.1.* with subnetmask 255.255.255.0. Of the two network cards viz. 192.168.1.231 and 192.168.1.233, only 192.168.1.231 is registered with DNS. In 192.168.1.233(i.e. 2nd network card) has default getway as 192.168.1.231 and dns address as 192.168.1.231. The Server has three hard disks with capacities as 500gb, 500gb and 1TB and are partitioned as (C,D,E), (F,G) and (K) with partition K having all user data into various Shared Folders. Each of these folders(On Partition K), are mapped onto each user's computer as per the right of access given to them. The Problem: The Server was installed about 6 months ago and till date not even once, the Server has Hung or has given any problem. All the Clients computers are able to run the web based software from their computers via ip address, e.g. http://192.168.1.231/webERP/default.aspx. However, occassionally, when any client computer tries to browse network mappings, it hangs. Again, there is no fixed pattern. This may happen after running smoothly for say 3 days. On each Client's machine, the network settings are as follows: IP Address: 192.168.1.* where * is 1,2,3 .... Sunnetmask: 255.255.255.0 defauly getway: 192.168.1.231 Which is a server card and DNS address. preferred DNS Server: 192.168.1.231 In Advanced Tab under Wins: LMHostLookup is Unticked and default is radio buttoned. Ideally, I would have loved to have Disabled NETBIOS over TCP/IP but some network printers do not get accessed if this option is enabled(ie. Radio Buttoned). Bacause Disabling Netbios will drastically reduce traffic of NETBIOS broadcasting to all the computers on the net to do naming resolution. On Server, I have WINs Running which I have Scavanged Records, verified Database Integrity etc, removed Tombstoned Records etc. The Critical Errors shown only once a day when the server is statred are 4224(WINS) and 12923 - Server Licencing failed to Update DNS Record. I fail to understand as why do client machines HANG when they try to browse mapped network shared folders on K Drive. Kindly Advice

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• Any reason not to disable the Windows pagefile given enough physical RAM?

  - by Evgeny

  The question of disabling the Windows pagefile has already been discussed quite a bit, for example here and here and here. People continue to upvote answers that say "you should not disable your pagefile even if you have plenty of RAM", but I have yet to see any concrete, verifiable reasons being given for this advice. As far as I can see, if you never need to read from the pagefile (because you have enough RAM) then performance could only be worse with it enabled due to Windows pre-emptively writing to it. At best, performance would be the same. I can't see how it could possibly be improved by writing data you never need to read. So my question is: Assuming that I have enough physical RAM for everything I do, is there any reason I should not disable the pagefile? Let's say the version of Windows is Windows XP x64 SP2 or Windows Server 2003 x64 SP2 (same thing). If it's different for Windows Server 2008 x64 I'd be interested to hear an answer for that as well. I'm looking for specific, objective reasons from good sources, not just opinions. Something like "here are the benchmarks done with and without a pagefile and the results were better with a pagefile, even with enough RAM" or "according to this MS KB article problem X occurs if you disable the pagefile". So far the only reasons I've seen mentioned are: Even if you think you have enough RAM you might run out. OK, but for the purposes of this question, let's just take it as a given that I have enough. Maybe I only ever read my email and I have 16GB RAM. Or 128GB. Or 1TB. Or whatever - but it's enough for 100% of what I do, 100% of the time. Another way to think of it is: if I have x MB physical RAM and y MB pagefile and I never run out of RAM in that configuration, would I not be better off, performance-wise, with x+y MB physical RAM and no pagefile? Windows is "used to" having a paging file and it might not function as reliably (from Understanding the Impact of RAM on Overall System Performance That's rather vague and I find it hard to believe, given that MS has provided the option to disable the pagefile. Windows knows what it's doing better than you. No - it doesn't know that I won't run more programs or load more data, but I do.

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• File Not Found error launching Guest OS in a non-administrator user account

  - by ToreTrygg

  Hi, I am running Fusion 2.0.6 (196839) on an iMac running 10.6.2 with 3 user accounts (1 Administrator). I have Fusion set up to share the Guest OS, and it's been working splendidly for nearly a year. Within the Guest OS (Windows XP PRO), there are also 3 user accounts (1 Administrator). Last night I went to back up my VM to an external drive, and to minimize the file size and transfer time, I deleted all Snapshots but the most-recent one. I then backed up the VM externally (28.23 GB). Today, one of my users tried to launch the Guest OS from within her user account, and received the following error message: "File Not Found: Windows XP Pro-000006.vmdk "This file is required to power on this virtual machine. If this file was moved, please provide its new location." My two choices are Cancel and Browse. When I browse, I can locate the Windows XP Pro-000006.vmdk file, which appears to be contained within the VM file (Windows XP Pro.vmwarevm). However, it still won't launch from a non-Admin user account. If I view the package contents of the VM file from the user account, the above file is present and appears to be created upon each launch of the Guest OS. If I go back to my Administrator account on the Mac and then launch Fusion, the Guest OS works perfectly for all 3 user accounts within XP Pro. I have tried to delete the Guest OS from Fusion's Library within the problem user account, then re-connect it to that Library, but the result is the same. The Guest OS data integrity is 100% -- but is accessible only from the OS X Administrator account. This problem only surfaced after deleting several older Snapshots. Again, the data is there, the Guest OS powers up normally in the Mac's Administrator account, but persistently returns the above error when attempting to power on from a non-Admin account on the Mac. I'm not sure how this is affecting the error, but when I look at Hard Disk Settings, the "unable-to-locate" file is the filename of the virtual HD. I don't want to make any changes to my (working) VM without any advice from the knowledgeable people on this forum. Any help will be greatly appreciated, thanks!

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• chrooting user causes "connection closed" message when using sftp

  - by George Reith

  First off I am a linux newbie so please don't assume much knowledge. I am using CentOS 5.8 (final) and using OpenSSH version 5.8p1. I have made a user playwithbits and I am attempting to chroot them to the directory home/nginx/domains/playwithbits/public I am using the following match statement in my sshd_config file: Match group web-root-locked ChrootDirectory /home/nginx/domains/%u/public X11Forwarding no AllowTcpForwarding no ForceCommand /usr/libexec/openssh/sftp-server # id playwithbits returns: uid=504(playwithbits) gid=504(playwithbits) groups=504(playwithbits),507(web-root-locked) I have changed the user's home directory to: home/nginx/domains/playwithbits/public Now when I attempt to sftp in with this user I instantly get the message: connection closed Does anyone know what I am doing wrong? Edit: Following advice from @Dennis Williamson I have connected in debug mode (I think... correct me if I'm wrong). I have made a bit of progress by using chmod to set permissions recursively of all files in the directly to 700. Now I get the following messages when I attempt to log on (still connection refused): Connection from [My ip address] port 38737 debug1: Client protocol version 2.0; client software version OpenSSH_5.6 debug1: match: OpenSSH_5.6 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.8 debug1: permanently_set_uid: 74/74 debug1: list_hostkey_types: ssh-rsa,ssh-dss debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: client->server aes128-ctr hmac-md5 none debug1: kex: server->client aes128-ctr hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST received debug1: SSH2_MSG_KEX_DH_GEX_GROUP sent debug1: expecting SSH2_MSG_KEX_DH_GEX_INIT debug1: SSH2_MSG_KEX_DH_GEX_REPLY sent debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: KEX done debug1: userauth-request for user playwithbits service ssh-connection method none debug1: attempt 0 failures 0 debug1: user playwithbits matched group list web-root-locked at line 91 debug1: PAM: initializing for "playwithbits" debug1: PAM: setting PAM_RHOST to [My host info] debug1: PAM: setting PAM_TTY to "ssh" debug1: userauth-request for user playwithbits service ssh-connection method password debug1: attempt 1 failures 0 debug1: PAM: password authentication accepted for playwithbits debug1: do_pam_account: called Accepted password for playwithbits from [My ip address] port 38737 ssh2 debug1: monitor_child_preauth: playwithbits has been authenticated by privileged process debug1: SELinux support disabled debug1: PAM: establishing credentials User child is on pid 3942 debug1: PAM: establishing credentials Changed root directory to "/home/nginx/domains/playwithbits/public" debug1: permanently_set_uid: 504/504 debug1: Entering interactive session for SSH2. debug1: server_init_dispatch_20 debug1: server_input_channel_open: ctype session rchan 0 win 2097152 max 32768 debug1: input_session_request debug1: channel 0: new [server-session] debug1: session_new: session 0 debug1: session_open: channel 0 debug1: session_open: session 0: link with channel 0 debug1: server_input_channel_open: confirm session debug1: server_input_global_request: rtype [email protected] want_reply 0 debug1: server_input_channel_req: channel 0 request env reply 0 debug1: session_by_channel: session 0 channel 0 debug1: session_input_channel_req: session 0 req env debug1: server_input_channel_req: channel 0 request subsystem reply 1 debug1: session_by_channel: session 0 channel 0 debug1: session_input_channel_req: session 0 req subsystem subsystem request for sftp by user playwithbits debug1: subsystem: cannot stat /usr/libexec/openssh/sftp-server: Permission denied debug1: subsystem: exec() /usr/libexec/openssh/sftp-server debug1: Forced command (config) '/usr/libexec/openssh/sftp-server' debug1: session_new: session 0 debug1: Received SIGCHLD. debug1: session_by_pid: pid 3943 debug1: session_exit_message: session 0 channel 0 pid 3943 debug1: session_exit_message: release channel 0 debug1: session_by_channel: session 0 channel 0 debug1: session_close_by_channel: channel 0 child 0 debug1: session_close: session 0 pid 0 debug1: channel 0: free: server-session, nchannels 1 Received disconnect from [My ip address]: 11: disconnected by user debug1: do_cleanup debug1: do_cleanup debug1: PAM: cleanup debug1: PAM: closing session debug1: PAM: deleting credentials

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• Resizing Partitions on Live RHEL/cPanel Server

  - by Timothy R. Butler

  I've resized many partitions over the years on Linux, Windows and Mac OS X -- but always using a GUI. However, the time has come where the preset partition sizes my data center placed on my server aren't the right sizes and I need to resize a production server's disks. I could fiddle with it and probably do OK, but given that it is a production server, I wanted to get some advice about the right way to do this. I do have KVM over IP access, so if it is best to take the server offline and boot off a rescue partition, I can do that. root [/var/lib/mysql]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda2 9.9G 2.1G 7.3G 23% / tmpfs 7.8G 0 7.8G 0% /dev/shm /dev/sda1 99M 77M 18M 82% /boot /dev/sda8 884G 463G 376G 56% /home /dev/sda3 9.9G 8.0G 1.5G 85% /usr /dev/sda5 9.9G 9.1G 308M 97% /var /usr/tmpDSK 2.0G 38M 1.8G 3% /tmp As you can see /var and /usr are quite close to being full and I've actually had to symlink some logs on /usr to directories in /home to balance things out. What I would like to do is to add 6-10 GB each to /usr and /var, presumably taking the space from /home. As I think about how the disk is arranged, the best thought I've come up with is to reduce /home by 16 GB, say, and move /var to the spot freed up, then allocating /var's space to /usr. However, that would put /var at the far end of the disk, which seems less than idea, given that MySQL has all of its data on that partition. I'd love to take the space out of the closer end of /usr, but I assume that would take a very arduous (and perhaps risky) process of moving all of the data in /usr around. I seem to recall having such a process fail for me on a computer in the past. The other option might be to merge / and /usr since / is underutilized, though I'm not sure if that's a good idea. Do you have any suggestions both on the best reallocation plan and the commands to use to accomplish it? UPDATE: I should add -- here's the partition table. There's one unused partition, which, if memory serves, was the original tmp location before I created a tmp image: Name Flags Part Type FS Type [Label] Size (MB) ------------------------------------------------------------------------------ Unusable 1.05* sda1 Boot Primary Linux ext2 106.96* sda2 Primary Linux ext3 10737.42* sda3 Primary Linux ext3 10737.42* sda5 NC Logical Linux ext3 10738.47* sda6 NC Logical Linux swap / Solaris 2148.54* sda7 NC Logical Linux ext3 1074.80* sda8 NC Logical Linux ext3 964098.53*

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• SMTP host name vs. domain in "From:" address vis-a-vis Email Deliverability

  - by Jared Duncan

  I'm trying to implement (or make sure that I'm correctly following) email sending best practices to improve deliverability, but the role of the smtp server's host name vs the domain name of the From: email address seems to be unclear, even after reading dozens of people's articles/input. Specifically, I understand that to satisfy the reverse DNS check, there must be a PTR record for the IP address of the sending machine that yields a domain name that matches the host name of the sending machine / SMTP server. Some say it needs to match the one given by the "hostname" command, most say it's the one provided with the HELO / EHLO statement, and this guy even says they MUST be the same (according to / enforced by what, I don't know; that's only a minor point of confusion, anyhow). First, what I can't find anywhere is whether or not the domain name of the From: email address needs to match the domain name of the SMTP server. So in my case, I have a VPS with linode. It primarily hosts a particular domain of mine, example.com, but I also sometimes do work on other projects: foo.com and bar.com. So what I'm wondering is if I can just leave the default linode PTR record (which resolves to abc.def.linode.com), make sure that abc.def.linode.com is what my mail server (qmail) is configured to say at HELO, and then proceed to use it to send out emails for example.com, foo.com, et al. If so, then I am confused by the advice given here, specifically (in a listing of bad case scenarios): No SPF record for the domain being used in the HELO command Why would THAT domain need an SPF record? And if it does, which domain should it provide whitelisting for: the HELO domain, or the domain of the From: email address (envelope sender)? Also, which domain would need to accept mail sent to [email protected]? If the domains must be the same, that would seem rather limiting to me, because then for every domain you wanted to send email from, you'd have to get another IP address for it. It would also compromise or ruin one's ability to do non-email sending things (e.g. wget) relatively anonymously. However, the upside--if this is the case--is that it would make for a far less confusing setup. I'm currently using the linode.com SMTP+PTR domain and example.com From: address combination without much of any deliverability issue, but my volume is very low and I'd like to know if someone out there has experience with larger volumes and has specifically tested the difference and/or has inside knowledge and/or has an authoritative answer (and source) for this particular question. I'm happy to clarify anything, let me know. Thanks in advance.

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• Custom built machine has much higher power consumption than expected

  - by foraidt

  I built a machine according to the specs of a computer magazine (c't, Germany). According to the magazine, the power consumption should be at around 10W. I don't want to go into the specifics of the hardware but rather ask for general advice on where to look: I updated the BIOS/UEFI version to the latest version, installed all the recommended drivers and unplugged all hardware that's not necessary to boot into Windows. All that was left is the power supply, mainboard, cpu, cpu cooler and one SSD drive. But still I measured a power consumption of 50W, which is 40W more than it should be. I tried booting Linux Mint from a USB stick, so I don't think it's some Windows-related problem.. Where else could I look? Update 1 I dind't want the question to get closed for being too localized but if more details are necessary, here they are: The system is a desktop PC. The power consumption is measured using a Brennenstuhl PM 231 device, which was tested also by c't and they found it quite accurate. The PSU is an Enermax ETL300AWT, the mainboard Intel DH87RL (Socket 1150) and the CPU Intel G3220 (Haswell). Update 2 There is no online version of the article*. The most details I found can be read on its project page (in German, though...) (*)You can pay for downloadable PDFs, however. English translation of that project page Update 3 Regarding the sceptics: It may sound ridiculous but apparently 10W idle consumption is possible with Intel's Haswell architecture. As a kind of proof, there's an additional Blog article explicitly listing the steps needed to reduce the idle consumption to 10W. Additional hardware: I measured the consumption without the HDD, and as expected the usage dropped by around 10W. I have no chassis fans and the CPU fan is a "Scythe Mugen 4" model. It runs at around 600rpm so I think it won't draw much. When stripping off all my extra components I should be at 10W. But I'm not getting anywhere near that. I would be happy to see "just" 15W in the stripped down version but currently I'm not getting below 50W no matter which component I remove. As I see it this cannot be explained by the PSU being less efficient at lower consumption. I also waited half an hour or so (also checked that no Windows updates were running in the background) and the consumption dind't drop by more than a few watts.

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• How should I set up my Hyper-V server and network topology?

  - by Daniel Waechter

  This is my first time setting up either Hyper-V or Windows 2008, so please bear with me. I am setting up a pretty decent server running Windows Server 2008 R2 to be a remote (colocated) Hyper-V host. It will be hosting Linux and Windows VMs, initially for developers to use but eventually also to do some web hosting and other tasks. Currently I have two VMs, one Windows and one Ubuntu Linux, running pretty well, and I plan to clone them for future use. Right now I'm considering the best ways to configure developer and administrator access to the server once it is moved into the colocation facility, and I'm seeking advice on that. My thought is to set up a VPN for access to certain features of the VMs on the server, but I have a few different options for going about this: Connect the server to an existing hardware firewall (an old-ish Netscreen 5-GT) that can create a VPN and map external IPs to the VMs, which will have their own IPs exposed through the virtual interface. One problem with this choice is that I'm the only one trained on the Netscreen, and its interface is a bit baroque, so others may have difficulty maintaining it. Advantage is that I already know how to do it, and I know it will do what I need. Connect the server directly to the network and configure the Windows 2008 firewall to restrict access to the VMs and set up a VPN. I haven't done this before, so it will have a learning curve, but I'm willing to learn if this option is better long-term than the Netscreen. Another advantage is that I won't have to train anyone on the Netscreen interface. Still, I'm not certain if the capabilities of the Windows software firewall as far as creating VPNs, setting up rules for external access to certain ports on the IPs of Hyper-V servers, etc. Will it be sufficient for my needs and easy enough to set up / maintain? Anything else? What are the limitations of my approaches? What are the best practices / what has worked well for you? Remember that I need to set up developer access as well as consumer access to some services. Is a VPN even the right choice?

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• Looking for Fiddler2 help. connection to gateway refused? Just got rid of a virus

  - by John Mackey

  I use Fiddler2 for facebook game items, and it's been a great success. I accessed a website to download some dat files I needed. I think it was eshare, ziddu or megaupload, one of those. Anyway, even before the rar file had downloaded, I got this weird green shield in the bottom right hand corner of my computer. It said a Trojan was trying to access my computer, or something to that extent. It prompted me to click the shield to begin anti-virus scanning. It turns out this rogue program is called Antivirus System Pro and is pretty hard to get rid of. After discovering the rogue program, I tried using Fiddler and got the following error: [Fiddler] Connection to Gateway failed.Exception Text: No connection could be made because the target machine actively refused it 127.0.0.1:5555 I ended up purchasing SpyDoctor + Antivirus, which I'm told is designed specifically for getting rid of these types of programs. Anyway, I did a quick-scan last night with spydoctor and malware bytes. Malware picked up 2 files, and Spydoctor found 4. Most were insignificant, but it did find a worm called Worm.Alcra.F, which was labeled high-priority. I don’t know if that’s the Anti-Virus Pro or not, but SpyDoctor said it got rid of all of those successfully. I tried to run Fiddler again before leaving home, but was still getting the "gateway failed" error. Im using the newest version of firefox. When I initially set up the Fiddler 2.2.8.6, I couldn’t get it to run at first, so I found this faq on the internet that said I needed to go through ToolsOptionsSettings and set up an HTTP Proxy to 127.0.0.1 and my Port to 8888. Once I set that up and downloaded this fiddler helper as a firefox add-on, it worked fine. When I turn on fiddler, it automatically takes my proxy setting from no proxy (default) to the 127.0.0.1 with Port 8888 set up. It worked fine until my computer detected this virus. Anyway, hopefully I've given you sufficient information to offer me your best advice here. Like I said, Spydoctor says the bad stuff is gone, so maybe the rogue program made some type of change in my fiddler that I could just reset or uncheck or something like that? Or will I need to completely remove fiddler and those dat files and rar files I downloaded? Any help would be greatly appreciated. Thanks for your time.

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• How to get rid of messages addressed to not existing subdomains?

  - by user71061

  Hi! I have small problem with my sendmail server and need your little help :-) My situation is as follow: User mailboxes are placed on MS exchanege server and all mail to and from outside world are relayed trough my sendmail box. Exchange server ----- sendmail server ------ Internet My servers accept messages for one main domain (say, my.domain.com) and for few other domains (let we narrow it too just one, say my_other.domain.com). After configuring sendmail with showed bellow abbreviated sendmail.mc file, essentially everything works ok, but there is small problem. I want to reject messages addressed to not existing recipients as soon as possible (to avoid sending non delivery reports), so my sendmail server make LDAP queries to exchange server, validating every recipient address. This works well both domains but not for subdomains. Such subdomains do not exist, but someone (I'm mean those heated spamers :-) could try addresses like this: user@any_host.my.domain.com or user@any_host.my_other.domain.com and for those addresses results are as follows: Messages to user@sendmail_hostname.my.domain.com are rejected with error "Unknown user" (due to additional LDAPROUTE_DOMAIN line in my sendmail.mc file, and this is expected behaviour) Messages to user@any_other_hostname.my.domain.com are rejected with error "Relaying denied". Little strange to me, why this time the error is different, but still ok. After all message was rejected and I don't care very much what error code will be returned to sender (spamer). Messages to user@sendmail_hostname.my_other.domain.com and user@any_other_hostname.my_other.domain.com are rejected with error "Unknown user" but only when, there is no user@my_other.domain.com mailbox (on exchange server). If such mailbox exist, then all three addresses (i.e. user@my_other.domain.com, user@sendmail_hostname.my_other.domain.com and user@any_other_hostname.my_other.domain.com) will be accepted. (adding additional line LDAPROUTE_DOMAIN(my_sendmail_host.my_other.domain.com) to my sendmail.mc file don't change anything) My abbreviated sendmail.mc file is as follows (sendmail 8.14.3-5). Both domains are listed in /etc/mail/local-host-names file (FEATURE(use_cw_file) ): define(`_USE_ETC_MAIL_')dnl include(`/usr/share/sendmail/cf/m4/cf.m4')dnl OSTYPE(`debian')dnl DOMAIN(`debian-mta')dnl undefine(`confHOST_STATUS_DIRECTORY')dnl define(`confRUN_AS_USER',`smmta:smmsp')dnl FEATURE(`no_default_msa')dnl define(`confPRIVACY_FLAGS',`needmailhelo,needexpnhelo,needvrfyhelo,restrictqrun,restrictexpand,nobodyreturn,authwarnings')dnl FEATURE(`use_cw_file')dnl FEATURE(`access_db', , `skip')dnl FEATURE(`always_add_domain')dnl MASQUERADE_AS(`my.domain.com')dnl FEATURE(`allmasquerade')dnl FEATURE(`masquerade_envelope')dnl dnl define(`confLDAP_DEFAULT_SPEC',`-p 389 -h my_exchange_server.my.domain.com -b dc=my,dc=domain,dc=com')dnl dnl define(`ALIAS_FILE',`/etc/aliases,ldap:-k (&(|(objectclass=user)(objectclass=group))(proxyAddresses=smtp:%0)) -v mail')dnl FEATURE(`ldap_routing',, `ldap -1 -T<TMPF> -v mail -k proxyAddresses=SMTP:%0', `bounce')dnl LDAPROUTE_DOMAIN(`my.domain.com')dnl LDAPROUTE_DOMAIN(`my_other.domain.com ')dnl LDAPROUTE_DOMAIN(`my_sendmail_host.my.domain.com')dnl define(`confLDAP_DEFAULT_SPEC', `-p 389 -h "my_exchange_server.my.domain.com" -d "CN=sendmail,CN=Users,DC=my,DC=domain,DC=com" -M simple -P /etc/mail/ldap-secret -b "DC=my,DC=domain,DC=com"')dnl FEATURE(`nouucp',`reject')dnl undefine(`UUCP_RELAY')dnl undefine(`BITNET_RELAY')dnl define(`confTRY_NULL_MX_LIST',true)dnl define(`confDONT_PROBE_INTERFACES',true)dnl define(`MAIL_HUB',` my_exchange_server.my.domain.com.')dnl FEATURE(`stickyhost')dnl MAILER_DEFINITIONS MAILER(smtp)dnl Could someone more experienced with sendmail advice my how to reject messages to those unwanted subdomains? P.S. Mailboxes @my_other.domain.com are used only for receiving messages and never for sending.

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• Why can I view my site over a 3G connection but not through my wifi?

  - by Jonathan

  So, I am sitting in my office with four computers on the same network and internet connection. Two of the computers can visit this particular website. Two of the computer get a message "Google Chrome could not find". I have tried FF and IE also with the same problem. I can view the site 90% of the time on two of the working computers although the site seems slow and sometimes I also get the same errors as the other two computers. I have flushed the DNS, reset the router, tested the site on other peoples computers with success. Is this likely to be a site issue, an ISP issue, a hosting issue? Any advice is greatly appreciated. Here is the ping from the working machine: C:\Users\Jon>ping www.balihaicruises.com Pinging www.balihaicruises.com [208.113.173.102] with 32 bytes of data: Reply from 208.113.173.102: bytes=32 time=331ms TTL=47 Reply from 208.113.173.102: bytes=32 time=327ms TTL=47 Reply from 208.113.173.102: bytes=32 time=326ms TTL=47 Reply from 208.113.173.102: bytes=32 time=329ms TTL=47 Ping statistics for 208.113.173.102: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 326ms, Maximum = 331ms, Average = 328ms Traceroute: Tracing route to www.balihaicruises.com [208.113.173.102] over a maximum of 30 hops: 1 1 ms 17 ms 3 ms 192.168.1.1 2 42 ms 37 ms 36 ms 180.254.224.1 3 39 ms 47 ms 40 ms 180.252.1.69 4 36 ms 616 ms 57 ms 61.94.115.221 5 84 ms 76 ms 80 ms 180.240.191.98 6 73 ms 80 ms 72 ms 180.240.191.97 7 157 ms 143 ms 116 ms 180.240.190.82 8 115 ms 113 ms 120 ms ae1-123.hkg11.ip4.tinet.net [183.182.80.93] 9 331 ms 332 ms 335 ms xe-3-2-1.was14.ip4.tinet.net [89.149.184.30] 10 327 ms 330 ms 331 ms internap-gw.ip4.tinet.net [77.67.69.254] 11 437 ms 415 ms 350 ms border10.pc2-bbnet2.wdc002.pnap.net [216.52.127.73] 12 322 ms 823 ms 398 ms dreamhost-2.border10.wdc002.pnap.net [216.52.125.74] 13 328 ms 336 ms 326 ms ip-208-113-156-4.dreamhost.com [208.113.156.4] 14 326 ms 328 ms 336 ms ip-208-113-156-14.dreamhost.com [208.113.156.14] 15 327 ms 331 ms 333 ms apache2-udder.crisp.dreamhost.com [208.113.173.102] And then for the machine that doesn't work: C:\Users\Microsoft>ping www.balihaicruises.com Ping request could not find host www.balihaicruises.com. Please check the name and try again. C:\Users\Microsoft>tracert www.balihaicruises.com Unable to resolve target system name www.balihaicruises.com.

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• Core i7 c1e and speedstepping - BSOD on shutdown

  - by DeaconDesperado

  I'm having an interesting problem with my recent Core i7 Digital Audio workstation build that I am curious to see if others have encountered. First, here are the specs on the machine. ASUS P6TD Deluxe Intel X58 Socket LGA1366 MB Intel Core i7-950 3.06Ghz 8M LGA1366 CPU CORSAIR DOMINATOR 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 Western Digital Caviar Black WD5001AALS 500GB Plus a couple ASUS optical drives and a 750W Corsair PSU. Running Windows 7 x64. All this is connected to the nefarious Digi 002 firewire audio interface for use with Pro Tools. I following mostly the specs posted by many other I7 users in the digidesign community who pooled their collective knowledge in this thread. Now after completing my build, I fell victim to the "UD5 squeal" described at that forum thread. So taking the advice posted, I disabled c1e advanced halt state and Intel speed stepping (I would likely have done this anyway to maintain a stable clock, power consumption isn't really a relevant concern on this machine.) I enabled XMP to set the ram timings properly as well. What I am experiencing is a BSOD upon shutdown, but only immediately after windows fully exits and ends all processes. The error is a MACHINE_CHECK_EXCEPTION 0x000000. The funny thing is that it is extremely intermitent and only occurs if the shutdown immediately followed a period of relative idleness. It does not a generate a minidump, I suspect because windows monitoring has terminated by the time this error occurs. No damage is evident and one can simply turn off manually and the system will act as though a proper shutdown had occurred. If anything it is a annoyance, I just want to be certain it is not affecting my long term stability. I have read that the i7 950 does not like DRAM voltages past 1.65, but that they are acceptable if they are within .5 of the BLCK setting. I have tried disabling XMP and setting all timings to auto and the problem still manifests in an identical way. It is suspect that the cpu idleness preceding shutdown is the determining factor, as both c1e and speedstepping are both settings intended to modify handling of this state. Any suggestions or prior experiences would be greatly appreciated. EDIT: The behavior very closely resembles what's described in this thread: http://www.tomshardware.com/forum/12003-63-shut-problem-windows The benign nature of it of is identical. I can't seem to download the hotfix cited there however.

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• PC monitors shut off and system hangs while playing 3D games, but sound continues - Diagnosis?

  - by Jon Schneider

  Two days ago, I started running into a problem with my Windows PC: The PC's two connected monitors simultaneously lose signal and go black (as though the PC had been powered off). The keyboard's Numlock, Capslock, and Scroll Lights will become "stuck" in their current positions, as though the PC is hung. (For example, the Numlock light on the keyboard remains lit regardless of me pressing the Numlock key repeatedly.) No keyboard input does anything. (Ctrl+Alt+Del, Ctrl+Shift+Esc, Ctrl+C, etc.) However -- Whatever sound/music the PC was playing continues to play, and the PC's fans continue running, so the PC hasn't powered itself off or rebooted itself. Opening up the case, the graphics card is pretty hot to the touch. I had this happen 3 times in one evening. In all cases, I was playing a game with 3D graphics when the problem occurred (Torchlight, Minecraft, Magic: The Gathering 2012, Avadon: The Black Fortress demo). I have yet to have the problem happen when I'm not playing a game. This system has been running stable for about 2.5 years prior to this. I didn't make any changes to the system prior to the problem starting to occur. System specs: OS: Windows 7 64-bit Processor: Intel Core 2 Duo E7200 Wolfdale 2.53GHz Video Card: XFX GeForce 9800 GT 512 MB Motherboard: Foxconn P45A-S LGA 775 Intel ATX RAM: Corsair 4 GB (2x 2GB) DDR2-800 (PC2 6400) Full specs: New PC 2008 Troubleshooting tried so far (the problem occurred again after taking each of these steps, one at a time): Updated the video drivers with the latest drivers from NVidia's site. Opened up the case and cleaned out the video card and processor fans (both were pretty dirty). Installed and ran temperature monitor software. The processor idles at about 50 degrees C, and goes up to about 63 degrees C while playing a game (seems on the warm side, but not excessively so?). The software wasn't able to report the temperature of the GPU -- not sure this particular GPU supports software temperature readout? My initial diagnosis is that maybe the GPU is on its last legs (given that it seems to be running pretty hot, and the problem only occurs while playing 3D games). Does this seem likely? Or is it likely that this problem is caused by the processor, RAM, or motherboard? Or could this be a software issue of some kind? Thanks for any advice!

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• nginx 502 bad gateway - fastcgi not listening? (Debian 5)

  - by Sean

  I have experience with nginx but it's always been pre-installed for me (via VPS.net pre-configured image). I really like what it does for me, and now I'm trying to install it on my own server with apt-get. This is a fairly fresh Debian 5 install. I have few extra packages installed but they're all .deb's, no manual compiling or anything crazy going on. Apache is already installed but I disabled it. I did apt-get install nginx and that worked fine. Changed the config around a bit for my needs, although the same problem I'm about to describe happens even with the default config. It took me a while to figure out that the default debian package for nginx doesn't spawn fastcgi processes automatically. That's pretty lame, but I figured out how to do that with this script, which I found posted on many different web sites: #!/bin/bash ## ABSOLUTE path to the PHP binary PHPFCGI="/usr/bin/php5-cgi" ## tcp-port to bind on FCGIPORT="9000" ## IP to bind on FCGIADDR="127.0.0.1" ## number of PHP children to spawn PHP_FCGI_CHILDREN=10 ## number of request before php-process will be restarted PHP_FCGI_MAX_REQUESTS=1000 # allowed environment variables sperated by spaces ALLOWED_ENV="ORACLE_HOME PATH USER" ## if this script is run as root switch to the following user USERID=www-data ################## no config below this line if test x$PHP_FCGI_CHILDREN = x; then PHP_FCGI_CHILDREN=5 fi ALLOWED_ENV="$ALLOWED_ENV PHP_FCGI_CHILDREN" ALLOWED_ENV="$ALLOWED_ENV PHP_FCGI_MAX_REQUESTS" ALLOWED_ENV="$ALLOWED_ENV FCGI_WEB_SERVER_ADDRS" if test x$UID = x0; then EX="/bin/su -m -c \"$PHPFCGI -q -b $FCGIADDR:$FCGIPORT\" $USERID" else EX="$PHPFCGI -b $FCGIADDR:$FCGIPORT" fi echo $EX # copy the allowed environment variables E= for i in $ALLOWED_ENV; do E="$E $i=${!i}" done # clean environment and set up a new one nohup env - $E sh -c "$EX" &> /dev/null & When I do a "ps -A | grep php5-cgi", I see the 10 processes running, that should be ready to listen. But when I try to view a web page via nginx, I just get a 502 bad gateway error. After futzing around a bit, I tried telneting to 127.0.0.1 9000 (fastcgi is listening on port 9000, and nginx is configured to talk to that port), but it just immediately closes the connection. This makes me think the problem is with fastcgi, but I'm not sure what I can do to test it. It may just be closing the connection because it's not getting fed any data to process, but it closes immediately so that makes me think otherwise. So... any advice? I can't figure it out. It doesn't help that it's 1AM, but I'm going crazy here!

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• "Error 1067: The process terminated unexpectedly" when trying to install MySQL on Win7 x64.

  - by Gravitas

  Hi, I've run into a brick wall trying to install MySQL v5.5 on my machine. My PC is Windows 7 x64, Enterprise edition. MySQL installs fine, but when I run the "MySQL Instance Configuration Wizard", it pauses forever on the step "Start Service" (I can let it run for 30 minutes with no response). If I go into services, I see that the "MySQL" service hasn't started, and if I try to start it, it says "Windows could not start MySQL Service on Local Computer. Error 1067: The process terminated unexpectedly." I've tried the following: Turning off firewall. Uninstalling all antivirus software. Installing / reinstalling 32-bit version of MySQL. Installing / reinstalling 64-bit version of MySQL. Uninstalling, deleting the contents of "C:\program files\MySQL" and "C:\program files (x86)\MySQL", reinstalling. Checking to see that there is no rogue services named MySQL???? (from a previous install). Checking that port 3306 is not used by an alternate program. Changing the default port that MySQL uses. Checking for "my.ini" and "my.ini.cnf" in "C:\windows" (nothing there but that can cause a problem). Running both MySQL installer, and configuration wizard, in "Adminstrator mode". Turning off UAC. Installing with defaults, not changing anything. Rebooting my machine (about 6 reboots so far). Opening up port 3306 in the firewall (both TCP and UDP, inbound and outbound). Swearing at the klutz of a programmer who designed MySQL so you can't even install it (as if that would help!) My machine is working 100% in every other way. InfiniDB (a MySQL compatible database) installs 100%, as does Visual Studio 2010, Microsoft SQL Server, etc, etc. Your advice on how to work around this? p.s. Here is the screen it got stuck on for 15 minutes until I killed the process: Update 2010-12-20 Tried MySQL v5.1, it didn't work either. Its amazing - if you type "mysqld /?", or "mysqld -help", it doesn't give you any help. And, if you try to restart the service manually, it doesn't display any error messages. Could it be any more unhelpful? Update 2010-12-21 Installed MySQL 6.0 alpha, and it worked. However, I'd rather not use an alpha release, given that the "stable" release is anything but :( Update 2010-12-21 Found http://dev.mysql.com/doc/refman/5.1/en/windows-troubleshooting.html, dealing with troubleshooting under Windows. Discovered that you can generate an error log if the service doesn't start - see here: http://dev.mysql.com/doc/refman/5.1/en/error-log.html

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• Email arrived in SPAM no matter I do SPF, DKIM, and others stuffs

  - by Xjet

  During a full day I tried to removed my email from SPAM (in google). So I start from scratch by instaling Postfix on debian, setup SPF and DKIM. Email stay in spam but header are here. So I continue to set up DMARC. So far so good. Here is my last header : Delivered-To: h********[email protected] Received: by 10.224.84.20 with SMTP id h20csp148174qal; Tue, 3 Jun 2014 01:16:22 -0700 (PDT) X-Received: by 10.112.148.165 with SMTP id tt5mr6432900lbb.61.1401783381908; Tue, 03 Jun 2014 01:16:21 -0700 (PDT) Return-Path: <[email protected]> Received: from bcp.monconcours.com ([188.226.227.141]) by mx.google.com with ESMTP id ue3si38630125lbb.3.2014.06.03.01.16.21 for <h********[email protected]>; Tue, 03 Jun 2014 01:16:21 -0700 (PDT) Received-SPF: pass (google.com: domain of [email protected] designates 188.226.227.141 as permitted sender) client-ip=188.226.227.141; Authentication-Results: mx.google.com; spf=pass (google.com: domain of [email protected] designates 188.226.227.141 as permitted sender) [email protected]; dkim=pass [email protected]; dmarc=pass (p=NONE dis=NONE) header.from=bcp.monconcours.com Received: by bcp.monconcours.com (Postfix, from userid 33) id 9EA90614F2; Tue, 3 Jun 2014 08:16:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=monconcours.com; s=mail; t=1401783380; bh=IHAmfgk+Ge5iunMmbPMRKPHJrHsCmMebmJkS/G3zk7w=; h=To:Subject:From:To:Reply-To:Date; b=w/cIlRwSFhNS0TIKJj6yd2R3PeKDkkSf/ht2x4FV4l1jOlgsEwsXN8m4aJQMO0uCA hG4AOUgIGAlCoP5qrgLGtRYgjVbKXmHY0cjMxUvbVDKI0xymzSxzuPqoIXWD3COe+v +W57zmEFcq93pJvDUivJzgIWbYFy6SRWe495ups0= To: h*****[email protected] Subject: Creads.fr vous remercie de votre visite, Buissness Angel pour 3 million X-PHP-Originating-Script: 0:testmail.php From: "Banque BCP - Concours photo #teamportugal" <[email protected]> To: hu*****[email protected] Reply-To: "Banque BCP - Concours photo #teamportugal" <[email protected]> MIME-Version: 1.0 Content-Type: multipart/alternative;boundary=np538d84549a709 Content-Transfer-Encoding: 8bit Organization: Creads Digital X-Priority: 3 X-Mailer: PHP5.4.4-14+deb7u9 Message-Id: <[email protected]> Date: Tue, 3 Jun 2014 08:16:20 +0000 (UTC) This is a MIME encoded message. --np538d84549a709 Content-type: text/plain;charset=utf- I've also noticed a warn log for opendmarc : warning: connect to Milter service inet:127.0.0.1:8893: Connection refused But it seems that DMARC pass anyway... I've setup the correct DNS for DKIM and SPF, domain name or ip is not blacklisted. I've test on http://www.mail-tester.com/web-rMZjFj&reloaded=12 Most things seems ok but I can't fix the Reverse DNS issue (I don't have access to the main server). I begin to be pretty annoyed by the problem that's why I need expert advice/help.

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• Looking for Fiddler2 help. connection to gateway refused...just got rid of a virus?

  - by john mackey

  I use Fiddler2 for facebook game items, and it's been a great success. I accessed a website to download some dat files I needed. I think it was eshare, ziddu or megaupload, one of those. Anyway, even before the rar file had downloaded, I got this weird green shield in the bottom right hand corner of my computer. It said a Trojan was trying to access my computer, or something to that extent. It prompted me to click the shield to begin anti-virus scanning. It turns out this rogue program is called Antivirus System Pro and is pretty hard to get rid of. After discovering the rogue program, I tried using Fiddler and got the following error: [Fiddler] Connection to Gateway failed. Exception Text: No connection could be made because the target machine actively refused it 127.0.0.1:5555 I ended up purchasing SpyDoctor + Antivirus, which I'm told is designed specifically for getting rid of these types of programs. Anyway, I did a quick-scan last night with spydoctor and malware bytes. Malware picked up 2 files, and Spydoctor found 4. Most were insignificant, but it did find a worm called Worm.Alcra.F, which was labeled high-priority. I don’t know if that’s the Anti-Virus Pro or not, but SpyDoctor said it got rid of all of those successfully. I tried to run Fiddler again before leaving home, but was still getting the "gateway failed" error. Im using the newest version of firefox. When I initially set up the Fiddler 2.2.8.6, I couldn’t get it to run at first, so I found this faq on the internet that said I needed to go through ToolsOptionsSettings and set up an HTTP Proxy to 127.0.0.1 and my Port to 8888. Once I set that up and downloaded this fiddler helper as a firefox add-on, it worked fine. When I turn on fiddler, it automatically takes my proxy setting from no proxy (default) to the 127.0.0.1 with Port 8888 set up. It worked fine until my computer detected this virus. Anyway, hopefully I've given you sufficient information to offer me your best advice here. Like I said, Spydoctor says the bad stuff is gone, so maybe the rogue program made some type of change in my fiddler that I could just reset or uncheck or something like that? Or will I need to completely remove fiddler and those dat files and rar files I downloaded? Any help would be greatly appreciated. Thanks for your time.

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• FreeBSD jail with IPFW with loopback - unable to connect loopback interface

  - by khinester

  I am trying to configure a one IP jail with loopback interface, but I am unsure how to configure the IPFW rules to allow traffic to pass between the jail and the network card on the server. I have followed http://blog.burghardt.pl/2009/01/multiple-freebsd-jails-sharing-one-ip-address/ and https://forums.freebsd.org/viewtopic.php?&t=30063 but without success, here is what i have in my ipfw.rules # vim /usr/local/etc/ipfw.rules ext_if="igb0" jail_if="lo666" IP_PUB="192.168.0.2" IP_JAIL_WWW="10.6.6.6" NET_JAIL="10.6.6.0/24" IPF="ipfw -q add" ipfw -q -f flush #loopback $IPF 10 allow all from any to any via lo0 $IPF 20 deny all from any to 127.0.0.0/8 $IPF 30 deny all from 127.0.0.0/8 to any $IPF 40 deny tcp from any to any frag # statefull $IPF 50 check-state $IPF 60 allow tcp from any to any established $IPF 70 allow all from any to any out keep-state $IPF 80 allow icmp from any to any # open port ftp (20,21), ssh (22), mail (25) # ssh (22), , dns (53) etc $IPF 120 allow tcp from any to any 21 out $IPF 130 allow tcp from any to any 22 in $IPF 140 allow tcp from any to any 22 out $IPF 150 allow tcp from any to any 25 in $IPF 160 allow tcp from any to any 25 out $IPF 170 allow udp from any to any 53 in $IPF 175 allow tcp from any to any 53 in $IPF 180 allow udp from any to any 53 out $IPF 185 allow tcp from any to any 53 out # HTTP $IPF 300 skipto 63000 tcp from any to me http,https setup keep-state $IPF 300 skipto 63000 tcp from any to me http,https setup keep-state # deny and log everything $IPF 500 deny log all from any to any # NAT $IPF 63000 divert natd ip from any to any via $jail_if out $IPF 63000 divert natd ip from any to any via $jail_if in but when i create a jail as: # ezjail-admin create -f continental -c zfs node 10.6.6.7 /usr/jails/node/. /usr/jails/node/./etc /usr/jails/node/./etc/resolv.conf /usr/jails/node/./etc/ezjail.flavour.continental /usr/jails/node/./etc/rc.d /usr/jails/node/./etc/rc.conf 4 blocks find: /usr/jails/node/pkg/: No such file or directory Warning: IP 10.6.6.7 not configured on a local interface. Warning: Some services already seem to be listening on all IP, (including 10.6.6.7) This may cause some confusion, here they are: root syslogd 1203 6 udp6 *:514 *:* root syslogd 1203 7 udp4 *:514 *:* i get these warning and then when i go into the jail environment, i am unable to install any ports. any advice much appreciated.

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• Troubleshooting an NFS server hanging after authenticated mount request

  - by Christoph

  I need some advice on troubleshooting an NFS server problem on Scientific Linux (RHEL) 6.1. The log on the server shows that an authenticated mount request was made: Jan 13 16:30:02 ??? rpc.mountd[3996]: authenticated mount request from ????:784 for /shared-storage/cm/shared (/shared-storage/cm/shared) But after that, it does not continue. On the client, it is also hanging. The interesting thing now is that I have two NFS servers, which should be identical, and the one is working perfectly, but the other exhibits the above mentioned behaviour. The problem is also not completely persistent, i. e. sometimes the mount request succeeds. I assume that the problem must be related to the server rather than to the client, because it is working perfectly on the other server. My question is where I should search the problem. I have already re-created the exports using exportfs -r, I have restarted the NFS server, I have compared the rpcinfo outputs of both server - no success. The problem even survives a reboot. Any other ideas are appreciated. As answer to Tim's question: I have sporadically the following in dmesg, but do not know whether it is related e1000e 0000:0c:00.0: eth4: Detected Hardware Unit Hang: TDH <24> TDT <25> next_to_use <25> next_to_clean <24> buffer_info[next_to_clean]: time_stamp <1c3d12940> next_to_watch <24> jiffies <1c3d12940> next_to_watch.status <0> MAC Status <80383> PHY Status <792d> PHY 1000BASE-T Status <7800> PHY Extended Status <3000> PCI Status <10> Further edit: The problem above does not occur on the machine that is working, so it probably is related. Again an edit: The error is not on the (software) device that is used for NFS, but on another one. The NFS mount also does not trigger the message.

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