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• Ubuntu whois package and request limits

  - by Sam Hammamy

  I'm writing a django app with a form that accepts an IP and does a whois lookup on the discovered domain names. I've found the Ubuntu package whois which I plan to call from a python subprocess, and read the stdout into a StringIO, then parse for things like Registrar, Name Servers, etc. My question is, it seems that there are many paid whois services, which means that there must be a reason why people don't just use this Ubuntu package. I'm wondering if there's a request limit on the number of requests from a single IP to the package's whois server? I will probably be making 250 domain lookups per IP or maybe more. Also, I've found that some domains aren't searchable: qmul.ac.uk is searchable kat.ph is not searchable ahram.org.eg is not searchable Any particular reason for that?

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• Installation requirements of django installing in hostgator dedicated server

  - by jaypabs

  First, before I install OSQA on my dedicated server at hostgator, I want to know the requirements. I don't want to screw up my server so it's better to ask question first. I have read a lot of tutorial on the internet regarding Django but I want to clarify something before I proceed. On my dedicated server I don't use FCGI. Instead I use Mod SuPHP. A lot of tutorial is talking about installing python using FCGI. My question is if it is safe to install Python if I'm using SuPHP? Is it safe to use the tutorial on this link: http://wiki.osqa.net/display/docs/Installing+OSQA+on+CentOS6?focusedCommentId=4784144 Thanks in advance for your help.

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• Issues with Server 2012 using DFSR running on Hyper-V 2012

  - by Bryan

  We have a number of Server 2012 systems, all of which run virtualised on Hyper-V 2012 server. We are having problems with two such virtual instances, both of which are used as file servers, whereby they occasionally stop responding to requests to serve files to clients. After logging on to the server, attempts to shut it down gracefully fail (no error, it just fails to acknowledge a shutdown request). Recovery is a case of power cycling the server(s) from the Hyper-V console. These two servers don't server a large number of users (one serves no more than 6 users, and the other serves around 20 users), they are in the same domain, but on different physical hardware (and at different sites). They don't lock up at the same time. They both use DFSR to replicate a fairly large amount of data between themselves (200GB) over ADSL connections, this is working fine, and we have been using DFSR to do this on the previous two generations of server OS we have used (Server 2008 R2 and Server 2003 - both of which were physical installs however). Today, when one of the servers crashed, I noticed an entry in the event log, which looked similar to the following: Log Name: Application Source: ESENT Date: 27/11/2012 10:25:55 Event ID: 533 Task Category: General Level: Warning Keywords: Classic User: N/A Computer: HAL-FS-01.example.com Description: DFSRs (1500) \\.\E:\System Volume Information\DFSR\database_C8CC_101_CC00_EC0E\ dfsr.db: A request to write to the file "\\.\E:\System Volume Information\ DFSR\database_C8CC_101_CC00_EC0E\fsr.log" at offset 4423680 (0x0000000000438000) for 4096 (0x00001000) bytes has not completed for 36 second(s). This problem is likely due to faulty hardware. Please contact your hardware vendor for further assistance diagnosing the problem. When the server started up again, I went to find the event log entry to investigate further and found that the event log entry was no longer there (I assume it was in memory but failed to write to disk before the server was powered off, for the reason mentioned in the message). I found the above message by searching back further in the event log. Both of these virtual servers have their E: volumes fully allocated as opposed to dynamically expanding, and there are no other issues on any of the other virtual servers (which include server 2012, server 2008 R2 and Ubuntu 12.04 x64). There are no signs of IO, memory or CPU starvation on the host systems. I've used performance counters on the affected virtual servers to monitor memory usage (including non paged pool usage), as well as CPU and network utilisation, and none of these show any signs of trouble when the issue arises. I would have thought our configuration isn't that uncommon, so I'm wondering if anyone else has seen this, and managed to resolve the problem?

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• How to deny the web access to some files?

  - by Strae

  I need to do an operation a bit strange. First, i run on Debian, apache2 (which 'runs' as user www-data) So, I have simple text file with .txt ot .ini, or whatever extension, doesnt matter. These files are located in subfolders with a structure like this: www.example.com/folder1/car/foobar.txt www.example.com/folder1/cycle/foobar.txt www.example.com/folder1/fish/foobar.txt www.example.com/folder1/fruit/foobar.txt therefore, the file name always the same, ditto for the 'hierarchy', just change the name of the folder: /folder-name-static/folder-name-dinamyc/file-name-static.txt What I should do is (I think) relatively simple: I must be able to read that file by programs on the server (python, php for example), but if I try to retrieve the file contents by broswer (digiting the url www.example.com/folder1/car/foobar.txt, or via cUrl, etc..) I must get a forbidden error, or whatever, but not access the file. It would also be nice that even accessing those files via FTP are 'hidden', or anyway couldnt be downloaded (at least that I use with the ftp root and user data) How can I do? I found this online, be put in the file .htaccess: <Files File.txt> Order allow, deny Deny from all </ Files> It seems to work, but only if the file is in the web root (www.example.com / myfile.txt), and not in subfolders. Moreover, the folders in the second level (www.example.com/folder1/fruit/foobar.txt) will be dinamycally created.. I would like to avoid having to change .htaccess file from time to time. It is possible to create a rule, something like that, that goes for all files with given name, which is on www.example.com/folder-name-static/folder-name-dinamyc/file-name-static.txt, where those parts are allways the same, just that one change ? EDIT: As Dave Drager said, i could semplify this keeping those file outside the web accessible directory. But those directory's will contain others files too, images, and stuff used by my users, so i'm simply try to not have a duplicate folders system, like: /var/www/vhosts/example.com/httpdocs/folder1/car/[other folders and files here] /var/www/vhosts/example.com/httpdocs/folder1/cycle/[other folders and files here] /var/www/vhosts/example.com/httpdocs/folder1/fish/[other folders and files here] //and, then for the 'secrets' files: /folder1/data/car/foobar.txt /folder1/data/cycle/foobar.txt /folder1/data/fish/foobar.txt

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• Which Apache modules are safe to disable?

  - by Gaia

  Each Apache process is using about 70MB of private/rss memory, so I would like to lean them up a bit. The server runs Magento and Wordpress only. PHP is run as fcgid. Which modules would you consider safe to disable? Loaded Modules: core_module (static) mpm_prefork_module (static) http_module (static) so_module (static) auth_basic_module (shared) auth_digest_module (shared) authn_file_module (shared) authn_alias_module (shared) authn_anon_module (shared) authn_dbm_module (shared) authn_default_module (shared) authz_host_module (shared) authz_user_module (shared) authz_owner_module (shared) authz_groupfile_module (shared) authz_dbm_module (shared) authz_default_module (shared) ldap_module (shared) authnz_ldap_module (shared) include_module (shared) log_config_module (shared) logio_module (shared) env_module (shared) ext_filter_module (shared) mime_magic_module (shared) expires_module (shared) deflate_module (shared) headers_module (shared) usertrack_module (shared) setenvif_module (shared) mime_module (shared) dav_module (shared) status_module (shared) autoindex_module (shared) info_module (shared) dav_fs_module (shared) vhost_alias_module (shared) negotiation_module (shared) dir_module (shared) actions_module (shared) speling_module (shared) userdir_module (shared) alias_module (shared) substitute_module (shared) rewrite_module (shared) proxy_module (shared) proxy_balancer_module (shared) proxy_ftp_module (shared) proxy_http_module (shared) proxy_ajp_module (shared) proxy_connect_module (shared) cache_module (shared) suexec_module (shared) disk_cache_module (shared) cgi_module (shared) version_module (shared) sed_module (shared) security2_module (shared) unique_id_module (shared) fcgid_module (shared) evasive20_module (shared) perl_module (shared) php5_module (shared) ssl_module (shared) dav_svn_module (shared) authz_svn_module (shared)

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• I get Get-WmiObject : Generic Failure error on an XP Machine. What needs to be done to get rid of this?

  - by steeluser

  I am trying make an uninstall app which removes an application X on a regular basis. The starting point to access applications installed in a Windows machine is through retrieving them from a WMI Class called Win32_Product. But when I run the basic command like this, I get the below error. I have searched technet and SO, but either their workarounds did not work for me or were too technical in detail which did not make sense to me. Please help. SO Link ps$ Get-WmiObject -class win32_product IdentifyingNumber : {09959E11-AD5D-408E-96AF-E3346954D6B8} Name : Shared Add-in Extensibility Update for Microsoft .NET Framework 2.0 (KB908002) Vendor : Microsoft Version : 1.0.0 Caption : Shared Add-in Extensibility Update for Microsoft .NET Framework 2.0 (KB908002) Get-WmiObject : Generic failure At line:1 char:14 + Get-WmiObject <<<< -class win32_product + CategoryInfo : InvalidOperation: (:) [Get-WmiObject], ManagementException + FullyQualifiedErrorId : GetWMIManagementException,Microsoft.PowerShell.Commands.GetWmiObjectCommand

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• Cannot push to GitHub from Amazon EC2 Linux instance

  - by Eli

  Having the worst luck push files to a repo from EC2 to GitHub. I have my ssh key setup and added to Github. Here are the results of ssh -v [email protected] OpenSSH_5.3p1, OpenSSL 1.0.0g-fips 18 Jan 2012 debug1: Reading configuration data /etc/ssh/ssh_config debug1: Applying options for * debug1: Connecting to github.com [207.97.227.239] port 22. debug1: Connection established. debug1: permanently_set_uid: 0/0 debug1: identity file /root/.ssh/identity type -1 debug1: identity file /root/.ssh/id_rsa type 1 debug1: identity file /root/.ssh/id_dsa type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.1p1 Debian-5github2 debug1: match: OpenSSH_5.1p1 Debian-5github2 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.3 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client aes128-ctr hmac-md5 none debug1: kex: client->server aes128-ctr hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug1: Host 'github.com' is known and matches the RSA host key. debug1: Found key in /root/.ssh/known_hosts:1 debug1: ssh_rsa_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey debug1: Next authentication method: publickey debug1: Trying private key: /root/.ssh/identity debug1: Offering public key: /root/.ssh/id_rsa debug1: Remote: Forced command: gerve eliperelman 81:5f:8a:b2:42:6d:4e:8c:2d:ba:9a:8a:2b:9e:1a:90 debug1: Remote: Port forwarding disabled. debug1: Remote: X11 forwarding disabled. debug1: Remote: Agent forwarding disabled. debug1: Remote: Pty allocation disabled. debug1: Server accepts key: pkalg ssh-rsa blen 277 debug1: Trying private key: /root/.ssh/id_dsa debug1: No more authentication methods to try. Permission denied (publickey).

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

  - by Heath Borders

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

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• Irc server for ubuntu

  - by Ralphz

  The Ubuntu WIKI https://help.ubuntu.com/community/IrcServer it lists few IRC servers you can use in Ubuntu. My question is which one is you favorite one and more secure. I will also need one that will allow me to monitor rooms for regular expressions and run some scripts if regexp matches. Thanks

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• MYSQL backup and restore

  - by Codezy

  I am having trouble getting mysql backups to run properly when their are views in the database. I think this might have something to do with needing a placeholder object for it. In any event I run this command: mysqldump -u myuser -pmypassword mydatabase | mysql -u myuser -pmypassword -C mydatabase_Beta The user has full privileges and I get this: View mydatabase_beta.yadayada references invalid tables or columns or functions or definer/invoker or view lack rights to use them. How can I back it up so that it restores all of my database properly? In the example I am restoring it to a different name but I do need to be able to restore a working copy. I think it is probably an additional mysqldump parameter or maybe hot copy would work better. Thoughts?

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• How do I setup an FTP server on Windows 7?

  - by Matt Frear

  I'm having trouble getting an FTP server setup on Windows 7. I've added the service using Control Panel - Programs - Turn Windows features on and off. I can see the service has started in Control Panel - Services. But then when I fire up a Windows command-line window, cmd, I get Not connected., C:\Users\mattf>ftp localhost ftp> ls Not connected. ftp> open localhost ftp> ls Not connected. ftp> dir Not connected. ftp> quit C:\Users\mattf> And that's as far as I've got. I have no idea why this isn't working - could it be firewall settings?

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• Logic behind SCCM 2012 required PXE deployments

  - by Omnomnomnom

  I'm in the process of setting up Windows 7 deployment through PXE boot, with Microsoft SCCM 2012. The imaging itself works very well, but I have a question about the logic behind PXE deployments. My setup is the following: My Windows 7 deployment task sequence is deployed to the unknown computers group. (not required, press F12 to start installing) OSDComputerName variable is also set on the unknown computers group, so unknown computers that are being imaged will prompt for a pc name. The computer then becomes known in SCCM and is added to the correct collection(s). But if I want to reïnstall windows on a known computer things are different: I can do a required deployment of the imaging task sequence to the collection of computers. Then windows installs through PXE, without any human interaction, keeping the original computer name. But because the initial deployment was not required, the "required PXE deployment" flag is not set. So as soon as I add a new computer to a collection with a required PXE deployment, it will start to reïnstall windows again. I can also deploy the imaging task sequence to the new unknown computers as required, so the flag gets set initially. But then it does not prompt for a computer name. (and it generates a name like MININT-xxx) Which is also sort of what I want. Because when i want to re-install a machine, I want it to install without interaction. How can I solve this?

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• Short POST data in HTTP

  - by Matt

  We're hosting a customer's Debian Linux web server. It's running a PHP based web application. The server is sitting behind our firewall with it's own virtual interface and port 80 is forwarded internally to a machine sitting in the DMZ. The issue we're having is that when data is posted to the server it seems to be being cut short for some users. It's reproducable for some users on the same box. But the same user sending the same data on the same lan on another PC it works. The data gets cut to around 1140 bytes I'm told. Any idea why this might be happening? The customer is blaming our firewall, but then surely we'd have issues with other services. I'm suspecting it's a problem with the website itself. Suggestions on how to isolate the problem would be of help. Our firewall is Astaro. EDIT: A customer has set the ethernet frame size temporarily to 500bytes on the server. This made it work for now! I know some of the customers are using an internet provider that runs PPPoE

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• How to make sure my GPO are applied in the correct order

  - by Florent

  I'm deploying VMware player through a GPO, and I'd like to apply specific ACLs to the install folder, and to the D:\VMWARE folder I'm creating during the player install. I also have to add the vmware user account the "can log on locally" right. To do so, I've created a GPO whose scope is the same as my Vmware player install GPO. This GPO works well, BUT when applied at the same time as my deployment GPO, it seems to be applied before the deploy GPO, and then : - Cannot find the vmware user account - Cannot find the c:\program files\vmware folder - Cannot find the D:\vmware folder because none of them have already been created by the vmware player install. And the only way for me to apply my security GPO is to execute gpudate /force command manually, which i don't want to use (it's supposed to be an automatic install) I've checked the gpo processing order, my security GPO should be applied AFTER my install GPO (security GPO is number 1, deploy GPO is number to), but it don't seem to be the case. Does anyone got an idea to solve this ?

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• ulimit for windows

  - by thelay

  Hi Are there true ulimit for windows? I'm finding ways/programs how to prevent one program eating 100% cpu. Thanks.

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• Need to setup an office network, suggest some hardware?

  - by Yegor

  We have 6 windows workstations, spread out over a fairly large area. Need to share a DSL connection (upgrading to 100/100 mbit fiber in a few months) with these machines over a 1gbit network. Also need Wifi to be available for laptop use. Plan to add 2 rackmount servers for internal use as well. Can someone suggest a decent (preferably low cost) setup that will let me achieve the stuff mentioned above.

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• PHP not loading php.ini in directory or following error_reporting() on Windows 7

  - by Marcus

  Normally I develop under E_ALL error level, but for sanity on this project I want notices and strict off. So initially tried: error_reporting(E_ALL & ~(E_STRICT|E_NOTICE)); And several other combinations of the same thing, nothing worked. Next I tried to create a local php.ini the directory with error_reporting = E_ALL & ~E_NOTICE but nope, that didn't work either. phpinfo() is reporting: Scan this dir for additional .ini files: (none) Can someone help me fix either of these problems? Preferably both! Thanks! I'm running PHP Version 5.2.13 on Apache/2.2.14 under Windows 7 x64.

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• Can connect to Samba server but cannot access shares?

  - by jlego

  I have setup a stand-alone box running Fedora 16 to use as a file-sharing and web development server. Needs to be able to share files with a PC running Windows 7 and a Mac running OSX Snow Leopard. I've setup Samba using the Samba configuration GUI tool. Added users to Fedora and connected them as Samba users (which are the same as the Windows and Mac usernames and passwords). The workgroup name is the same as the Windows workgroup. Authentication is set to User. I've allowed Samba and Samba client through the firewall and set the ethernet to a trusted port in the firewall. Both the Windows and Mac machines can connect to the server and view the shares, however when trying to access the shares, Windows throws error 0x80070035 " Windows cannot access \SERVERNAME\ShareName." Windows user is not prompted for a username or password when accessing the server (found under "Network Places"). This also happens when connecting with the IP rather than the server name. The Mac can also connect to the server and see the shares but when choosing a share gives the error "The original item for ShareName cannot be found." When connecting via IP, the Mac user is prompted for username and password, which when authenticated gives a list of shares, however when choosing a share to connect to, the error is displayed and the user cannot access the share. Since both machines are acting similarly when trying to access the shares, I assume it is an issue with how Samba is configured. smb.conf: [global] workgroup = workgroup server string = Server log file = /var/log/samba/log.%m max log size = 50 security = user load printers = yes cups options = raw printcap name = lpstat printing = cups [homes] comment = Home Directories browseable = no writable = yes [printers] comment = All Printers path = /var/spool/samba browseable = yes printable = yes [FileServ] comment = FileShare path = /media/FileServ read only = no browseable = yes valid users = user1, user2 [webdev] comment = Web development path = /var/www/html/webdev read only = no browseable = yes valid users = user1 How do I get samba sharing working? UPDATE: Before this box I had another box with the same version of fedora installed (16) and samba working for these same computers. I started up the old machine and copied the smb.conf file from the old machine to the new one (editing the share definitions for the new shares of course) and I still get the same errors on both client machines. The only difference in environment is the hardware and the router. On the old machine the router received a dynamic public IP and assigned dynamic private IPs to each device on the network while the new machine is connected to a router that has a static public IP (still dynamic internal IPs though.) Could either one of these be affecting Samba? UPDATE 2: As the directory I am trying to share is actually an entire internal disk, I have tried to things: 1.) changing the owner of the mounted disk from root to my user (which is the same username as on the Windows machine) 2.) made a share that only included one of the folders on the disk instead of the entire disk with my user again as the owner. Both tests failed giving me the same errors regarding the network address. UPDATE 3: Not sure exactly what I did, but now whenever I try to connect to the share on the Windows 7 client I am prompted for my username and password. When I enter the correct credentials I get an access denied message. However I did notice that under the login box "domain: WINDOWS-PC-NAME" is listed. I believe this could very well be the problem. Any suggestions? UPDATE 4: So I've completely reinstalled Fedora and Samba now. I've created a share on the first harddrive (one fedora is installed on) and I can access that fine from Windows. However when I try to share any data on the second disk, I am receiving the same error. This I believe is the problem. I think I need to change some things in fstab or fdisk or something. UPDATE 5: So in fstab I mapped the drive to automount in a folder which works correctly. I also added the samba_share_t SElinux label to the mountpoint directory which now allows me to access the shares on the Windows machine, however I cannot see any of the files in the directory on the windows machine. (They are there, I can see them in the fedora file browser locally) UPDATE 6: Figured it out. See answer below

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• Why did my Cisco router hang?

  - by Mike Pennington

  We have a Cisco 1841 in our storage IDF that was originally running a 12.4(1) IP-BASE image; I wanted to upgrade to an advancedservicesk9-mz image, but the flash did not have enough space, so I deleted the running image. Later I tried inserting a larger CF from a Catalyst4500, which crashed the 1841 router (now without a bootable image). Using another 1800 series router, I loaded the 12.4(25g) advancedservicesk9 image and verified the image checksums. I set the confreg to 0x2102 from rommon and booted the new image; however the 1841 now hangs indefinitely after printing the IOS export control banner. I have tried four other images, all with the same results. What is wrong with this router? UPDATE 1: I tried loading images from a FAT16-formatted USB, but this didn't work either. I also tried tftpdnld from rommon, but got a get_mac_address(): Search T_IDPROM_MACADDR (0xc3) failed Illegal MAC address. error and the file would not load.

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• Weird permission issue with POSIX ACLs, NFS v3 on Linux

  - by jon

  I have two Linux systems, both running Debian Squeeze. Versions of (I think) the stuff involved are: kernel: 2.6.32-5-xen-amd64 ii nfs-kernel-server 1:1.2.2-4squeeze2 support for NFS kernel server ii libnfsidmap2 0.23-2 An nfs idmapping library ii nfs-common 1:1.2.2-4squeeze2 NFS support files common to client and server ii portmap 6.0.0-2 RPC port mapper (The client doesn't have nfs-kernel-server involved.) I have a directory with ACLs: # file: dirname # owner: jon # group: foogroup # flags: -s- user::rwx user:www-data:rwx group::r-x group:foogroup:rwx mask::rwx other::r-x default:... There are two users, neither one of which owns the directory: uid=3001(jake) gid=3001(jake) groups=3001(jake),104(wheel),3999(foogroup) uid=3005(nic) gid=3005(nic) groups=3005(nic),3999(foogroup) The jake user can create files in the directory without issues. The nic user can't. All UIDs/GIDs are the same on the client and server. I've verified (packet sniffing) that the right uids/gids get sent via AUTH_UNIX are correct-- uid=gid=3005, auxiliary gids=3005,3999-- and that the server replies with NFS3ERR_ACCESS, which the kernel on the client maps to EACCES (Permission denied). Can anyone help me here?

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• Ubuntu Postfix Gmail SMTP Relay Not Working

  - by Nick DeMayo

  I currently have postfix set up to relay messages from my websites through gmail, and up until recently it was working perfectly. However, within the last week or so (not really sure when) I started getting the below error whenever attempting to send an email: Jul 20 07:40:46 localhost postfix/smtp[11958]: connect to smtp.gmail.com[2001:4860:800a::6c]:587: Network is unreachable Jul 20 07:40:46 localhost postfix/smtp[11958]: connect to smtp.gmail.com[173.194.76.109]:587: Connection refused Jul 20 07:40:46 localhost postfix/smtp[11958]: connect to smtp.gmail.com[173.194.76.108]:587: Connection refused Here is my configuration file: # See /usr/share/postfix/main.cf.dist for a commented, more complete version # Debian specific: Specifying a file name will cause the first # line of that file to be used as the name. The Debian default # is /etc/mailname. #myorigin = /etc/mailname smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings #delay_warning_time = 4h #readme_directory = no # TLS parameters smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key smtpd_use_tls=yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache # See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for # information on enabling SSL in the smtp client. myhostname = [my domain name] alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases #myorigin = /etc/mailname mydestination = [my host name], localhost.localdomain, localhost relayhost = [smtp.gmail.com]:587 mynetworks = 127.0.0.0/8 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = loopback-only inet_protocols = all ########################################## ##### non debconf entries start here ##### ##### client TLS parameters ##### smtp_tls_loglevel=1 smtp_tls_security_level=encrypt smtp_sasl_auth_enable=yes smtp_sasl_password_maps=hash:/etc/postfix/sasl/passwd smtp_sasl_security_options = noanonymous ##### map username@localhost to [email protected] ##### smtp_generic_maps=hash:/etc/postfix/generic Nothing changed on my server, as far as I know...any ideas what could have caused it to stop working?

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• iSCSI, failover and XenServer

  - by jemmille

  I have an iSCSI fail over implementation setup so if one of my storage units fails the other takes over immediately (it also runs the NFS shares). When fail over occurs, volumes are exported, the IP is switched to the other machine and the targets are reconfigured. The fail over of the storage system itself works just fine. I use NexentaStor for my filer. When I do a test (manual) fail over of my storage the following occurs: Note: I run the admin VM's on NFS and customer based VM's on iSCSI All NFS based VM's remain up and working perfectly through the failover and after All VM 's running on iSCSI eventually report the following: An error about not being able to write to a particular block An error about journaling not working Then the file system goes RO To get the VM's working again I have to do the following: Force shutdown of the "broken" VM's. Detach the iSCSI SR Re-attach the iSCSI SR Boot the VM on a different server (5 in my pool) If I don't boot on a different server I get this error "Internal error: Failure("The VDI <uuid&gt; is already attached in RW mode; it can't be attached in RO mode!")" The only way I have found to fix that error is to reboot the entire server it was running on previously which is obviously a huge pain. Currently multipathing is NOT enabled (but can be and the same thing still occurs). I have edited much of the /etc/iscsid.conf file to work with the timeout settings but to no avail. In short, my storage fails over properly but XenServer does not keep the connection alive. As a thought, the error that shows up in #4 above might be the ultimate cause and fixing that would fix everything? Any help would be appreciated more than you know.

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• How to restrict Apache Location directive to cetain sub-domain?

  - by ohho

  On our server www.example.com, we use the <Location> directive to proxy traffic to a back-end server: <Location /app1> ProxyPass http://192.168.1.20 </Location> Then we added a sub-domain uat.example.com which points to the same IP address of www.example.com. We want to use it as a proxy for client to test an app being developed. Hopefully, the client can access via: http:/uat.example.com/app2_uat Now if we add a Location: <Location /app2_uat> ProxyPass http://192.168.1.30 </Location> The client can access both: http:/www.example.com/app2_uat http:/uat.example.com/app2_uat How can I restrict Location such that only: http:/uat.example.com/app2_uat is accessible? (i.e. http:/www.example.com/app2_uat should not be accessible.)

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• Redirect example.com to www.example.com VPS & Apache2

  - by Thomas Buckley

  I have a VPS and a domain name registered with the provider. When I enter www.example.com my site is displayed correctly, but entering example.com does not work. I am able to ping www.example.com. I added the following line to my apache2 default vhosts file: ServerName example.com ServerAlias www.example.com But this did not work. The VPS is a Debian5 OS. Any ideas? Note: There is no option via a provided control panel to add this, it's a basic package I purchased I know this post answers it but there are no extra comments and I'd like to know if it's the best way: way to redirect page to www using virtual host configuration in sites-available for apache2? Thanks

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• How to Protect Sensitive (HIPAA) SQL Server Standard Data and Log Files

  - by Quesi

  I am dealing with electronic personal health information (ePHI or PHI) and HIPAA regulations require that only authorized users can access ePHI. Column-level encryption may be of value for some of the data, but I need the ability to do like searches on some of the PHI fields such as name. Transparent Data Encryption (TDE) is a feature of SQL Server 2008 for encrypting database and log files. As I understand it this prevents someone who gains access to the MDF, LDF, or backup files from being able to do anything with the files because they are encrypted. TDE is only on enterprise and developer versions of SQL Server and enterprise is cost-prohibitive for my particular scenario. How can I get similar protection on SQL Server Standard? Is there a way to encrypt the database and backup files (is there a third-party tool)? Or just as good, is there a way to prevent the files from being used if the disk were attached to another machine (linux or windows)? Administrator access to the files from the same machine is fine, but I just want to prevent any issues if the disk were removed and hooked up to another machine. What are some of the solutions for this that are out there?

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