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• Apache and mod_authn_dbd DBDPrepareSQL error

  - by David Brown

  I am running Apache 2.2.17 on Suse Linux 11. I have installed the mod_authn_dbd module to allow authentication using a MySQL database. Simple digest authentication works absolutely fine using the following directive: AuthDBDUserRealmQuery "SELECT loginPassword FROM login WHERE loginUser = %s and loginRealm = %s" However, I would like to both generalize this statement and prepare it for performance and security reasons. Thus, I used the following directives instead: DBDPrepareSQL "SELECT loginPassword FROM login WHERE loginUser = %s and loginRealm = %s" digestLogin AuthDBDUserRealmQuery digestLogin These directives generate the following errors: [...] [error] (20014)Internal error: DBD: failed to prepare SQL statements: [...] [error] (20014)Internal error: DBD: failed to initialise Why does my actual SQL statement work when used directly, but not when I try to prepare it? (Note I have tried using '?' and '%%' in place of '%', to no effect.)

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• software package disappeared in GPO after access rights change

  - by sirka

  Hi, in GPO, this item Computer > Software settings > Assigned applications > IE8_package was on Security tab set "Authenticated users" to "Deny". After that it disappeared from GPO, it is there, but nowhere shown. The intention was to disable installation of that package for now, yet having other packages in that GPO still installed. I know it was stupid decision now. Is there any way to display that package back? Please help.

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• Snort: not logging anything

  - by ethrbunny

  My site seems to be the target of quite a bit of probing over the last few months. In an attempt to get a better handle on this I installed SNORT on one of the machines that has external exposure. Something must not be installed correctly as I see lots of probing in /var/log/messages but snort isn't logging anything. System: CentOS 6.2 (32 bit) Snort: (latest build and rules) Snort configured from this v excellent site: http://nachum234.no-ip.org/security/snort/001-snort-installation-on-centos-6-2/ snort running as daemon: /usr/local/bin/snort -d -D -i bond0 -u snort -g snort -c /etc/snort.d/snort.conf -l /var/log/snort The snort.log file is empty despite hundreds (or more) failed login attempts from individual IP addresses. Maybe Im missing the purpose of SNORT? I was hoping it would log this sort of info.

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• LSI RAID-on-chip with RAID6 over two SAS links goes red when HDD enclosure is powered cycled; how to recover?

  - by GregC

  I have a RAID6 array managed by LSI 9286-8e card. I also have Sans Digital 24-bay NexentaSTOR JBOD enclosure with SAS extender built-in. They are connected to separate UPS devices. Normally, I'd shut down the PC, leaving RAID6 in healthy state. But today the power to JBOD enclosure was cut but PC kept running. After restarting the PC, all disks in RAID6 have lit up RED, and the only option in LSI MegaRAID manager app was to reset each disk to unassigned, thereby loosing all data on RAID6 array. Thankfully, I am only testing, but how would I recover if this were to happen in production?

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• Dynamic DNS registration for VPN clients

  - by Eric Falsken

  I've got a VPN server set up in my Active Directory on a remote network. (VPN Server is separate box from DNS/AD) When I dial into the network (client machine is not a member of the AD) the machine does not register its IP or Hostname in the DNS. I've played with all possible combinations of DHCP and RRAS-allocated IP pools, and none of them seem to cause my client to register. Is it because my client has to be a member of the domain? Are there some security settins I can tweak so that it can register its hostname/ip? I've looked in the event logs (System and Security) for the AD, DNS, DHCP, RRAS, and the client machine, and don't see anything relating to DNS Registration. Here's the IPConfig on the client machine (once connected): PPP adapter My VPN Name: Connection-specific DNS Suffix . : mydomain.local Description . . . . . . . . . . . : My VPN Name Physical Address. . . . . . . . . : DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes IPv4 Address. . . . . . . . . . . : 192.168.1.22(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.255 Default Gateway . . . . . . . . . : DNS Servers . . . . . . . . . . . : 192.168.1.52 <- DC1 192.168.1.53 <- DC2 NetBIOS over Tcpip. . . . . . . . : Enabled Edit: It looks like my clients are not recieving the DHCP Scoope Options. I found this great article in Microsoft's KB. So the problem here is that the VPN Server "pre-reserves" the DHCP addresses, but then you have to add the DHCP Relay Agent to relay the secondary request for scope options. My problem is that the DHCP Relay Agent isn't relaying to the local DHCP server (same box as the VPN/RRAS). I've configured the DHCP Relay Agent according to this KB, but it dosn't work for a local DHCP server. (I see the request count increasing, but no responses) I was able to get everything working by specifying the DNS server and domain name in the VPN connection properties on the client. But am still unable to assign it (or the default gateway) dynamically via DHCP. The client also has to be a member of the remote domain.

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• Fresh Red Hat Enterprise Linux fails to install httpd using yum

  - by Julian

  I'm trying to install a LAMP stack in a fresh red hat server but yum is misbehaving. Being linux illiterate I'm at a loss. $yum install httpd Loaded plugins: security Setting up Install Process No package httpd available. Nothing to do My yum config $ cat /etc/yum.conf [main] cachedir=/var/cache/yum keepcache=0 debuglevel=2 logfile=/var/log/yum.log distroverpkg=redhat-release tolerant=1 exactarch=1 obsoletes=1 gpgcheck=1 plugins=1 # Note: yum-RHN-plugin doesn't honor this. metadata_expire=1h # Default. # installonly_limit = 3 # PUT YOUR REPOS HERE OR IN separate files named file.repo # in /etc/yum.repos.d Other stuff in the yum.repos.d dir $ ls -lah /etc/yum.repos.d/ total 12K drwxr-xr-x 2 root root 4.0K Feb 4 01:15 . drwxr-xr-x 59 root root 4.0K Feb 4 01:28 .. -rw-r--r-- 1 root root 561 Mar 10 2010 rhel-debuginfo.repo What could be going on? I thought "out of the box" RHEL5.5 would be friendlier :)

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• Problems with mailenable when sending to yahoo mail

  - by Mee

  I'm testing sending emails from mailenable webmail. I have no problems sending mail to gmail or hotmail, both work fine, but yahoo mail sends my messages to the spam folder and shows the attachment icon for the message even though the message doesn't contain any attachments, it's just plain text. It only includes a reply to a previous message, like this: message text ----- Original Message ----- original message text I copied the message content and sent it from gmail to yahoo and the attachment icon didn't show which makes me believe it's something with mailenable. What could possibly be wrong? Also, is there a white list for yahoo mail that I can join? And also for other popular webmail? I'm going to use this on a production website (site visitors use the contact us form to send messages to the site - the mail enable server running on the same machine as the web server - then I check the messages using the mailenable webmail and reply them). This is really important to me, your help would be really appreciated ...

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• Project Server 2007 Task Updates hangs on 'Loading Grid...'

  - by Greg Buehler

  A strange problem began occurring after applying MOSS2 (KB953334) and the August 2009 cumulative update to our Project server. When a user enters the 'Task Update' screen they are prompted to download a new ActiveX control. Upon refresh, and subsequent access attempts, the user is presented with a blank grid with the caption 'Loading Grid...' We have attempted to fix this issue by updating the 'Trusted Sites' list and changing the security settings according to KB818046. However, nothing seems to definitely fix the problem. Also, when the problem randomly fixes itself, it still occurs when viewing specific projects. Any ideas on a fix?

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• Unable to authenticate Windows XP clients agains Snow Leopard Server PDC after 10.6.2 upgrade

  - by Roland

  I have setup a Snow Leopard Server 10.6.1 as a PDC without problems to authenticate Windows XP clients. Joining a Windows XP client to the SLS PDC Domain and log in from a Windows XP client to the SLS PDC Domain are working. After the update to Snow Leopard Server 10.6.2 the authentication is broken. opendirectory_smb_pwd_check_ntlmv1 gave -14090 [eDSAuthFailed] By changing the Windows XP "Network security: LAN Manager authentication level" policy to NTVLM2 responses only the authentication agains a SMB share is possible, but trying to join SLS PDC Domain is still not possible. opendirectory_smb_pwd_check_ntlmv2 gave -14090 [eDSAuthFailed] Any ideas? Is anyone else having similar authentication difficulties?

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• Problems with kickstart script, partition info crashes deployment

  - by tore-

  Hi, Currently testing cobbler, but have problem with the kickstart script when the partition information is loaded. Here is my ks: http://pastebin.ca/1824343 I can't figure out what is the problem with the partsection at all. Without it, it works. I've even tried autopart. If the entry is removed, it works, but of course I have to provide the installer with partition information. Under the kickstart an python exception is raised. I get a Errno 2 No such file or directory. My Apache logs states: File does not exist: /var/www/cobbler/links/CentOS-5.3-x86_64/images/updates.img File does not exist: /var/www/cobbler/links/CentOS-5.3-x86_64/disc1 File does not exist: /var/www/cobbler/links/CentOS-5.3-x86_64/images/product.img But without the part information, no error occours. What am I not seeing? Cobbler 2.0.3, imported the CentOS 5.3 x86_64 DVD, PXE booting from a Xen guest.

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• rpm installation error

  - by JiminyCricket

  im trying to install an RPM compat-db-4.1.25-9 on oracle linux enterprise, since its required to install WebCenter...however the rpm installation is throwing a warning and then not working [root@devsebl downloads]# rpm -i compat-db-4.1.25-9.rpm warning: compat-db-4.1.25-9.rpm: Header V3 DSA signature: NOKEY, key ID 9b3c94f4 [root@devsebl downloads]# rpm -q compat-db-4.1.25-9.rpm package compat-db-4.1.25-9.rpm is not installed any idea what that warning means and why its crashing there? i tried to use Yum, but its not available i guess: [root@devsebl downloads]# yum search compat-db Loaded plugins: security Warning: No matches found for: compat-db No Matches found

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• Using watch to run a shell script - but the script goes defunct

  - by PHP-Steven

  So I want to keep an eye on my network connectivity so I can make a report for my ISP. (seems like the modem goes out for about 30-60 seconds about once a day) So I copied this handy little script http://www.cyberciti.biz/tips/simple-linux-and-unix-system-monitoring-with-ping-command-and-scripts.html And an running it with watch -n 15 ./ping-test.sh I have been testing it by pulling the plug on my modem. The first time watch runs the script after the network goes out it runs fine (sends some email) and then goes defunct. Once networking is restored the script "finishes" and then watch runs it again. So I'm getting mail for when the network goes down, but not how long it was down for. If I run the script straight from the command line it runs (emails) and then exits. Any ideas why? How can I get the script to keep running once the network is down?

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• How to hide distribution group from "All Groups" Address Book in Outlook 2010?

  - by cparker4486

  I'm working with Outlook 2010 and Exchange 2010 and while writing this post I found another post on the topic but it was for Exchange 2007. It mentioned Address List Segregation which, as it turns out, is not supported in Exchange 2010. So it seems another method is required. I've successfully hidden a distribution group from the GAL by removing the Authenticated Users group but the group is still visible in the Address Book called "All Groups". I would expect it to be hidden in all address books not just the GAL. Are there any other security groups I should remove to hide it from All Groups? To give visibility in the GAL I am manually adding the user (the group is being used for Send As purposes). In the image below the green line represents where the group is visible and the red line indicates the opposite.

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• Smart card / auditable access for rack KVM tray

  - by Mark Henderson

  Is there such a thing as a KVM Tray for a standard 19" rack whose use can be validated by a smartcard (or some other auditable authentication method)? It looks like we have a security requirement where just because users have a key to the rack doesn't mean they will be allowed to use the console inside the rack, and rather than just lock the console (and keep track of who has keys), we would prefer to be able to audit the actual user that was attached at the KVM. (It's worth mentioning that I'm aware of the Raritan devices, but they surely can't be the only ones) (If these things existed, I don't think half of the tratoirs that somehow manage to infiltrate CTU on the TV show 24 would ever get away with anything)

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• Windows XP IIS5 performance across Network

  - by davidsleeps

  Hi, Just wondering whether Windows XP with IIS5 running needs any extra configuration to be suitable as a web server...I'm not considering using this for anything other than a web server on a small network for testing development etc One of the reasons I'm concerned though is that we've deployed an asp.net application to a workstation with Windows XP, and running the application using a browser on the machine (so accessing it through localhost/myApp/page.aspx and not accessing it through the network) runs the application really quickly. If another machine on the LAN accesses the same page (using http://ComputerName/myApp/page.apx) then the whole application runs noticeably slower...yet the computers are connected on a gigabit switch...so I wouldn't have thought network latency or bandwidth could be an issue... Does Windows XP need anything etc enabled or changed or network settings for it to work correctly?

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• Remove CGI from IIS7

  - by jekcom

  I ran some security scan and the scan said that all kind of CGI stuff are potential thread. This is part of the result : (ash) is present in the cgi-bin directory (bash) is present in the cgi-bin directory By exploiting this vulnerability, a malicious user may be able to execute arbitrary commands on a remote system. In some cases, the hacker may be able to gain root level access to the system, in which case the hacker might be able to cause copious damage to the system, or use the system as a jumping off point to target other systems on the network for intrusion and/or denial of service attacks. and many more related to cgi-bin directory. First I searched all the server for cgi-bin folder and it did not find any. Second I'm running my website on pure .NET and I don't use any scripts like php. Question is how can I remove this CGI thing from the IIS?

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• Citrix XenServer iSCSI shared disk?

  - by chsguy

  I am running Citrix XenServer Essentials 5.5, with VMs stored on an EqualLogic iSCSI shelf, using XenServer's StorageLink. I would like to create a "virtual disk" that can be attached to multiple VMs. This would be used for a cluster file system like OCFS2 or GFS. This doesn't seem possible using the XenCenter GUI and I can't find anything online about how to do it. I realize I could simply expose the iSCSI network to the VM and have the VM initiate its own iSCSI, but that creates a lot of security challenges. This was pretty easy to do on Oracle VM Server, which is Xen based, so I know it's not a limitation of Xen itself. Maybe there is an "xe-" command for this? Thanks for any suggestions you can provide.

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• Iomega Home Media Network Hard Drive: Accesing the data in the disk?

  - by JJarava

  Hi all! I have an Iomega Home Media Network Hard Drive, 1TB, and lately I can't access the data on the drive. The shares (both built-in and created by me) are there, the security works, but when trying to access the data I get a "The network path was not found" message which is worrying, to say the least. I'd like to know if there is a way to get the data off the disks somehow, as some of the data in the drive (ie, pictures and videos of my 1.5 yrs old son) is hard if not impossible to find otherwise. Thanks a lot Javier

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• Configuring and managing Windows web server

  - by Mike C.

  Hello, I run a few websites and I was thinking of paying for a dedicated Windows web server from GoDaddy instead of paying for each site's hosting individually. I know enough about IIS to configure the Host Header and stuff like that, but I'm a little fuzzy about the email portion of the hosting. I have a few questions: Do I need to install an SMTP server on the web server to allow for emails to be sent/received to a website email address? Or is there another approach that I'm unaware of? Are there tools that monitor the amount of bandwidth used by the server? GoDaddy charges for bandwidth and I want to make sure I don't go over. Am I opening a can of worms that I don't really want to open by going the dedicated server route? Things like server updates, security, etc? Thanks!

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• How is the "change password at next logon" requirement supposed to work with RDP using Network Level Authentication?

  - by NReilingh

  We have a Windows server (2008 R2) with the "Remote Desktop Services" feature installed and no Active Directory domain. Remote desktop is set up to "Allow connections only from computers running Remote Desktop with Network Level Authentication (more secure)". This means that before the remote screen is displayed, the connection is authenticated in a "Windows Security: Enter your credentials" window. The only two role services installed on this server is the RD Session Host and Licensing. When the "User must change password at next logon" checkbox is selected in the properties for a local user on this server, the following displays on a client computer after attempting to connect using the credentials that were last valid: On some other servers using RDP for admin access (but without the Remote Desktop Services role installed), the behavior is different -- the session begins and the user is given a change password prompt on the remote screen. What do I need to do to replicate this behavior on the Remote Desktop Services server?

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• Stop Cisco AnyConnect from locking down the NIC

  - by Johannes Rössel

  Cisco's VPN crapclients (including the AnyConnect one) have the nasty habit of clobbering all NICs on the system you're using them. The old client had a checkbox in the connection options that allowed you to use other network interfaces while being connected while the AnyConnect client doesn't have any options at all, seemingly. But they both lock down the network interface they are using to connect to the VPN. Since I am forced to use AnyConnect to actually have an internet connection and I like to control a second computer at home via RDP (over the same network interface so far) this doesn't quite work out. With the old client IPv6 still worked just fine, though AnyConnect seems to dislike that as well now. Is there any way to still use the same network interface for LAN access? I actually don't really care about any possible security implications (which might be why Cisco does this) as it's my freaking internet connection and not a secure way of working from home. The trade-off is quite different :-)

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• Is it possible to a VM inside a VM (e.g., KVM on Vmware)?

  - by lorin

  I'd like to do some development on Eucalyptus, an open source project which provides an Amazon EC2 interface for launching virtual machine instances on a collection of privately managed nodes. I'd really like to be able to do some of the development on my desktop, rather than having to deploy Eucalyptus on our shared local cluster each time I make a change to the source code. (Especially since there are a group of us sharing that test cluster). Unfortunately, my desktop machine is a Mac, which won't run Eucalyptus natively. I do have VMWare Fusion, and it would be really nice if I could do my Eucalyptus testing inside a VMWare instance. The problem is, to test out Eucalyptus, it will have to launch (KVM or Xen) VM instances. I've got no idea if it's possible to actually launch a KVM or Xen instance inside a VMWare instance.

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• centos: nginx + thin webserver, incoming connections not allowed

  - by cbrulak

  I setup a fresh CentOS 5 install, compile nginx from scratch and am using thin as the rails server. If I visit the ip adress on the LAN: (for example) 1.2.3.4 I get the website not found error. However, I can ssh into the machine. If I use links to visit the ip address, I get the landing page. Any suggestions? Thanks EDIT I ran system-config-securitylevel and then was able to change the security settings to allow incoming connections.

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• How do I add a broadcast IP to the loopback interface under os/x using ifconfig when my machine has no network?

  - by bandodeotarios

  I'm new to advanced network administration and I would like to do some testing with UDP broadcasting, so I need a broadcast address on my loopback interface. The machine is offline, in other words, there is no network. How can I accomplish that through ifconfig without having to buy a switch as one user in the comments suggested. In Linux all i have to do is use 127.255.255.255 and broadcasts work fine without any network or any switch. If I have a network i can just use 255.255.255.255, obviously.

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• Which user account should be used for WSGIDaemonProcess?

  - by Nathan S

  I have some Django sites deployed using Apache2 and mod_wsgi. When configuring the WSGIDaemonProcess directive, most tutorials (including the official documentation) suggest running the WSGI process as the user in whose home directory the code resides. For example: WSGIScriptAlias / /home/joe/sites/example.com/mod_wsgi-handler.wsgi WSGIDaemonProcess example.com user=joe group=joe processes=2 threads=25 However, I wonder if it is really wise to run the wsgi daemon process as the same user (with its attendant privileges) which develops the code. Should I set up a service account whose only privilege is read-only access to the code in order to have better security? Or are my concerns overblown?

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