Greatest Hits

4
votes
4answers
17k views

Hyper-V Time Sync for VM Domain Controller

We have 2 physical hyper-V servers running 8 VMs between them, each physical server has a Domain controller on it running in a VM and all servers are 2008R2 The VM PDC is set to NTP and to sync with ...
6
votes
3answers
28k views

User in domain admin group cannot access directory the group has permission to access

I've run into a rather interesting issue when playing with one of my domain labs. There's a directory on a 2008 R2 fileserver that's being used for folder redirection for all users in the "Staff" OU. ...
1
vote
4answers
15k views

kinit & pam_sss: Cannot find KDC for requested realm while getting initial credentials

I have a very similar problem as described in this thread on CentOS 6.3 authenticating against a 2008R2 AD DC. Here is my krb5.conf, I know for a fact that XXXXXXX.LOCAL is the true domain name: ...
4
votes
3answers
18k views

Activating MS Office 2013 Standard via KMS running on the same server

Given: Microsoft Windows Server 2008 R2 Enterprise 64-bit, all the latest security updates applied. KMS service set up and running, all the recommended updates applied (to handle possible activation ...
8
votes
1answer
9k views

dhclient: What does “RTNETLINK answers: File exists” Mean?

I wanted to update the DHCP lease of an Amazon EC2 instance, so I executed the following command: user@host:~$ sudo dhclient Following that, the system's DHCP lease is updated successfully updated. ...
31
votes
8answers
12k views

Should I expose my Active Directory to the public Internet for remote users?

I have a client whose workforce is comprised entirely of remote employees using a mix of Apple and Windows 7 PCs/laptops. The users don't authenticate against a domain at the moment, but the ...
0
votes
3answers
9k views

Postfix: “Connection timed out” on all outbound email

I've been attempting to setup mailing lists with GNU Mailman but it's been a complete disaster with tons of road blocks. Postfix is able to receive email but not send it back out at all, I've peeked ...
5
votes
2answers
14k views

How to troubleshoot connectivity when curl gets an *empty response*

I want to know how to proceed in troubleshooting why a curl request to a webserver doesn't work. I'm not looking for help that would be dependent upon my environment, I just want to know how to ...
8
6
votes
3answers
48k views

Make windows 7 client compatible with windows 2003 server

I am sysadmin for a small business with 30 clients. We have a server running windows 2003 and all the client-computers run windows XP. Now this is not an important issue, but it would be nice if it ...
4
votes
2answers
23k views

Why is Windows Update suddenly failing with error 0x80244019?

Since installing updates yesterday, one of our 2008 R2 servers refuses to connect to our WSUS again and, instead, reports the unknown error 0x80244019. Connecting to the official Windows Update ...
7
votes
4answers
9k views

Inaccessible_boot_device after installing KB2919355 on Server 2012R2

I have a server 2012r2 machine that I just installed KB2919355 (the mega 800+MB patch recently released for Windows 8.1 and Server 2012). Server is a Dell Poweredge R715. Disks are 2x500GB SAS in ...
8
votes
2answers
3k views

Strange Bittorrent Log On My Server

I don't know if the following log has something to do with my site being down sometime. I have lot of websites on my server and they don't have any logs like the following: 117.169.1.85 - - ...
17
votes
6answers
13k views

2008 R2 Terminal Server: “Insufficient system resources exist to complete the requested service”

I'm working with a Windows 2008 R2 Terminal Server configured in a vSphere environment. It currently has 4 vCPUs and 32GB RAM. No overcommitment. The concurrent user count on this server has risen ...
2
votes
1answer
12k views

How to find my TeamViewer ID on SSH?

When I tried to run the command teamviewer --info I am getting the following output root@vps [~]# /opt/teamviewer8/tv_bin/TeamViewer --info TeamViewer 8.0.20931 teamviewerd ...
1
vote
4answers
23k views

I can connect to Samba server but cannot access shares.

I'm having trouble getting samba sharing working to access shares. I have setup a stand-alone box running Fedora 16 to use as a file-sharing and web development server. It needs to be able to share ...
5
votes
2answers
11k views

Understanding the output of openssl s_client

Ever since our email provider changed their SSL certificate, a POP3 client based on mono refuses to connect to their secure POP server to download emails. Other clients do not have an issue; e.g. ...
6
votes
5answers
29k views

Push new registry keys via group policy

Recently I have added registry keys in active directory and I need to push them via group policy instead of going to each PC to apply the new ones. How can I push new registry keys (not modify ...
5
votes
2answers
20k views

How to find all ways in which a Unix user account is locked

I occasionally find myself in a situation where an undermaintained system has an account that's been locked out. The problem is that there are a variety of ways in which an account can be locked out, ...
4
votes
1answer
6k views

Java 8 Update 25 Install Via GPO Not Working

I am trying to set up our Active Directory DC to automatically install Java 8 Update 25 (jre1.8.0_25.msi) using Group Policy. When attempting to add the jre1.8.0_25.msi package in the GPO at Computer ...
18
votes
3answers
44k views

How do I enable apache modules from the command line in RedHat?

How do I enable apache modules from the command line in RedHat? On Debian/Ubuntu systems I use a2enmod to enable modules from the command line. Is there an equivalent for RedHat/CentOS type systems? ...
1
vote
1answer
7k views

why adding Expire-Header to static files in nginX does not work

I have a single server block where my site resides in. Inside of that block I've added a location block as below: server { ... location ~* \.(?:ico|css|js|gif|jpe?g|png)$ { expires 30d; ...
3
votes
2answers
44k views

How do I allow remote access to mysql using xampp?

I'm using xampp and navicat to manage mysql on two dev machines (laptop & desktop). The laptop is my main machine, while the desktop acts as a local dev server for the group. Connecting to mysql ...
8
votes
1answer
10k views

An upstream response is buffered to a temporary file

I have a rather large and slow (complex data, complex frontend) web application build in RoR and served by Puma with nginx as reverse proxy. Looking at the nginx error log I see quite a few entries ...
8
votes
1answer
16k views

Server 2012: change desktop background color

On a Windows Server 2012 Remote Desktop Session Host with the Desktop Experience feature enabled and the desktop wallpaper disabled, users wish to configure own color schemes and define an own desktop ...
12
votes
2answers
30k views

Can I extract a specific folder using tar to another folder?

I am new to the world of Linux and seem to have run into a stumbling block. I know I can extract a specifc archive using the command tar xvfz archivename.tar.gz sampledir/ however how can I extract ...
12
2
votes
0answers
10k views

[SOLVED ]Openvpn routing for lan to lan through tun

I am trying to setup an OpenVPN tun to connect two lan's The open vpn connection is up and working but there is a problem with my routing or nat or something. What I need is an example of what a ...
3
votes
1answer
8k views

How do I route all traffic from clients connected to the DD-WRT to its OpenVPN tunnel tun0?

I am setting a secondary (DD-WRT) router to act as a OpenVPN client so that all clients would get VPN access simply by connecting to the router. But seems clients traffic is always routed via the main ...
11
votes
3answers
4k views

Protecting against POODLE SSL on stunnel

How can I mitigate POODLE SSL vulnerability when using stunnel as HTTPS reverse proxy?
6
votes
3answers
11k views

vSphere - copy virtual machine to external usb hard drive

We have an ESXi server standing somewhere else. I can connect to the server with the vSphere client. There is an external USB hard drive plugged into the server. How can I copy a stopped VM to the ...
4
votes
1answer
9k views

PowerShell - Finding all of users' group memberships and kicking it out of them

as title says, I have to find all the groups that the user is a member of, and deleting its membership from all of them. I've tried this: get-adgroup -filter * | where {(Get-ADGroupMember $_ | ...
5
votes
1answer
35k views

How to force background colour with GPO centred wallpaper?

As subject really. I can force a wallpaper through GPO, but how can I mandate that the desktop should be black? We have a mix of XP, Vista, and Windows 7 machines.
5
votes
5answers
27k views

How can I manually run a nagios check from the command line?

When defining and testing new services in nagios I have been restarting nagios, then clicking the service, and rescheduling a check for as soon as possible, then waiting until the check happens. Is ...
8
votes
4answers
23k views

Cannot switch, ssh to specific user: su: cannot set user id: Resource temporarily unavailable?

/var/log/secure: su: pam_keyinit(su-l:session): Unable to change UID to 500 temporarily su: pam_keyinit(su-l:session): Unable to change UID to 500 temporarily su: pam_unix(su-l:session): session ...
1
vote
3answers
14k views

How to enable remote device manager?

I have a hyper-v-server-2012-r2 Core server thats not joined to any domain. What configuration must i do on the server and client to connect with MMC \ Device Manager? I have managed to connect with ...
16
votes
1answer
20k views

Bandwidth limits for Amazon EC2

I have a micro instance on Amazon EC2 cloud. Also the instance is small and it has vary low CPU and EAM usage but it generates a lot of content, so it can be considered like a web server serving ...
2
votes
1answer
11k views

Downgrade IE11 on Windows 2012 Server R2

I have setup a test environment with Windows 2012 Server R2 Std, using RDS/RemoteFX. Anyways, the server is running fine but I need to use IE 10 and not IE 11 on the server itself. I have a web ...
7
votes
4answers
25k views

Limitations of SQL Server 2012 Express version?

I'm aware that the SQL Server 2008 R2 Express was limited to 1 CPU and 10 GB Databases. It's not clear if Microsoft bumped those numbers up to be more reflective of 2012. I looked at several places ...
-1
votes
2answers
7k views

How to install SVN client version 1.8 on CentOS/RHEL 6?

I'm trying to install the SVN client version 1.8 on CentOS 6. I'm using the description on http://tecadmin.net/install-subversion-1-8-on-centos-rhel/ All activities are running successful without ...
3
votes
3answers
8k views

Connecting to Remote Desktop using proxy and Remote Desktop Gateway?

I have setup a Remote Desktop Gateway server using Windows Server 2012 R2. I am using the Remote Desktop Gateway as an intermediary between to provide the remote desktop session over 443 since 3389 is ...
2
votes
1answer
19k views

How to change time source from “Local CMOS Clock” to “DC”

In a domain, I want to set DC as time server. To do that I use this command: w32tm /config /manualpeerlist:europe.pool.ntp.org /syncfromflags:manual /reliable:yes /update and w32tm /resync ...
0
votes
1answer
12k views

Setting a static route for a specific network adapter with two network adapters

I have a virtual windows server 2008 r2 with 2 virtual network adapters, one is part of a domain and the other isn't. When I ping to a specific PC that is part of the domain it connects to it through ...
2
votes
3answers
31k views

How to find out more hardware details using only ESXi4.1 and (possibly) shell

Running ESXi4.1 on an HP machine, with only remote access to the host ssh shell and the vmware console (no iLO), is there a way to gather a hardware report from the server? I am specifically ...
0
votes
2answers
9k views

nslookup requests time out regardless of server - ping is fine

I've been having intermittent internet connection issues for a week or so now. I now suspect that these are just DNS issues rather than connection issues. At the moment I can ping google.co.uk no ...
17
votes
2answers
3k views

Although 80 and 443 are system ports, how are most web servers able to bind to them anyway?

Running a web-service that binds to port 80 usually doesn't require sudoer privileges. Since ports 80/443 are system ports, meaning they can only be used by privileged users, how come those services ...
3
votes
3answers
10k views

Skip Secure Auth - MySQL 5.6.15

I want to turn off secure auth, 50% Of our clients are having problems Error: Connection using old (pre-4.1.1) authentication protocol refused (client option 'secure_auth' enabled) (2049) I ...
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11
votes
2answers
11k views

How to disable SSLv2 or SSLv3?

Anyone know how to disable certain SSL versions and only enable others in IIS 7.5?
1
vote
1answer
9k views

keytab auth against samba 4 DC: Client not found in Kerberos database while getting initial credentials

I set up a samba 4 active directory on ubuntu 14.04 following Samba AD DC HOWTO. In principle everything works well but I'm stuck in getting kerberos authentication running using SPNs for web ...
22
votes
2answers
27k views

IIS 7.x Application Pool Best Practices

We are about to deploy a bunch of sites to some new servers. I have the following questions about application pools: 1) It seems advisable to have an application pool per website. Are there any ...
4
votes
3answers
23k views

How do you apply proxy settings per computer instead of per user?

So far, I've used a user group policy object utilizing Internet Explorer maintenance to set a proxy for the user in IE. We have now deployed the Enterprise Client (EC) starter group policy to our ...
8
votes
2answers
8k views

How can I debug a docker container initialization?

I had an issue with a container, even though it builds perfectly it does not properly start. The cause is a workaround I've added to the Dockerfile (for having a self-configured /etc/hosts routing) ...