Greatest Hits

3
votes
6answers
13k views

This network location can't be included because it is not indexed

We are in the process of migrating a bunch of users' home directories onto a new server running Windows Storage Server 2008 R2. For most users, this has gone well and our group policy has done its ...
22
votes
2answers
26k 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 ...
14
votes
3answers
41k 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? ...
5
votes
5answers
25k 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 ...
2
votes
3answers
13k views

HDD: performance differences between 7.2k SATA and 15k SAS

What is the rule of thumb in performance characteristics and differences between 7200rpm (SATA/SAS) and 15000rpm (SAS) hard disc drives of the same generation?
6
votes
3answers
24k 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. ...
8
votes
2answers
15k views

Generate an OpenVPN profile for client user to import

Is there any documentation or resource describing how to generate and host a profile for an OpenVPN client to import? Ideally would like my users to not have to separately fetch a .zip file of the ...
11
7
votes
3answers
17k views

How to “restart” particular network interface on RHEL?

In RHEL, instead of using service network restart command, how can i restart a particular network interface, lets say "eth1", with only one command. "Only one command" because that is the only ...
11
votes
2answers
3k views

Disabling SSLv3 but still supporting SSLv2Hello in Apache

Many SSL clients, notably JDK 6, use the SSLv2Hello protocol to handshake with the server. Using this protocol does not mean you are using SSL 2.0 or 3.0 for that matter; it is merely a handshake to ...
6
votes
3answers
9k 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 ...
29
votes
8answers
10k 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 ...
5
votes
4answers
40k views

How to boot ISO image using gpxe and memdisk?

I have a repository of an ISO images (many different OS installers in ISO format) under http://myrepos/*.iso. I would like to boot from that repo using gPXE (with/without memdisk if necessary) and ...
15
votes
1answer
18k 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 ...
5
votes
2answers
9k 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. ...
1
vote
1answer
5k views

You don't have permission to access /cacti/index.php on this server

in cacti.conf I tried to edit the default context from localhost to 0.0.0.0 (and everything in between). Now I only have Alias /cacti /usr/share/cacti <Directory /usr/share/cacti/> ...
5
votes
2answers
15k views

How is DNS lookup configured for OSX Mountain Lion?

If I cat my resolv.conf, I see this message: # # Mac OS X Notice # # This file is not used by the host name and address resolution # or the DNS query routing mechanisms used by most processes on # ...
0
votes
2answers
5k views

how to get mysql.sock file, mistakenly deleted from “/mysql/tmp/”

I was stuck with a PDO Exception PDOException: SQLSTATE[HY000] [2002] Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2) in lock_may_be_available() (line 167 of ...
13
votes
2answers
4k views

What are the possible issues in using very short DHCP lease time (< 1min)?

We have a network setup for a demo, which lasts about 15mn. Our DHCP server is configured to assign ~ 100 addresses (max number of simultaneous connections or our AP) ... but since people might come ...
4
votes
2answers
17k 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
7k 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 $_ | ...
3
votes
1answer
13k views

what is acceptable datastore latency on VMware ESXi host?

Looking at our performance figures on our existing VMware ESXi 4.1 host at the Datastore/Real-time performance data Write Latency Avg 14 ms Max 41 ms Read Latency Avg 4.5 ms Max 12 ms People ...
3
votes
3answers
9k views

How To Properly Setup DNS Forwarders On Windows Server

I was wondering how to properly setup DNS forwarders on Windows Server 2008 R2. I have three Domain Controllers. Each of the DC's have have following: AD Role DNS Role DHCP Role Static IP Address ...
3
votes
2answers
7k views

What's the best way to see logged in users on Windows Server 2012?

Right now I use a powershell script to see the currently logged in users. But I don't see if there session is idle, active or inactive. I can see when the session was started but that's it. Is there a ...
8
votes
4answers
21k 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 ...
4
votes
3answers
21k 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 ...
3
votes
2answers
12k 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 ...
7
2
votes
3answers
28k 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
3answers
14k views

How do I configure IE10 Group Policy Settings on Server 2008 R2?

Where do I find the proxy server setting while creating a group policy? I know that IE 10 removed the IE Maintenance Policy. I read that you need to go through the Preference route. However, even ...
4
votes
4answers
7k views

Is there a way, to manually check for openssl CVE-2014-0160 vulnerability?

Is there a way for one to check some of internal services against CVE - CVE-2014-0160 (preferably using openssl CLI)? I CANNOT test everything just by using: Test your server for Heartbleed ...
3
votes
3answers
6k 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 ...
8
votes
1answer
50k views

How do you mount an NFS Share in Windows 7?

I have FreeNAS exposing an NFS. How do I access this from Windows 7? I have enabled the "Services for NFS" within Windows Features.
2
votes
1answer
11k 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 ...
2
votes
1answer
9k 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 ...
10
votes
4answers
29k views

kjournald reasons for high usage

I'm trying to figure out why is kjournald going crazy on my machine. It's an 8-core box with loads of memory. It's got ~50% cpu load. The iotop doesn't seem to point at any specific processes - some ...
28
votes
7answers
42k views

Should I RAID my SSDs?

I have a couple of SATA hard disks RAIDed for safety in my machine, because I'm worried about the drive having some sort of mechanical failure and losing my data. I'm considering switching to an SSD ...
10
-1
votes
2answers
5k 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 ...
4
votes
3answers
15k 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 ...
7
votes
1answer
8k 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 ...
4
votes
5answers
23k views

Disk IO slow on ESXi, even slower on a VM (freeNAS + iSCSI)

I have a server with ESXi 5 and iSCSI attached network storage. The storage server has 4x1Tb SATA II disks in Raid-Z on freenas 8.0.4. Those two machines are connected to each other with Gigabit ...
7
votes
2answers
7k 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) ...
3
votes
3answers
9k 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 ...
8
3
votes
1answer
6k views

unable to write to mount point (nfs-server), getting “Permission denied”

I'm trying to configure NFS between two RHEL7 nodes: first node: [root@ip-10-164-175-246 ~]# cat /etc/redhat-release Red Hat Enterprise Linux Server release 7.0 (Maipo) [root@ip-10-164-175-246 ~]# ...
5
0
votes
2answers
7k views

My server keeps sending emails to hostmaster@xxx.com

When I type mailq on my server, I get: BB523653A62 4025 Wed Jun 4 10:40:07 MAILER-DAEMON (delivery temporarily suspended: host p3smtpout.secureserver.net[208.109.80.54] refused to talk to me: ...
16
votes
5answers
8k views

Retrieve current domain user's full name

Using PowerShell, how can I get the currently logged on domain user's full name (not only its username) without the need of the ActiveDirectory module?
8
votes
1answer
13k 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 ...
7
votes
3answers
31k views

Why ip route add doesn't work, but ip route add with less details and then change works?

I have a problem with ip route add. Surprisingly, I can add the route then change it, but I cannot directly add it: # ip route add 192.168.0.0/16 via 192.168.255.254 src 192.168.1.101 RTNETLINK ...
4
votes
2answers
9k views

bad ownership or modes for chroot directory component

I created the user MY_USER. Set his home dir to /var/www/RESTRICTED_DIR, which is the path he should be restricted to. Then I edited sshd_config and set: Match user MY_USER ChrootDirectory ...
4
votes
4answers
14k 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 ...
0
votes
2answers
7k 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 ...
3
votes
2answers
8k views

Logging in with local admin account after joining domain

I was under the impression that once you joined a domain that the local admin account would be disabled. I did the following in Azure: Created Windows Server 2012 R2 instance and promoted to domain ...