8
votes
0answers
3k views

“Unable to open the Server service performance object.”

I have a group of servers which all show these symptoms. Every 2-7 days twice in a row, the following error shows up in the Application event log: Unable to open the Server service performance ...
7
votes
0answers
76 views

Vendor whitepaper says: 5Mpps no prob. I'm hitting already a wall at 120kpps. Where's the bottleneck?

HP's whitepaper on their Broadcom QLogic NetXtreme II adapters, which includes the specific NIC that I'm testing, states (page 7) that their small packet performance for packets up to 256 bytes/packet ...
7
votes
0answers
2k views

Windows VPN server can talk to VPN clients, but won't send packets from its local network to the VPN clients

I want to configure Windows Server 2012, and its Windows 7 and Windows 8 VPN clients, with an SSTP VPN that uses split tunneling and off-subnet addressing, but I'm running into a problem: the RRAS ...
6
votes
0answers
38 views

Cannot add conditional forwarder without root zone

(Disclaimer: I am not a Windows DNS admin. I do have a decent amount of DNS experience under my belt though, and this is not making any sense. I am working closely with the admins responsible for ...
6
votes
0answers
71 views

Powershell's equivalent to Bash's process substitution

Bash has <(..) for process substitution. What is Powershell's equivalent? I know there is $(...), but it returns a string, while <(..) returns a file the outer command can read from, which is ...
6
votes
0answers
499 views

How can I eliminate the “Several add-ons are ready for use” prompt in Internet Explorer?

The issue I describe here is the same as that in Group Policy Internet Explorer, Add-on list not working, but I provide more detail and troubleshooting steps, so I thought it was worth re-asking. I ...
6
votes
0answers
116 views

Why is ZFS not doing anything with my disk's duff sector?

I was under the impression that if an I/O error occurs during a read from a ZFS pool, two things will happen: The failure will be recorded in either the READ or CKSUM statistic of the relevant ...
6
votes
0answers
16k views

svchost.exe -k netsvcs occupying >1GB memory

I have noticed my production server "svchost.exe -k netsvcs" is occupying >1GB ram memory, steadily, which I think is a bit excessive. This is what tasklist /svc will give me for this process: ...
6
votes
0answers
1k views

`apache2ctl restart` makes apache forget about cgi-bin

On my Debian machine (running the apache as packaged by Debian, package 2.4.7-1), every time apache restarts through apache2ctl restart or apache2ctl graceful, it forgets about my cgi-bin directory: ...
6
votes
0answers
4k views

Cisco ASA Site-to-Site VPN Dropping

I have three sites, Toronto (1.1.1.1), Mississauga (2.2.2.2) and San Francisco (3.3.3.3). All three sites have ASA 5520. All the sites are connected together with two site-to-site VPN links between ...
6
votes
0answers
451 views

Database Backup and Full-Text Search

I am running SQL Server 2005 EE. When trying to perform a full database backup I receive the error message: Failed to pause catalog for backup. Backup was aborted.BACKUP DATABASE is terminating ...
5
votes
0answers
65 views

Multi-datacenter Ansible load balancer template

I am migrating the management of an existing multi-datacenter setup to Ansible, but I am not sure what is the best way to model it, as I am new to it. I have three data centers D1, D2 and D3. In ...
5
votes
0answers
31 views

OCSP responder not present?

Am trying to set up OCSP validation routines, and so want to be comfortable with the environment first. Found excellent tutorials at for example OpenSSL: Manually verify a certificate against an ...
5
votes
0answers
357 views

Is it a good idea to store Docker volumes in glusterfs?

I am currently thinking about migrating some of our servers and apps to a coreos enviroment. One of the problems I see here is the management of persistent data as coreos does not handle Docker ...
5
votes
0answers
69 views

how to find the event where someone ejected a hot pluggable device

I got a Win Server 2008 R2 on a VM. I think someone accidentally ejected the NIC card that is presented as a hot pluggable device. But I am trying to find proof of that in the windows event logs and I ...
5
votes
0answers
86 views

Cisco DNS doctoring or Hairpinning?

I've the following configuration: CISCO 881, IOS 15.2(4)M6. On WAN interface is configured the 86.34.156.48/29 subnet from our ISP. Behind the router is staying 2 webserver. NAT: 86.34.156.51 <> ...
5
votes
0answers
153 views

Why do things break when using DFS/Folder Redirection?

Here are two slightly different, but similar scenarios: There is an S:\ drive mapped to \\server\share. A DFS namespace is then implemented, with S:\ changed to \\domain.local\dfs\share (which is ...
5
votes
0answers
110 views

Odd performance fluctation with php-fpm and nginx

I'm running a load test against a web service. It's a php application running on php-fpm and nginx, with fastcgi. There is a MySQL backend being used for small reads only. Invariably, I'm seeing a ...
5
votes
0answers
233 views

Reflash Supermicro BIOS Chip with external EEPROM programmer

I've a Supermicro server, out of warranty, and it suicided in the last month. Yes, exactly. During a AMIBIOS update process the BIOS Watchdog has been tripped and the motherboard reseted during the ...
5
votes
0answers
100 views

IIS integrated mode foreign characters

OK so this has been driving us crazy. We have an application built in ASP.NET 4.0 running on Windows Server 2012 and IIS8. A few pages of our site are translated into multiple languages, notably ...
5
votes
0answers
349 views

How can I debug PAC (proxy auto config) on Windows 8.1 (IE11 and Modern UI)?

On older systems such as Windows 7 + IE10, calling "alert()" in the PAC file would cause a dialog being shown. However, with Windows 8.1 no dialogs are displayed even if IE11 seems to be making use ...
5
votes
0answers
62 views

Printing from BYOD to internal printer

I have external contractors sitting in my office that have access to various file shares via Citrix (they are not on our internal network). These contractors require printing. Is there a way to ...
5
votes
0answers
185 views

How to use Chrome's CRL sets (or some master CRL list) as a CRL file?

I am looking for a master CRL list. The closest thing I have found is the Chromium project's CRLSets. I used crlset-tools to get the crlset (crlset fetch > crl-set) and then dumped the serial ...
5
votes
0answers
536 views

ModSecurity on Apache (Debian Wheezy), Authentication logging

I am new to ModSecurity, it works great on the server, but I would like to control the way it logs things. For example as I am troubleshooting my website in order to whitelist or correct php coding ...
5
votes
0answers
1k views

subversion load fails with “no such revision”

I'm trying to learn how to migrate a Subversion repo, and am running into an issue that doesn't make sense to me. I've used svndumpfilter to split out a sub-project, and have removed some path ...
5
votes
0answers
385 views

Freebsd change default Internet channel route

I have two Internet channel and Gateway on freebsd. When I switch channel with the command route change default chan2, the command netstat -nr shows changed default route. But traceroute shows that ...
5
votes
0answers
1k views

IIS 7.5 - Disable Overlapped Recycle property not being obeyed when web.config is updated

I have a site which holds an exclusive lock on some resources. I used the .NET Application_Start and Application_End events to aquire and release the lock on these resources at the appropriate time. ...
5
votes
0answers
261 views

How do I download the avatar image from an Active Directory server?

I'm using the ldapsearch.exe binary that was installed along with an Oracle client. It took awhile to tease out the arguments that it wanted, but I'm able to successfully connect to AD and parse out ...
5
votes
0answers
634 views

Dynamic ARP Entries turning into Static ARP entries

I recently acquired a client that has a strange ARP caching issue on one of thier servers. I have a server that will eventually start turning it's dynamic ARP entries into static ARP entries. This ...
5
votes
0answers
1k views

Creating Virtual Network Azure - The Gateway was not created

It's been sitting at "THE GATEWAY WAS NOT CREATED." for hours after creating a Virtual Network in Azure. Is this normal? What should I do? We previously created a network in the wrong DC, it didn't ...
5
votes
0answers
282 views

AD custom attribute of type numerical string crashes MMC when updated

I am using windows server 2008. I have a domain with one domain controller (this is a dev environment). I edited the AD schema and created a custom attribute called TestAttribute2 (the LDAP name is ...
5
votes
0answers
458 views

Export GFI MailArchiver e-mails for import into Exchange 2010 SP1 Personal Archiving

We have an existing installation of GFI MailArchiver 5 with several databases of archives (perhaps 100-150GB). The goal is to export each user's archived e-mail and then import it into Exchange 2010 ...
4
votes
0answers
11 views

Windows 7 contains duplicate, identical builtin print forms (Letter, Legal) but only one of the 2 successfully prints

I have a Windows 7 64-bit machine with a Lexmark E360dn printer. Whenever the user attempts to print anything, the printer defaults to "Letter" size, as expected. When the user clicks PRINT, the ...
4
votes
0answers
31 views

How does server-side `TIME_WAIT` really work?

I know there are quite a few SE questions on this, and I believe I read as many of them as it matters before coming to this point. By "server-side TIME_WAIT" I mean the state of a server-side socket ...
4
votes
0answers
47 views

Determining LTO Cleaning Tape Expiration?

I have some LTO tape drives, and use cleaning tapes as required, but the lifetime of the cleaning tapes is not as predictable as I would have expected. I'm looking for a way to query the system, ...
4
votes
0answers
34 views

Network Filesystem fails during high I/O Speeds

I am a user on a cluster using NFS for our data storage needs. Recently, I have been running a pipeline which has very high I/O during some operations. The program we think is causing the problem is ...
4
votes
0answers
38 views

How to ensure sshd is the last service to be stopped during shutdown?

I have noticed that when I issue a reboot command, my SSH connection is immediately closed on CentOS 7. It does not mean the server has rebooted, as I can still ping it. It seems systemd is killing ...
4
votes
0answers
51 views

Setting up IPv6 ACLs on 3com 5500g to block Router Advertisment messages

Is there a way to set up IPv6 ACLs on 3com 5500g switch to block RA traffic on access ports? I couldn't find settings for setting up any IPv6 ACL. Acording to guides, there should be ipv6 specific ...
4
votes
0answers
100 views

Configure Juniper M320 as Ethernet/STM transparent converter

There is Juniper M320. We need to move ALL the traffic from one port to another. Everything that comes to one port goes to another and vice versa. No snooping or any other processing is required. One ...
4
votes
0answers
382 views

Configure haproxy to return a 204 for a certain ACL match

I want to return a HTTP 204 error code if anyone tries to access a particular path on my web server. I could set one of my webservers to return a 204 error and point haproxy to it as a backend. ...
4
votes
0answers
186 views

RabbitMQ - How I do configure servers for zero-downtime upgrades?

Having read through the docs and RabbitMQ in Action, creating a RabbitMQ cluster seems straightforward enough, but upgrading or patching an existing RabbitMQ cluster seems to require the whole cluster ...
4
votes
0answers
542 views

Docker: Permission denied on folders added with ADD

I'm trying to configure a postgresql installation using docker. FROM ubuntu:13.10 ADD . /db # install postgres # ... RUN chown postgres:postgres /db -R && \ chmod 700 /db -R USER ...
4
votes
0answers
687 views

SCCM Reporting - “Report Builder click-once application does not exist on the report server”

I (and my manager) would like to be able to create custom reports in SCCM 2012 SP1 through the Configuration Manager Administrative Console from the comfort of our workstations. Unfortunately, if you ...
4
votes
0answers
269 views

Risks of setting noCompressionForHttp10 and noCompressionForProxies to false

We recently switched to Amazon Cloudfront for static content. It seems that Cloudfront does HTTP 1.0 requests to the origin server (IIS 7.0) using the Via header. By default IIS 7.0 disables file ...
4
votes
0answers
502 views

Exim 4.71 does not add DKIM signature to outgoing emails

I am trying to add DKIM to my domain, I have created a key, added the following to /etc/exim4/conf.d/transport/30_exim4_config_remote_smtp: dkim_domain = mydomain.com dkim_selector = mail1 ...
4
votes
0answers
1k views

How to execute bat file remotely using Psexec from team city inside the powershell command

I have a powershell command which runs in TeamCity. When I try to run a batch file remotely using psexec from this .ps file, I see once the remote execution started, nothing happens. I tried several ...
4
votes
0answers
325 views

What does tracert make NETBIOS work on Win7?

This is really strange - I have a workaround for this (read on), but I'd love to know why it works. I had a VPN setup working fine with a WinServer2003 server and a Vista client. Then I setup a new ...
4
votes
0answers
441 views

Highly-available, Web-accessible and scalable deployment of statsd and graphite

I'd like to setup statsd/graphite so that I can log JS apps running on HTML devices (ie. not in a contained LAN environment, and possibly with a large volume of incoming data that I don't directly ...
4
votes
0answers
127 views

IOS QOS service policy pass-through on a tunnel interface

I have some SIP phones on one network that go through an IPIP tunnel to get to the server. I've setup QOS rules to watch for appropriate VOIP traffic as follows: class-map match-any class-voice ...
4
votes
0answers
913 views

Connecting to IIS on Hyper-V Windows 8 host from XP virtual machine

I have a windows 8 machine running an XP virtual machine with Hyper-V. The virtual machine uses an 'external' virtual switch, and after 'Integration Services Setup', it can see the internet ok. My ...

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