13
votes
0answers
4k 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 ...
9
votes
0answers
140 views

Why higher await time for DM multipath device than underlying device?

We have a CentOS 6.4 based server attached to Hitachi HNAS 3080 storage and observed the kernel remount the filesystem in read-only mode: May 16 07:31:03 GNS3-SRV-CMP-001 kernel: [1259725.675814] ...
9
votes
0answers
107 views

SynProxy can not return syn ack packets with asymmetric dual bridge topology

I have a asymmetric dual bridge topology as shown below when i connect from 172.16.11.5 and 172.16.10.6 with ssh but i can not connect because of SynProxy. ------- ...
8
votes
0answers
218 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 ...
8
votes
0answers
279 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 ...
7
votes
0answers
403 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 ...
7
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 ...
7
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 ...
6
votes
0answers
195 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 ...
6
votes
0answers
210 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 ...
6
votes
0answers
419 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 ...
6
votes
0answers
524 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 ...
6
votes
0answers
2k 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. ...
6
votes
0answers
313 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 ...
6
votes
0answers
697 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 ...
6
votes
0answers
303 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 ...
6
votes
0answers
494 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 ...
5
votes
0answers
56 views

Best Foundation for Mesos Deployment

We are currently in the process of designing the architecture of our new Apache Mesos cloud setup. The goal is to unify our systems by moving different stacks onto the same architecture. The main ...
5
votes
0answers
69 views

How to automate zabbix web scenarios for vhosts?

I'm new to Zabbix and enterprise monitoring. I've just finished installing Zabbix 2.4. I'm trying to monitor the state of all our vhosts dislocated on different servers. Until now the only solution ...
5
votes
0answers
77 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, ...
5
votes
0answers
335 views

Systemd: start a unit after another unit REALLY starts

In my particular case I want to start remote-fs unit after all glusterfs completely starts. My systemd files: glusterfs target: node04:/usr/lib/systemd/system # cat glusterfsd.service [Unit] ...
5
votes
0answers
63 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 ...
5
votes
0answers
106 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 ...
5
votes
0answers
616 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 ...
5
votes
0answers
158 views

Check that a given user has a given priviledge

Given a pair of a user and a privilege I need to determine if a user have the privilege on the server. The following is true in my setup: The server is a part of a domain but not a domain controller ...
5
votes
0answers
2k views

The OCSP server has no status for the certificate. (Error code: sec_error_ocsp_unknown_cert)

Just set up a website (Apache/Centos) with SSL where the free cert came from startssl. I've used startssl before, and never had any problems. I have no problems accessing the site from IE and ...
5
votes
0answers
601 views

Failing to mount root from ramdisk while PXE boot

I have a working TFTP/DHCP PXE boot environment where I've already booted some images successful. Now I built an CentOS 6.5 diskless image and this one is failing booting with the following error: No ...
5
votes
0answers
252 views

Nginx client_max_body_size per location block (with php frontcontroller pattern)

I am looking for a solution for this problem. I understand the reasoning why the setup in that question does not work, but I try to get to a solution where I can get it working. The idea is to allow ...
5
votes
0answers
131 views

mod_evasive with Apache/2.2.16 dosn't work when I use curl

I have apache server: Server version: Apache/2.2.16 (Debian) Architecture: 64-bit threaded: no forked: yes (variable process count) Server compiled with.... -D ...
5
votes
0answers
764 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 ...
5
votes
0answers
120 views

restarting all specific units on systemctl without for loop?

Is someone here able to start/stop/reload/... a list of units specified with a wildcard or similar method on systemctl? I try do do somethin like: systemctl restart openstack-nova-*.services or ...
5
votes
0answers
311 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 ...
5
votes
0answers
680 views

Postgres roles best practice implementation

Folks, I could use your help making my Postgres user access control design better and more aligned with best practices. I'm helping roll out a small production Postgres server but I am not a DB ...
5
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 ...
5
votes
0answers
342 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 ...
5
votes
0answers
483 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 ...
5
votes
0answers
133 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 ...
5
votes
0answers
948 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 ...
5
votes
0answers
730 views

Forwarding traffic from TUN device (C++ backend) to the default gateway

The following problem is just a piece of the bigger solution I have a problem with. All other elements seem working so far, so I'll try to describe very small piece which I have problem with. I've ...
5
votes
0answers
907 views

“Error: Unknown error” when trying to start virtual machine from VMware server

Problem We are running VMware Server 2.0.0 build-116503 on a Ubuntu 10.04 LTS server. There is a virtual machine installed, running Lotus Domino on Windows Server 2003. Ever since a sudden power ...
5
votes
0answers
148 views

apparmor: same profile for multiple apps

so I have: #include <tunables/global> /usr/bin/python2.7 { /** mixrw, deny /** lwk, } /usr/lib/jvm/java-6-openjdk/jre/bin/java { /** mixrw, deny /** lwk, } ...
5
votes
0answers
684 views

OSX SL Server CalDav/DirectoryServices Authentication Error

I have a OSX SL Server (Version 10.6.8) that has been in production with about 40 users for approximately a year now. Since day one I have had problems where occasionally a users iCal client throws ...
5
votes
0answers
277 views

Firefox dynamic default preference configuration

My users are all on NFS home directories and with hundreds of users all using firefox it generates a bit of traffic reading/writing to the disk cache. As a result, I'd like to move the default ...
5
votes
0answers
702 views

How to configure PHPStorm to debug on IIS

I installed PHP 5 on IIS on a Windows 7 64 bit machine using the Web Platform Installer. I am using PHPStorm as my PHP IDE but cant find any documentation on how to get debugging to work. PHPStorm ...
4
votes
0answers
21 views

WSUS downloading driver updates every night

I have a WSUS server running on Windows Server 2012. We use it because of limited bandwidth available here Every night at 3 AM it downloads 2+ GB of updates, even though a "synchronise now" event ...
4
votes
0answers
83 views

How to troubleshoot rx_missed_errors?

Migrating from old server to new one, after setting all services, I notice a big dropped rx packets in my NIC: $ ifconfig eth2 | grep 'RX.*drop' RX packets:2059646370 errors:0 ...
4
votes
0answers
78 views

What would be involved in moving a site like stackoverflow to https?

I've seen a lot of requests in the SO Meta asking for StackOverflow to be moved over completely to https. I've never run a site as large as Stack Overflow, so enabling SSL/TLS has always just meant ...
4
votes
0answers
60 views

Cisco ASA failback to preferred IPsec peer

I just configured my Cisco ASA 5505 to failover to a backup internet line when the main outside interface is down. This all works fine. Also, I have a site-to-site IPSEC VPN tunnel from this ...
4
votes
0answers
71 views

VLAN ID over DHCP for Management Interface of Fortinet FortiAP

When configuring the FortiAP device it's desirable to configure the VLAN ID for the tagged management network. Accordingly to the manual it's possible to do so by "telnetting" to the FortiAP device ...
4
votes
0answers
35 views

Preventing users from deleting Google Calendar events

After switching over our email from self-hosting to GMail, my Sr. SysAdmin is looking for us to consolidate our company calendars into one singular Google Calendar. With our current system, if a user ...

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