3
votes
0answers
61 views

Adding SSD cache (PCIe) to existing Linux KVM Node with SATA disks

I currently have large KVM nodes utilizing between 8 & 16 RAID10 arrays & hardware raid. We typically provision a single large volume (VM's are backed up off site as well). KVM VM's using LVM ...
3
votes
0answers
18 views

IIS 7.5 not rolling over logs hourly

I have six IIS 7.5 web servers deployed using a Shared Configuration. The properties for the logging in the configuration are set to log Per Site, W3C, and on an hourly schedule: For five of the ...
3
votes
0answers
90 views

mod_wsgi End of script output before headers

I have a problem with my web application. Sometimes when people upload an image (seems to happen with large image only), I have mod_wsgi who crash with this message : End of script output before ...
3
votes
0answers
37 views

OCSP stapling with nginx

I'm having trouble with OCSP stapling in nginx. So I start up the openssl ocsp daemon, and then I visit my site. Then it says Invalid request. I am using a private PKI and CA. SSL key: 8192bit DH key ...
3
votes
0answers
57 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] ...
3
votes
0answers
111 views

Common back pressure strategies for services under sustained high load

I'm wondering what are the common backpressure strategies people use for their web services? Imagine your service operates under heavy load, and at some point the load reaches 120% of your capacity. ...
3
votes
0answers
73 views

Windows Server 2003 DC migration to 2 x 2012 R2 DCs - DCDiag error = Advertising: SERVER IS NOT RESPONDING or IS NOT CONSIDERED SUITABLE

We are upgrading our single 2003 domain controller (DC1) to two 2012 R2 controllers (DC2 in Sevenoaks and DC3 in Manchester (different site in Sites and Services for Manchester)). DCpromo (the wizard ...
3
votes
0answers
30 views

Dovecot and virtual domains with different namespaces

I've got dovecot 2.1.7 setup with virtual domains and now would like to have different public namespaces for each of the virtual domains. E.g. workdomain.com -> INBOX (private namespace) -> ...
3
votes
0answers
45 views

IPSec bandwidth between two Pfsense hosts has predictable, variable bandwidth

I have a IPSec tunnel between two Pfsense machines. Both machines are connected to a 100mbps symmetrical connection. The latency between the two routers is ~70ms. I'm using AES-GCM-128 and SHA1, both ...
3
votes
0answers
39 views

Update SQL Service Pack Named Instance

I have an existing SQL 2008 R2 on SP3. Have another instance in use that is SQL 2008 R2 SP1 I need to update the named instance with sp1 to sp3 but i'm not getting any options. It tells me my version ...
3
votes
0answers
249 views

WebRTC on standalone asterisk - no audio

After struggling with Asterisk for WebRTC for a few weeks now, I decided to put my problem on this forum. My Problem is as follows: Im not getting audio from WebRTC to WebRTC clients. I work in a LAN ...
3
votes
0answers
49 views

Besides looking dumping $PSVersionTable and dumping the variable and env “PS-Drives”, what else can I do to compare PowerShell environments?

Besides looking dumping $PSVersionTable and dumping the variable and env "PS-Drives", what can I do to compare PowerShell environments? Here's the problem: I have very similar machines running ...
3
votes
0answers
83 views

SSSD process won't die

Thanks for taking the time to check out my problem. I'm currently working on an issue that has only appeared once before. Back on Jan 3rd when this first appeared we were able to reboot the server ...
3
votes
0answers
40 views

date command displays different time

I have one centos 5.8 Linux server. I am experiencing a bit strange issue and figured out it is something with system time. When I check date command, outputs are really strange. Here is example: ...
3
votes
0answers
97 views

Google Cloud Print Fails - Finding Logs?

Recently we've been seeing Google Cloud Print Service fail to print on Xerox printers. We're relatively sure it's a Drivers issue. When attempting to Print to a Xerox printer, the Cloud Print portal ...
3
votes
0answers
48 views

100BASE-FX single-mode, confusing distances

I'm new to Ethernet over Fiber, so please bear with me. According to the standard, 100BASE-FX over SMF supports distances up to 10 Km. Technical documentation of some products states support for ...
3
votes
0answers
47 views

Smart Card S/MIME with Exchange 2013

I have an Exchange 2013 environment that I'm trying to implement S/MIME with smart cards. To the best of my knowledge, and the little help I have received on TechNet, I have configured my Exchange ...
3
votes
0answers
158 views

Why Outlook, Hotmail and Live return 250 Mail queued for delivery, but they never deliver it?

Ok, i've been seeing this the last week, tought it could be gone in a few days by itself, since i wasn't blacklisted and my DNS entries are all ok, but when i try to send e-mails to some user at ...
3
votes
0answers
85 views

AD Replica DC Promotion Stall

I recently inherited infrastructure duties for a small startup I am working with. My traditional role has been development, so bear with me... I was hoping to start off on the right foot, and get ...
3
votes
0answers
118 views

Not Able to Mount USB HDD in Linux

I'm having a problem with a server that I just installed kernel 2.6.18-371.el5 on. It's an old kernel for Red Hat 5, I know, but due to certain "restrictions" I am forced into using that for the time ...
3
votes
0answers
43 views

Why is my HDD partition a character special device?

I have a bunch of old 1T disks with an mdadm array on them. They had been out of commission for awhile, but yesterday I slotted them into a server running an up to date Debian Jessie. Eventually I ...
3
votes
0answers
209 views

How to “bounce” or proxy XMPP accounts?

I think I'm looking for an XMPP bouncer. But XMPP federation is a confusing thing for someone who's never dug into it before, so I'm having trouble evaluating solutions or even searching for the right ...
3
votes
0answers
53 views

Windows Servers on ESXi 100% CPU at year rollover

We have a number of Windows Server 2008 R2 SP1 servers running on ESXi servers. At year end rollover 2014 to 2015 the CPUs go to 100% and the machines hang. The solution appears to be a hotfix ...
3
votes
0answers
121 views

How do I set up openshift’s bind correctly

I have set up an instance of redhat’s Openshift origin and am sometimes having troubles resolving the individual apps’ domains from the outside. I have two physical machines running, both with their ...
3
votes
0answers
29 views

Installing MSA (Managed Service Accounts) using deployment tools

I have to install several new servers (2012R2) for a project, which will run IIS and MSMQ, I need to script the complete install, so I need to be able to change permissions on IIS Application Pools ...
3
votes
0answers
32 views

How can I introspect the “shared subtree” mount flags for a particular mount?

Under Linux, the shared subtree flags control how a mountpoint is shared with parent and child mount namespaces. These flags include MS_SHARED, MS_PRIVATE, and MS_SLAVE. How can one see which of ...
3
votes
0answers
51 views

Active Directory Administrative Center - resize membership part

User can be a member of 3 groups at most to be visible in ADAC without scrolling. But in reality, users are members of 5, 10 even 20 groups. We have to scroll the "member of" list to check the ...
3
votes
0answers
350 views

Mac (Yosemite) Samba 4.1.6 under Ubuntu

I'm finding that accessing a Samba share (4.1.6) from a Mac running Yosemite can be extremely slow. It can take several minutes (no exaggeration) to display a folder containing four or five files. ...
3
votes
0answers
128 views

How can I prevent Outlook 2007 and 2010 from disabling particular add-ins automatically?

Right now, we've got a business critical application that installs an Outlook add-in. It is a bit slow to load, which makes Outlook 2013 kill it after a few runs, but I've mitigated the issue of ...
3
votes
0answers
458 views

Rename Junk folder in dovecot IMAP server

Being English, I find the terms "Trash" and "Junk" confusing because they mean essentially the same thing. I want to rename these folders on my Dovecot IMAP server to "Deleted" and "Spam" respectively ...
3
votes
0answers
881 views

Ubiquiti Wireless Guest Network VLAN w/ pfSense + Cisco Switch

I'm trying to setup a guest wireless network in an environment that has been humming along nicely for quite some time. The wireless runs on Ubiquiti UniFi APs. I hope this is clear. If its not, feel ...
3
votes
0answers
33 views

How do I get as much debugging info as possible out of the Network Policy Server (ias) service?

We are trying to authenticate a client on remote vpn, through a Meraki Z1 teleworker appliance. The Z1 is sending a proper request, the Network Policy Server (ias) service is apparently ...
3
votes
0answers
80 views

Azure backup folder exclusion

I tried to find a way to do it, but I am not sure if it's possible or not. Using Recovery services on Azure, I installed the Microsoft Azure Backup Agent on an IIS server. We have multiple websites ...
3
votes
0answers
62 views

Setting header based on client certificate

I have Apache running as a reverse proxy for an internal server. Users hitting the proxy are required to use client certificates. On the internal server, there is a web application that can use an ...
3
votes
0answers
52 views

Efficiently get file deltas for backups

With many large Xen sparse image files that have to be backed up, I'm looking for a way to do this efficiently both in terms of disk space (saving space with a differential tool like duplicity, bup, ...
3
votes
0answers
388 views

nginx & php-fpm [debug] 11: Resource temporarily unavailable

New Development The core php error logs are below, but the site specific error logs show this. The memory on my php.ini file is : memory_size 1024; so it's not php's memory limit. I've also ...
3
votes
0answers
255 views

How to enable certain SSL cipher while having disabled the group?

I would like to enable the SSL cipher EDH-DSS-DES-CBC3-SHA (also known as TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA) in my nginx SSL environment to support IE8 on Windows XP. The base SSL ciphers for nginx ...
3
votes
0answers
671 views

Windows updates fail (KB2992611) - “The stub received bad data”

I am trying to install the two updates for KB2992611 manually on some Windows 2008 R2 SP1 servers as they haven't been brought down by Windows updates: ...
3
votes
0answers
53 views

Http Request Hangs Client Side

We've run a website for several years with thousands of visitors. Very rarely the following problem happens to a certain group of users: A certain user of that group makes a client side action on his ...
3
votes
0answers
361 views

Haproxy: reject traffic by user agent from file

I am trying to reject connections from specific user agents (by matching a substring of the user-agent header) using an haproxy ACL with -f option to read from a file. However it is not working, it ...
3
votes
0answers
102 views

IIS 7 Redirect from HTTP to HTTPS fail with ampersand in URL

IIS 7 on Windows Server 2008 R2 SP1 I have added the following rule to my web.config to redirect all incoming request to HTTPS <rule name="HTTP to HTTPS redirect" stopProcessing="true"> ...
3
votes
0answers
73 views

Big Trouble with (I think) Outlook X500 addressing

I moved a small client from one hosted Exchange server (Microsoft Office 365) to another (Intermedia.net). Some emails from External senders to the users on the new server host are undeliverable, ...
3
votes
0answers
43 views

How can I explicitly disable TLS when sending to one specific recipient?

I have a SendMail 8.14 server deployed in the middle of an SMTP workflow (Outbound mail looks like Exchange -> SendMail -> Appliance -> Internet) I have TLS configured for the first three hosts. ...
3
votes
0answers
28 views

Data location of IBM i Apache server descriptions in HTTPAdmin interface

I'm working on replicating Apache servers to a HA box, and I can replicate the servers themselves correctly (QUSRSYS/QATMHINSTC and the associated files in /www/), but I cannot find where the ...
3
votes
0answers
156 views

IIS 8.5 forces incorrect Content-Length header

We have a application that generates PDF files dynamically and forces a download of a the file. This code was working without issue on a Windows Server 2008. From what I can tell it appears that IIS ...
3
votes
0answers
158 views

TCP Window Scaling Problem over MPLS

After extensive troubleshooting why the TCP speed over an MPLS circuit is slow in one direction, I figured out that by adjusting the TCP window size the situation improved a lot. Maybe you can tell me ...
3
votes
0answers
166 views

TCP congestion collapse

I am experiencing suboptimal performance on an EC2 instance connecting to an RDS instance. This particular instance was built before VPC's existed, so all the traffic is flowing through a single ...
3
votes
0answers
276 views

TCP connection stuck in SYN_RECV state despite ACK received

My client and server are both internal machines. tcpdump on both client and server show all three parts of handshake are communicated, however netstat on server shows SYN_RECV, and on client shows ...
3
votes
0answers
65 views

Exchange+Outlook 2013 - Read Mails turn Unread

I have a local EX2013 server and several Outlook 2013 clients. Some of the clients occasionally (once or twice a day) see a random read email turn unread with no apparent reason. I went through the ...
3
votes
0answers
103 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 ...

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