0
votes
2answers
13 views

Are there any reasons why we should not block unencrypted service ports for mail such as 25,110 & 143?

I want to block smtp 25, pop 110 & imap 143 and only use secured smtps 465, pop3s 995 & imaps 993. Are there good reasons to let port 25,110,143 open?
1
vote
0answers
12 views

How to install PHP xdiff extension on Debian?

I am trying to install the PHP xdiff extension on Debian with Apache 2 and PHP Version 5.4.44, but I can't get it working. I tried the following pecl install xdiff But I got errors: […] checking ...
1
vote
0answers
12 views

Creating a linux-based black box environment?

This is a subject I've found very little on and while there are theory-based articles out there, I can't find anything with specifics. I also wasn't sure whether this should live on stack overflow or ...
0
votes
0answers
2 views

SATA vs SAS vs SSD for Virtual Machine Automation

We're using SCVMM and Hyper-V hosts to manage our Automated VM environments. Currently we have two servers with 3 7.2k consumer drives each (one for host OS/Storage, two for VMs). It's hard to say ...
3
votes
1answer
1k views

Exchange's New-MailboxExportRequest behaves strangely with DateTime parameters to ContentFilter

I am attempting to extract a certain date-range of emails from a mailbox into a PST, but using a DateTime parameter for ContentFilter doesn't seem to work as expected. This should export everything ...
1
vote
3answers
2k views

Extremely slow startup of tomcat

I have a tomcat 7 installation on a Solaris 10 server. My problem is that starting the server (or deploying a new war) is extremely slow. It usually take 30 - 60 minutes. The war application is a ...
1
vote
0answers
9 views

Is there an extension of host to host ipsec to a many-many configuration?

Having a typical host to host transport mode ipsec configuration, conn appserver01-to-swift01 leftid=@appserver01.server.com left=10.133.176.246 leftrsasigkey=xxxxxxxxxxxxxxxxxxxxxxxx ...
0
votes
0answers
13 views

Why is grub not booting from 2nd drive?

My volumes look like this /dev/xvda1: LABEL="cloudimg-rootfs" UUID="d4f2aafc-946a-4514-930d-4c45e676f198" TYPE="ext4" /dev/xvdf1: LABEL="permaroot" UUID="afb7e502-ad08-4d6a-8701-2c05863f958e" ...
2
votes
3answers
25 views

Apache httpd reverse proxy delegate SSL to backend

Usually using Apache as reverse proxy is done to do SSL offloading and so Apache handles all the SSL stuff and the backend server just manage plain http. But is it possible to do the opposite ? I'm ...
-2
votes
2answers
22 views

Promiscuous mode not working with ubuntu and wireshark

I am running Ubuntu Linux and have installed wireshark on it. I can see the incoming and outgoing traffic just fine. Now I want to see the traffic from other devices which are on my LAN. So, I did: ...
0
votes
1answer
20 views

Syslog-ng service hanging on restart

I've been a long time lurker of the site but this is my first question. So please let me know if there are any issues with my post. Two of the servers in our Ubuntu server farm (25+ machines) take a ...
1
vote
0answers
8 views

Use different client IPs with mod_rewrite and mod_remoteip

I have a reverse proxy that my site points to to help with DDoS protection. I have mod_rewrite set to use a specific header provided by the reverse proxy in order to pull the actual client IPs instead ...
1
vote
1answer
1k views

How to make sysctl network bridge settings persist after a reboot?

I am setting up a notebook for software demo purpose. The machine has 8GB RAM, a Core i7 Intel CPU, a 128GB SSD, and runs Ubuntu 12.04 LTS 64bit. The notebook is used as a KVM host and runs a few KVM ...
0
votes
2answers
1k views

Deploying play! 2.0 application on an apache server with a reverse proxy

I'm trying to deploy my play! 2.0 application on an Ubuntu 11.10 server and I have been running into error after error and hope someone can help me here. I am try to deploy my Play! application using ...
0
votes
0answers
5 views

utf-8 in jboss eap 6 url [migrated]

Have installed JBoss EAP 6.3/6.4 and cannot make it use UTF-8 for URLs. I mean, that unicode characters in forms with "get" method are not working. For example, the following JSP does not work ...
0
votes
1answer
27 views

tshark packet capture performance CentOS 6 v CentOS 7

I am attempting to capture approx 20mbit/sec worth of traffic continuously with tshark. If I capture packets with tshark on CentOS 6.5 I get around 4% to 66% packets dropped. If I do the same thing on ...
2
votes
1answer
4k views

Failure to install NetFX3 on Windows Server 2012: Error 3017 — Am I missing something here?

I am really struggling to get this installed. I have tried the suggestions here in an attempt to rectify any possible corruption. I mounted the disk image to 'G' to do an offline install. I also ...
4
votes
1answer
3k views

How to connect AD Explorer from Sysinternals to Global Catalog

I'm using the sysinternals AD Explorer quite frequently to search and inspect an Active Directory without any big problems. But now i'd like to connect not only to a single AD Server. Instead i like ...
0
votes
1answer
13 views

Searching for files containing text (not string) in bash

How do I find files containing some particular text containing newlines and plenty of other charachters all sorts of quotes and backslashes using terminal?
1
vote
0answers
6 views

fdisk and parted won't work on a USB stick with Fedora 23 alpha 2 x86_64

So I burned a Fedora 23 alpha 2 on a 16GB USB stick through dd if=path/to/fedora.iso of=/dev/usb_device bs=512 I used bs=512 because the sectors on the stick are 512 bytes. Opening the stick in ...
0
votes
1answer
17 views

How can I strip or rewrite the sender's name of a from address when using postfix?

Objective I'm trying to configure a CentOS 7 system so all mail sent to local system accounts gets redirected to an alternate email address. For example, if mail is sent to root I want it to be ...
0
votes
0answers
6 views

journalctl access for non-root users

The journald documentation says that adding a user to 'systemd-journal' group or 'adm' group allows the user to access system-wide journal. I'm running the latest CentOS 7 and I seem to have problem ...
0
votes
0answers
7 views

How to enforce dnsmasq to use internal dns for apex domain

We host example.com at Amazon and use Route 53 which works well outside VPN. From inside VPN we need to access to multiple internal subdomains, such as test.example.com, dev.example.com etc. which ...
0
votes
1answer
15 views

How to enable slow query log in MySQL Galera?

I want to enable slow query logging in MySQL Galera. In order to do so, I have enabled it through my.cnf: log_slow_queries = /var/log/mysql/mysql-slow.log long_query_time = 1 ...
0
votes
2answers
13 views

ImageMagick suddenly stopped working on several of our servers

Overnight, the PECL ImageMagick extension suddenly stopped working on several of our servers. The error message displayed was as follows: PHP Warning: PHP Startup: Unable to load dynamic library ...
0
votes
0answers
5 views

CoreOS update failed

When running the update command for CoreOS I get an update failed error. According to the documentation this means that there are no updates found. This shouldn't be the case as the version I'm ...
1
vote
1answer
18 views

Where's a browser that supports weak encryption (such as SSL3, RC4, …)? [on hold]

While it may be good for the interwebs as whole that all current versions make it difficult or even impossible to establish a https connection with a web server that supports only weak encryption ...
0
votes
0answers
14 views

cant perform upgrade from server 2008 standard to enterprise

I have an 32bit Windows server 2008 standard installation which I would like to upgrade to enterprise. Its a non R2 version. The installation is Dutch. I'm using a Dutch setup disk as well (and the ...
0
votes
1answer
14 views

Are zero byte files an indication of file system corruption?

I recently noticed a strange behaviour. I could not restart a productive webserver running since more than a year because the configuration was invalid: # /etc/init.d/apache2 restart Syntax error on ...
3
votes
2answers
3k views

Securing Apache Solr in production

I am setting up Apache Solr 4.1 that will be used to index data for a web app. Only the web app should have access to the Solr. Users and other clients will not talk directly to Solr. What are some ...
6
votes
6answers
42k views

Mount network drive as physical drive

Is there a way to mount a network location so that it appears as a local physical disk? e.g. \\computer\share as D: (not a network drive)
0
votes
0answers
16 views

Exchange 2010 Tracking Log Explorer only showing internal email

I have 2 Exchange 2010 servers. I was looking for a receive time of a certain email so I opened Tracking Log Explorer and added the appropriate Date & Time filters. All I see are internal emails ...
0
votes
1answer
1k views

Network aliases on boot on Fedora 17

We have a fedora server(Fedora release 17 (Beefy Miracle)) with a few aliases on the main NIC that don't get setup during boot. Here's my config: # cat /etc/sysconfig/network-scripts/ifcfg-em1* ...
0
votes
1answer
1k views

IIS Admin Service is disabled

I had installed IIS 5.1 in windows XP and it was working fine. But it stopped working. Then I installed it again. Now i can see it installed in my computer but I still can't go to http://localhost. ...
0
votes
3answers
306 views

Public and Private keys incorrect for user

I've followed this tutorial (which worked for me on several VPS's) to configure a secure way to install and update themes and plugins in Wordpress. Basically: sudo adduser wp-user cd /var/www sudo ...
0
votes
0answers
6 views

Apache “httpd fullstatus” when connection limit exceeded

I'm trying to dump "httpd fullstatus" to a log file at the exact moment when the connection limit has been exceeded and Apache stops accepting new connections. Unfortunately "httpd fullstatus" ...
2
votes
1answer
638 views

Wordpress SFTP auto update issues

I have run into an issue with WordPress and ssh. Essentially,I am trying to enable auto updating with Wordpress over SFTP. I have followed the directions on This thead on DigitalOcean.com up I have ...
0
votes
0answers
6 views

UFW - Set correct kernel params

As every system administrator does, one of the first things i did right after booting up my web server was install ufw and tune/set kernel parameters in /etc/sysctl.conf. By the way, this is my ...
0
votes
0answers
5 views

Rewrite subdomains in Nginx

Because I don't want to use CDN anymore I would like to rewrite cdn.example.com to www.example.com. How to do this with Nginx? There is only www.example.com in my server block.
2
votes
3answers
574 views

PFsense https connections unusably slow

I have a very strange issue with PFsense as router running in KVM with CentOS 7. https connections are incredibly slow (10KB/s or less), and uploads over https simply don't work; for example using ...
0
votes
1answer
2k views

iptables forwarding through virtual interfaces

I'm trying to configure my computer as a gateway between two networks, but I cannot make it working for some reasons Here is a representation of the network: 192.168.1.101 192.168.1.102 ...
1
vote
2answers
3k views

Pfsense: Inbound Load Balancing https with sticky connection

first of all I'm very sorry for my English... This is my scenario: Internet Firewall+LB: pfsense_1(Active) + pfsense_2(Passive) in CARP Pool servers: 3 x nginx(PHP5+HTTP+HTTPS) Pfsense 1 and 2 ...
-1
votes
1answer
21 views

CentOS cant grow partition

I have the following problem: I have a CentOS 7 VM virtualized by Hyper-V. Initially the Disk was about 200GB since it was only used as a MailServer. Now I'm running low on available diskspace and I ...
0
votes
1answer
939 views

Why is rails application always running in development mode?

I created rails application, and everything appears to be working fine, but I can't seem to figure out how to run the application in production mode. I specified in the example.com.conf (Apache ...
0
votes
1answer
2k views

Allow vsftpd user to upload only to a single directory

I need to allow broad anonymous download access via vsftpd, but restrict uploads to only a single path. Is there any way to do this is other than with the filesystem permissions? There are two main ...
-1
votes
1answer
17 views

Outlook Express emails disappeared - can I get them back?

A user opens his Outlook Express 6 (all windows updates up to date) this morning and finds that his inbox is empty. 200-odd messages that were there yesterday have disappeared. I have checked that ...
-4
votes
2answers
43 views

Potential of a server [duplicate]

I was wondering, if I use an old home machine as a server - how many connections will I be actually able to support. I was able to calculate the connection's capabilities myself as it is quite simple. ...
1
vote
2answers
1k views

xen server 6.2: lost a VM when moving?

I have three servers in a HA group (Xen 6.2). I've been doing some firmware updates which require rebooting so I've been shuffling VMs around to minimize disruption. One of the VMs seems to have ...
-1
votes
0answers
11 views

Memory Usage percentage in Task Manager

lets say i have a windows server with 48GB RAM and SQL installed in it, if the total memory in use is 24GB and SQL usage is 12GB, the percentage memory used by SQL is 50% or 25%...
0
votes
2answers
15 views

Is it necessary to use nginx server to use with tomcat

Is it necessary to install nginx server before using apache tomcat. Can we use only apache tomcat is there any pros cons which choice is better and why. I am using fedora 22 for deploying my ...

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