Greatest Hits

3
votes
1answer
3k 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 ~]# ...
0
votes
2answers
7k views

Domain User Account Locks: Correct password used

I have a domain (DC is running Windows Server 2008 R2) and have the Account Lockout Policy enabled. When a user attempts to log into their PC (with the correct password) they receive the following ...
1
vote
1answer
5k views

Postfix and OpenSSL: “Unable to get local issuer certificate”

I bought a certicifate for my mail server and configured it in Postfix like so: smtpd_tls_security_level=may smtpd_tls_CAfile = /etc/ssl/certs/ca-certificates.crt smtpd_tls_cert_file = ...
0
votes
2answers
8k views

Nginx: location regex for multiple paths with backend

I have two locations in nginx config that work: location ^~ /media/ { proxy_pass http://backend.example.com; } location ^~ /static/ { proxy_pass http://backend.example.com; } How can I combine ...
2
votes
1answer
10k views

Why is Apache returning Service Temporarily Unavailable on local host?

Ok so I am a bit new at all this. I was trying to get php and apache2 running on my localhost and I don't seem to be able to get it to work. I keep getting this message when inputting localhost into ...
0
votes
2answers
4k 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 ...
1
vote
1answer
5k views

iptables port forwarding (prerouting port 80) and firewall not working together

I have read many articles and answers on this topic and I have been in discussion with Linode support, but no one seems to be able to answer my exact problem. Seems easy - I'd like to use a iptables ...
1
vote
1answer
4k views

“CHECK_NRPE: Socket timeout after 10 seconds” HTTPS / SSL

I have configured NAGIOS server on IP address AA.BB.CC.DD (Linux Fedora 20), and Monitoring the host with IP address LL.MM.NN.OO (Linux Fedora 20). I have configured NRPE to run on port # 15666 ...
2
votes
2answers
3k views

HAProxy with SSL and sticky sessions

We're trying to set up HAProxy (v1.5.1) to use SSL. While we managed to do that, we're having some issues with the round robin settings: We do want to have stick sessions, but haproxy seems to send ...
0
votes
1answer
3k views

Apache localhost 403 error with Yosemite

I've just installed Mac OS X Yosemite fresh. I configured Apache and chmodded "users/user/Sites" to 755. When I hit localhost I receive a 403 Forbidden "You don't have permission to access / on this ...
0
votes
3answers
34k views

OpenVPN: TLS Error: TLS key negotiation failed to occur within 60 seconds

The http://openvpn.net/index.php/open-source/documentation/howto.html page tells that the error is beacuse: "This error indicates that the client was unable to establish a network connection with the ...
0
votes
2answers
3k views

MySQL remote connection - Access denied for user 'username'@'localhost' (using password: YES)

I am setting up a remote connection to a MySQL server but no matter what I try I am getting access denied error from the remote server. I added the user by: CREATE USER ...
2
2
votes
2answers
16k views

Converting .cer to .pem?

I have zero knowledge on certificates . I searched on internet and found few , but none of them helped me in my case. I am on Red Hat Enterprise Linux ES release 4 (Nahant Update 9) I am trying to ...
0
votes
4answers
9k views

Fortigate bandwidth monitoring

I have a Fortigate 200B with Forti OS 5.0. How can I watch the total bandwidth being used by my unit both incoming and outgoing? Thanks
2
votes
3answers
37k views

AVG offline install

Is it possible to install AVG antivirus (the free version) offline? If so where would I go on their site to download that?
0
votes
1answer
13k views

nginx server directive is not allowed here

I know there are dupes of this out there, but I can't seem to solve this in my situation. I'm following this article on setting up nginx as reverse proxy with apache. And I get this error: nginx: ...
4
votes
0answers
7k views

Configure Squid as an HTTPS forward proxy?

Here's some background about my problem: I have a web service running on Heroku, with a dynamic IP address. Static IPs on Heroku are not an option. I need to connect to an external web service which ...
4
votes
5answers
14k views

SMTP Reverse DNS Mismatch

My dedicated server ns382087.ovh.net resolves to 46.105.98.72 and hosts multiple domain with several dedicated IP addresses. Each new IP address is added to /etc/network/interfaces Among them, the ...
4
votes
2answers
6k views

your security settings have blocked a self-signed application from running

I'm trying to use Integrated Lights-Out 2 (aka iLO)'s Virtual Media (which is Java based applet) and I'm getting following error(s): Application Blocked by Security Settings Your security settings ...
5
votes
4answers
3k views

How do I configure RAID 5, especially stripe size, with 24 x 1.2 TB drives for CentOS 6?

For a Dell R920 with 24 x 1.2TB disks (and 1TB RAM), I'm looking to set up a RAID 5 configuration for fast IO. The server will be used to host KVM VMs that will be reading/writing files of all sizes, ...
0
votes
1answer
5k views

kali linux: adding the “persistence” string at boot persistently?

I just installed Kali Linux on a brand new USB 3.0 stick, and it can work with a persistence partition by adding the "persistence" string at the end of the boot command each time I want to do so. I ...
1
vote
1answer
5k views

Domain Admin cannot make changes to Windows Server 2012

In our windows domain I am the Domain Administrator. I log into my servers with my domain administrator account via Remote Desktop. Now, I just installed Windows Server 2012 and am working in it via ...
1
vote
3answers
21k views

How to tell where user account is logged in

In a windows 2003/2008 mixed domain, is it possible to find out where on the network a particular account is logged into? The account keeps getting locked out, and we think the account may be logged ...
0
votes
2answers
4k views

curl: (35) SSL connect error

Trying to make a curl https request to Twitter API and get this error. I've tried from another server and it works with no problem. Does anyone know the reason for this error? [root@webscoming ...
1
vote
3answers
8k views

How to enable remote device manager?

I have a hyper-v-server-2012-r2 Core server thats not joined to any domain. What configuration must i do on the server and client to connect with MMC \ Device Manager? I have managed to connect with ...
34
votes
3answers
3k views

Windows TCP Window Scaling Hitting plateau too early

Scenario: We have a number of Windows clients regularly uploading large files (FTP/SVN/HTTP PUT/SCP) to Linux servers that are ~100-160ms away. We have 1Gbit/s synchronous bandwidth at the office and ...
2
votes
1answer
9k views

DNS server can't resolve localhost name

I'm trying to set up an Apache server on my RHEL6.4 vm and can't because dnsmasq can't recognize the hostname for some reason: nslookup rhel64.example.com Server: xxx.xxx.xx.1 Address: ...
8
votes
2answers
22k views

How to push my own DNS server to OpenVPN?

I have defined an ubnound DNS server on my VPS and it appears to work. I need to use the DNS server instead of Public DNS IPs because some ISPs have blocked public DNS IPs. My openvpn.conf file is: ...
4
votes
2answers
6k views

Nginx + php-fpm - Each php-fpm process 70-100% cpu when running

I have a situation in which the following is taking place: We are on linode with 8-core, 8gb of ram , 2.6 ghz - using nginx + php-fpm - we are getting extremely high graphs of cpu usage (which we ...
7
votes
6answers
6k views

How should I copy my VM templates between vSphere datacenters?

Background/Environment Architecture: My current environment for $corp_overlords$ is set up in a hub-and-spoke model with a technologically well-endowed home office hub (SAN, bladecenter/bladesystem ...
1
vote
1answer
2k views

fail2ban running on CentOS 7 & getting “ssh connection refused”

Is anyone successfully running fail2ban on CentOS 7 and can tell me how to do it? I tried to install fail2ban with yum install fail2ban and run it (there are no extra rules in iptables -L which seems ...
2
votes
1answer
9k views

FastCGI sent in stderr: “Primary script unknown” while reading response header from upstream

I know this isn't a unique question, but perhaps the manifesting situation is unique. Answers found elsewhere don't match what I believe are my circumstances. I have a box hosting a few sites and, ...
4
votes
1answer
10k views

Local Group Policy not updating. RSOP and GPResult show stale data

This issue exists on a Windows 7 Pro x64 machine (Dell Inspiron E6420). I am trying to adjust a setting using gpedit.msc, but the change never seems to take effect. By that, I mean that setting that ...
-1
votes
1answer
3k views

Lost connection to MySQL server at 'reading initial communication packet', system error: 0 with windows

I found similar questions but none of them helped me with a windows machine. I originally posted this on stack overflow but it was suggested that I ask here. I was able to connect to mySQL through my ...
4
votes
4answers
12k views

Find out what high CPU usage apache process is actually doing?

Currently having a few issues with our server where, intermittently, we seem to get apache processes which just run and run, taking up 100% CPU. When running top, we see the following: PID USER ...
2
votes
1answer
6k views

nginx / php-fpm error logging

I'm trying to figure out where the PHP errors are going in my setup. I'm running nginx as the reverse proxy to PHP-FPM, but I'm not seeing the various E_NOTICE or E_WARNING messages my app is ...
7
votes
1answer
4k views

dhclient: What does “RTNETLINK answers: File exists” Mean?

I wanted to update the DHCP lease of an Amazon EC2 instance, so I executed the following command: user@host:~$ sudo dhclient Following that, the system's DHCP lease is updated successfully updated. ...
3
votes
2answers
2k views

Generating an SHA256 SSL CSR on CentOS/RHEL using genkey

The officially recommended method of generating a web server SSL certificate CSR (according to RHEL6 and CentOS 6 documentation) is to use the genkey utility. When used according to the docs, this ...
0
votes
2answers
4k views

subversion on apache - checkout failed: 405 Method Not Allowed

I try to setup subversion on an apache server. I followed this guide: [http://wiki.centos.org/HowTos/Subversion][1] If I try to checkout afterwards with Tortoise SVN a project I get the following ...
1
vote
1answer
3k views

Windows Updates not working via SCCM 2012 R2

We upgraded from SCCM 2012 SP1 on Server 2008 R2 to SCCM 2012 R2 CU2 on Server 2012 R2. Very simple site hierarchy - one site server provides MP, DP, SUP, etc. roles, and has WSUS installed (with all ...
1
vote
1answer
8k views

Adding alias to an Office 365 mailbox with dirsync

We've recently migrated to Office 365 with a new Active Directory structure and as part of this the naming convention for all the e-mail addresses has changed. This isn't a problem for most users, but ...
3
votes
2answers
8k views

Apache URL rewriting in reverse proxy

I'm deploying Apache in front of a Karaf-hosted application (Apache and Karaf are on separate servers). I want Apache to operate as a reverse proxy and also to hide part of the URL. The URL to get ...
1
vote
2answers
3k views

Buffer I/O error on device (sata drive)

I keep getting these messages in one of my servers kernel logs (which is responsible for file operations). I wonder if anybody knows how serious are these issues. I cannot use smartmontools because ...
0
votes
2answers
6k views

How to connect an ODBC DSN to nondefault SQL Server instance on default port?

We are migrating an SQL Server 2000 database on one server to SQL Server 2008 R2 on another server. The client application use a User DSN to connect directly to the SQL Server on the internet. I have ...
8
votes
1answer
5k views

Is installing a GUI on my CentOS server a good idea?

I have a new dedicated server that I'm going to create a couple of VMs on. OS will be CentOS 6.5, for the host and the VMs. Does the GUI on the host (Gnome etc) give any real benefit when it comes ...
1
vote
2answers
2k views

PBIS Open AD authentication stops working on ubuntu with errors: “user accout has expired” and “is your account locked?”

We have been using PowerBroker Identity Services Open to authenticate active directory users from ubuntu hosts successfully for six months. Recently AD authentication stopped working on several ...
1
vote
1answer
4k views

Linux Red Hat Resize VM resize2fs - Couldn't find valid filesystem superblock

I'm trying to increase the size of a Linux Red Hat Virtual Machine by 10Gig. This is just on a Test Server I created that I'm trying to figure out. I increased the VM by 10 gig with this command ...
0
votes
0answers
2k views

Remote Desktop event ID 20499. No noticeable issues

I get a warning event with ID 20499 for TerminalServices-RemoteConnectionManager.The error is: Remote Desktop Services has taken too long to load the user configuration from server ...
2
votes
3answers
6k views

Why should I need a tweak to force VMware ESXi 5 to sync time with Windows NTP server

I'm plagued by a seemingly simple but actually troublesome problem, so I ask for help here. Symptom I installed an instance of VMware ESXi 5.1 inside VMware Workstation to learn about various ESXi ...
1
vote
1answer
4k views

unusual rate of unsolicited mail originating from your IP address

On my server I redirect mail, arriving to in@example.com, to manager1@gmail.com and manager2@gmail.com with /etc/aliases file. Recently I got the following email in my my.email@gmail.com mailbox ...