Recent Questions

My Postfix server was working fine until last days but now, I can't receive emails from outside (I mean with an email of different domain name like gmail for example). I must make notice that I can send email from the server to gmail. From what I have seen, I think that issue may be my iptables rules : # iptables -L Chain INPUT (policy DROP) target prot opt source destination ACCEPT tcp -- anywhere anywhere tcp dpt:ssh ACCEPT all -- ...

I am running Ubuntu 16.04 LTS and am using Vagrant to run a Ubuntu 14.04 Server with a LAMP stack setup. I am working on a Laravel 5.2 project, but constantly have issues with the permissions in the storage folder/sub-folders. Currently, the folders are owned by my user/group. Anytime some file needs to be created or written too, I get a permission denied error. I can fix this with by chmoding the files to 777. This however does't fix the issue of having the problem when a new file is made (for ...

I have a home network built around an ancient computer that I've tued into a router, running Debian Wheezy. The wireless part is based on a TP-LINK TL-WN851ND PCI card on the hardware side, and uses hostapd on the software side. Now, I have recently obtained a new phone, on which I am running CyanogenMod 12.1 (equivalent to Android 5.1). This device can connect to my wireless network, but most network operations (e.g. downloading things) result in timeouts, requiring retries. Fetching emails ove...

I am trying to setup an OpenVPN server on my desktop that I will connect to on my laptop (both running windows 8.1 64-bit, with the 64-bit versions of OpenVPN installed). The setup procedure calls for the easy-rsa package, which is no longer included with OpenVPN, but is available separately. I have installed easy-rsa version 3.0.1. The first step in the setup is to run "init-config" in command prompt in the directory "C:Program FilesOpenVPNeasy-rsa", but it fails, giving me the typical "not rec...

When iPhone is plugged in computer running Windows 10 it starts installing drivers. Windows doesn't show UAC screen, or user permission to install drivers. Sure, it is convenient, but what is the security model here? Does it mean that any usb stick can silently gain permission for arbitrary code execution? Or this usb stick would needs a signed certificate to do so? Let's block ads! بخوانید...

Issue I'm following this great how-to and all goes well until packer needs to shutdown the newly provisioned which fails with Cannot unregister the machine 'packer-virtualbox-iso-1469510168' while it is locked. See full log below at the end of this question. I've done the following Check no stale VirtualBox VMs are left around with that name (all clear) Update VirtualBox to latest available (5.1.2 r108956) Reboot my host computer but this consistently happens. Environment Host OS - OS X El Capit...

Is there a relation between a data compression format (zip, gzip, bzip2, etc.) and it's ability to ease in recovering broken data? I want to store some backups (like tar.gzs) but then I started wondering what could happen if the archive somehow becomes corrupt, like when changing a single bit randomly. Will the entire file become useless or are there mechanisms to minimize damage? Most information I find is purely about storage efficiency and they never seem to mention possible corruptions... Le...

Not a single advice i have came across helped me so far, you are my only hope guys. I registered a free certificate from startssl, and tried to install it on my postfix server. OpenSSL confirms that my private key matches the certificate, unencrypted key is chowned by Postfix user, and all other files are loading pretty well. However, whenever I either send mail, receive mail, or connect through telnet i get message in logs saying cannot get RSA private key from file /etc/postfi/ssl/mydomain.ke...

I am running two HD 7970s in crossfire on my windows 10 rig. Through afterbuer I can see that both cards are working in tandem when bench marking and in most games. However, I have noticed in a few games, Skyrim mainly, that only the master is utilized when playing. The slave card usage does jump up a little bit when first loading different areas, however, it quickly drops back to zero and stays there. Are there some games that just can't use crossfire? Is there some setting I am unaware of? Le...

Have a mostly Ruckus AP wifi environment outside the US. Having issues with our Motorola ET1 staying connected after going to sleep, (we have similar setup in other Ruckus environments with no issues). Comparing this environment with a similar Ruckus setup without the wifi drop issues, a network engineer suggested that maybe enabling 802.11d on the switches could help. Could having a US device with 802.11d enabled, on a network with 802.11d disabled cause connectivity issues? If so, could you ex...

Yesterday i encountered INACCESSIBLE_BOOT_DEVICE blue screen error So i performed a clean install(Formated c drive and reinstalled os) then today When i start my pc it shows Recovery error Try again shows same error f8 does do anything screen blinks and same screen come back So i created Windows Bootable Media to repair or Reinstall windows But after loading files screen goes black and nothing shows up... Same for booting in safe mode , low resolution mode. How can i fix this? Let's block ads!...

First diagnostics showed the following error: windows socket registry entries missing Then I have removed the registry entries and reinstalled them by downloading and ran the following command: netsh winsock reset Now, the diagnostics shows different error: The device or resource (oucgwsmb.emea.nsn-net.net) is not set up to accept connections on port "The File and printer sharing (SMB)". The samba logs shows this: [2016/06/20 11:30:22.551172, 2]smbd/sesssetup.c:1413(setup_new_vc_session)...

I downloaded the iso image of Linux mint 17.1 cinnamon and then bued it to a dvd.I get this strange message from VMware player. Even when I instead use the iso image itself instead of the dvd,I get the same message.Link to the message displayed ...

I exported a Google Slides presentation to Powerpoint (pptx). I then opened it using Microsoft Powerpoint Viewer. Unfortunately, the line spacing of the text boxes appear too spaced out. I didn't define a spacing, I used the default 1.15. My font is Tahoma 18-20. Changing the line spacing/font or setting a custom line-spacing has no affect on the text when opened in Microsoft Powerpoint presentation. Upon further instigation, it appears that bullets from lists have gone as well. This leads me to...

So, I've got a mother in law who loves word perfect 11. Eleven shall be the version of WP, and the version of WP shall be eleven. Do not continue to WP12, and WPX3 is right out. Unfortunatly, since WP11 is 20+ years old, it's a miracle it's run with current operating systems. It runs fine on win7 with xp-sp3 compatibility as administrator, but in win10 with the same settings it fails. Is there a way to diagnose this? Let's block ads! بخوانید...

I have a RT-AC68P Router That i am trying to port forward Port 28015 in order to host a server for a game called rust. Form some reason the port WILL NOT open no matter what i do i have been working on this for days. so far i have configed my router to open the port and tued off all firewalls that could possibly be in my way on all the computers as well as on the router its self. so i thought just for fun lets plug my computer right into the modem and see if the ports are even open without the r...

Configuration Asus P8H67-V (Socket 1155) Intel Core I5-2500K Samsung 840 Pro SSD Samsung 850 Evo SSD Multiple WD Red (>=2TB) 2 x Zotac Geforce GTX 660 BIOS set to AHCI for boot Boot devices for Setup: Exteal DVD/BR Drive using a verified Win7_x64 Disc (worked on other machines including the current setup in IDE Mode) Samsung USB Stick (128GB, 8GB Partition for Win10_x64) Problemset Have been running on the 850 Evo for a while using Elementary OS (debian). Tried to install Windows on 840 Pro ...

So, I run a TightVNC Server (2.7.3) on a Windows 10 machine with the follow specs: i5 8Gb RAM DDR3 1TB HDD (No RAID) Intel HD 6000 Integ Graphics I run the client java viewer supplied by TightVNC on a Windows 7 machine Intel ATOM 2Gb RAM (DDR?) 250Gb HDD (No RAID) Intel Mobile Graphics Accelerator When connected (with and without SSH) to the remote machine from the win7 device, the remote screen will refresh rapidly to the point of unusability. Does anyone know what could be causing this (and ho...

I need all the body of incoming and outgoing messages are written to the log file. How to setup Postfix to do that? ...

Just for completion purpose, here's the info in detail again (as is in title): I'm running Ubuntu 16.04 on server hardware; 2 x NICs (enp4s0f0 (AKA first), enp4s0f1 (AKA second); 10.0.0.10, 10.0.0.11 respectively) are connected to Technicolor TC8305C wireless router/gateway (rented from and connected to Comcast cable Inteet) I need following ports to be reached via the Inteet (to run a 7D2D game server): 26600 (TCP & UDP), 26601 - 26603 (UDP) and 27000 - 27099 (UDP) to one of the server's NI...