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 -- anywhere anywhere state RELATED,ESTABLISHED ACCEPT all -- anywhere anywhere ACCEPT tcp -- anywhere anywhere tcp dpt...

I am ruing 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 sessions). I could set the files/folder to inherit permissions of 777. This is fine for a development server I suppose, but I would like to do this the right way, not just the fast way. What permissions...

I have .mkv file with list of embedded subtitles. I don't have any subtitles files in the folder, they're all already in the file. So, i need to display 2 of them simultaneously: e.g. english as 1st, main subtitles, and russian as 2nd. For this purpose i use KMPlayer 4.1.1.5. Problem is only with 2nd subs. I'm able to choose main subtitles: when i choose RMB -> Subtitles -> Subtitles languages, i can see list of all the embedded subtitles, it works well. But for 2nd subtitles i'm only able to open subtitles from subs file, not from the list: there is no list at all for second subs. Of course, i can just download a separete subtitles file, but if i already have subs in video file, i wan...

I have a home network built around an ancient computer that I've tued into a router, ruing 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 ruing CyanogenMod 12.1 (equivalent to Android 5.1). This device can coect to my wireless network, but most network operations (e.g. downloading things) result in timeouts, requiring retries. Fetching emails over IMAP is particularly terrible, almost invariably resulting in timeout exceptions. If a coection succeeds, it's fast, but getting the coection to succeed is problematic. It is only on this network that I'm...

I have been trying to deploy an OVA to AWS. And came across a strange problem. AWS looks for file with name 'grub.conf' in all partitions and doesn't deploy OVA if multiple files exist with name 'grub.conf' in any location. It shows something like this: { "Status": "deleted", "SnapshotDetails": [ { "UserBucket": { "S3Bucket": "bucket", "S3Key": "dir/aws.ova" }, "DiskImageSize": 29947222016.0, "Format": "VMDK" } ], "Description": "grub test1", "StatusMessage": "ClientError: Multiple different grub/menu.lst files found ["...

I have Aspire E5-571G-55ST laptop and tools like CPU-Z and Speccy show that I have 2/4 slots used... Even Windows Task Manager shows that I'm only using 2/4 slots... But when I opened up the laptop to put in 2 RAM's in the 2 leftover slots, I found out that the motherboard has only 2 physical slots, or I'm not seeing good??? The motherboard is: Acer EA50_HB Chipset is: Intel Haswell-ULT rev. 0B South bridge: H8x/P8x rev. C1 Bios: Insyde corp. v 1.32 Can someone help me out to figure this out? Does it have 2 or 4 slots? Edit: Here are the pictures: If you guys would agree, I think tools like Speccy & CPU-Z can indeed make a mistake... But it shows I have 4 slots on Windows's task manage...

I am trying to setup an OpenVPN server on my desktop that I will coect to on my laptop (both ruing 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 recognized as an inteal or exteal command, operable program or batch file" error. Is there something else i'm missing or need to install? Let's block ads! بخوانید...

When iPhone is plugged in computer ruing 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...

I have a permission issue that is driving me crazy. I am trying to monitor asterisk on an arch linux virtual machine, using the plugin "check_asterisk_peers". I have installed NRPE (the Nagios remote agent). The relevant section of nrpe.cfg is: command[check_users]=/usr/lib/monitoring-plugins/check_users -w 5 -c 10 command[check_asterisk_peers]=/usr/lib/monitoring-plugins/check_asterisk_peers -p monika_gigaset Here is what I am getting: /usr/lib/monitoring-plugins/check_nrpe -H 10.10.10.10 -c check_users USERS OK - 2 users currently logged in |users=2;5;10;0 Now, this tells me that the NRPE is working all right, and all permissions are set correctly. If I simply run the plugin (without...

I am trying to get an excel spreadsheet to update when a document is inserted into a file. For example I have a folder called day diary. Every few days I will insert a word document or PDF document into this folder. I would like for the excel spreadsheet to acknowledge that a document has been put in the file. Is this possible? VBA welcome, however I have no experience in it. (Willing to lea a bit) Thanks for your time! Let's block ads! بخوانید...

I have a server that I ssh into all the time. I have ssh keys set up, but I'm noticing a strange behavior with video files that I'm trying to edit with VLC. As most know, with a program like Thunar, you can open individual files with VLC by double clicking in Thunar and you can also drag a selection of files onto a ruing instance of VLC to add them to a playlist on the fly. This works as expected with local files on the localhost. However, when browsing the remote server with Thunar, I'm able to open individual files with VLC by double clicking a single file, no problem...But, when I try to drag and drop a bunch of files into a ruing instance of VLC, I get a prompt that reads: Please enter ...

I recently used resource hacker to change my default folder icon. Unfortunately, now my file folder icon is missing. Does anyone have any ideas on how to get these back? ...

Issue I'm following this great how-to and all goes well until packer needs to shutdown the newly provisioned which fails with Caot 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 Capitan 10.11.5 VirtualBox - 5.1.2 r108956 Packer - 0.10.1 Boxstarter - Current Master (last commit eb1cd9f86a2a8b1ee54cc14cc2c23ace93e01b96) Log 2016/07/26 15:33:26 ui: ==> virtualbox-iso: Unregistering...

Its doing it while I write here now. My only way around it is to hit ctrl,alt,del. call up the task manager and hit cancel over and over again until the the black screen goes back to my active page and the cursor starts to blink. I thought it was my firefox browser so I tried reset and eliminating addons no change. I changed browser to Google Chrome same thing only it comes back quicker on chrome. I only have to do the ctrl,alt,del cancel thing a couple of times. On firefox it might take a dozen times and then only work for a few characters and hang again. I have a windows 7 system with lots of memory using a 250gb ssd drive. am at my wits end. need some good clues to sleuth this out. Let's ...

I have a very strange behavior that I would like to understand on my home network. Sometimes I lost coection to outside (request timeout on ping 8.8.8.8 for few minutes) but I don't loose coection on already made link. For example I can have a google hangout call that will not drop but during this call I will see request timeout on 8.8.8.8 for few minutes. When I do an mrt and the coection drop. It drops on nearly all points. Coection seems to drop right after the router at home. Packets Pings Host Loss% Snt Last Avg Best Wrst StDev 1. 192.168.0.1 13.3% 807 1.9 3.4 1.3 74.3 5.4 2. 10.**.***.1 13.3% 807 7.6 10.9 6.8 143.2 9.7 3. 213-245-254-201.rev.numericable.fr 13.4% 807 7.9 12.1 7.0 182.9 ...

Since client transparency and certificate logs are widely in use now, can I, as a site owner, somehow subscribe to one of the certificate logs and get notified when a certificate for one of my domains gets issued by a CA? ...

I have a computer with built-in WLAN, and it just can't get any IP from the DHCP when using that adaptor. The signal strength and quality is excellent. Using the LAN adaptor or a USB-WiFi adaptor works just fine. To eliminate the router being the cause, I tried making a hotspot on my mobile phone, and the same behaviour repeats itself there: it coects without problems, but it doesn't get an IP from the DHCP server. So I suspect it's the driver for the built-in WiFi adaptor that needs updating. The computer is ruing the latest version of Windows 10 Pro x64 (downloaded+installed yesterday). The motherboard is: Asus M4A88T-I Deluxe. It's about 5 years old, but has only been in use for about 1 y...

I don't recall an account being locked when the user forgot to change the password before the deadline (I know this happens a lot in hardened Linux servers though). In case you it really did happen, assuming you have domain administrator access, you can: Login your domain controller as domain admin Open up "Active Directory Users and Computers" Go to "Users" Find the user account, right click and open "Properties" Browse to the "Accounts" tab and tick "Unlock account" This should unlock the account and when the user tries to login again (via console or Remote Desktop), Windows should prompt a password change. Let's block ads! بخوانید...

I've recently run into an issue in using FFMPEG's 'force_style' filter. Adding subtitles by themselves works just fine, but when force_style parameters are included, I get "Option 'force_style' not found." Here's the input: ffmpeg -i (input.mp4) -vf "subtitles=(input.srt):force_style='FontSize=20,BorderStyle=3'" (output.mp4) Historically, this has worked on this machine and continues to work on others in the office (and seems to be independent of version). (File) matched with its srt Commencing ffmpeg closed captioning command... ffmpeg version 2.3.3 Copyright (c) 2000-2014 the FFmpeg developers built on Jan 11 2016 11:12:29 with Apple LLVM version 6.0 (clang-600.0.57) (based on LLVM 3.5svn...

I have 16G ram and 2T hard drive, then added 120G Samsung SSD as new boot C: (had shop do it) and 2 things happened. The performance was much better for Win boot, but sometimes on opening a drive or a directory that green bar that paints on top of the box would take a minute maybe even 4 mins to slowly paint. Other times no issue at all, fast. At the same time Search all of a sudden would miss both files and directories that were actually there. Think the 2 are related.Image Of Slow Green Bar Anyone have same issue, whether relate to or not a SSD addition? Any thoughts on a solution? Took it back to shop twice, they could not figure it out, besides the fact they set directories to "Videos" f...