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  • Can't detect hard drive on Macbook Pro

    - by MartinMoizard
    I changed a few month ago the config of my Macbook Pro with the following: I bought a SSD hard drive I removed the hard drive of my Mac book Pro and installed there my brand new SSD Then I removed my DVD drive and installed my hold hard drive instead with a caddy Everything was working great until today when I couldn't access anymore to my old hard drive because it is not detected anymore. Sometimes Mac OSX is mounting it but it takes like 15 min to browse a simple folder. I opened my laptop to have a look at the problem. It seemed like the optical drive connector was not plugged correctly to the motherboard (that connector: http://cl.ly/2T0X2e1j0J1g47061d1t). So I plugged it correctly and reboot. It didn't fix my problem. Then I tried to put my SSD in the caddy and to boot: no hard drive was detected. So I guess there is something wrong either with the caddy, either with the optical drive connector, or either with the plug that is on the motherboard. So my question is, how can I know where the problem comes from?

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  • My PC suddenly doesn't detect the primary drive (SSD)

    - by smoth190
    My computer has been working fine for months, and it worked today, but tonight I went to start it up to find that my OCZ Vertex 2 isn't being found. When I turn on my computer, the loading screen gets stuck at "Detecting IDE drives...". After a while, it keeps going and lists the drives it finds. The first one in the list should be my Vertex 2, but it just says "None". The computer proceeds to get stuck on "Loading operating system...", which is understandable because the drive with the OS is "gone". My first thought was drive failure, but every time drives have crashed on me, they're still detected--they just don't work. This drive is an SSD, it's pretty new, and I had no problems beforehand. I find it hard to believe it failed. I'm sure it's possible, but I hope this isn't the case. There has been nothing strange going on at all with my PC, it's been running perfect until now. I was just about to do my monthly dskchk and defrag today. I popped in my Windows 7 Home Premium disk and booted from it. When I launched the repair tool, it didn't list any operating systems (because the drive is 100% missing...). When I've had disks crash before, it still listed the OS, you just couldn't do anything with it. I tried to restore from an image, but I don't have any of those, either. I opened the command console and listed the drivers with wmic logicaldisk get name. Only C: and D: came up. C: was my 1TB storage driver (luckily, all my stuff is here--only the OS is on the SSD!) and D: was the disk driver. So I still had an MIA drive... The SSD didn't come with any driver disks, so I can't install drivers. If there's a way to do this from a CD I can burn with my other PC, please let me know. What the heck do I do? Although only the OS is on my SSD, a new SSD is expensive. I'll probably also have to buy a new copy of Windows (an upgrade would be nice, though...) because I've found it eats my registration key when my PC crashes (and my thousands of dollars of Adobe programs, I'll be on the phone with tech support for a week to get those keys back). And I'll lose my registry, all my settings, all sorts of other stuff that I'll spend weeks restoring. My computer is a pain in the butt to take out and open up, so if I can't fix it, I'll try fiddling with the plug or putting it into a new computer, but not right now. Any help is greatly appreciated! The day when they make crash-less drives will be the day I live without worry.

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  • monitoring service to detect when email is not received

    - by DGM
    I would like to monitor an email server - not whether the port is open and receiving, but rather that a "canary" message sent every so often actually arrives somewhere else. I have had a problem with a server getting firewalled off and no one noticing that cron jobs are not coming from the machine for a few weeks. Of course, the machine itself cannot send out a notification if it is having problems, so this requires an outside service. Any ideas?

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  • PAM module for authentication by IP or other password-disabling module

    - by Robin Rosenberg
    I'm looking for a Linux pam module that accepts any password for connections from a specific IP. I don't want to disable passwords completely. I need it for migration from one imap server to another (cyrus to zimbra) without knowing every password. I used such a module some six years ago. That was for imap migration too. Unfortunately I cannot recall the name of the module and can't find it by other means either. Any pointers?

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  • can i use an ip-list include file for iptable blacklisting

    - by rubo77
    I would like to block all countries except mine in iptables, that is a lits with about 100.000 Entries. how can i define this blacklistfile in a script, so iptables blocks all those ip-ranges? maybe i can use http://www.ipdeny.com/ipblocks/data/countries/ that provides lists in the form 117.55.192.0/20 117.104.224.0/21 119.59.80.0/21 121.100.48.0/21 ... i want to be able to change the blacklistfile easily without having to change the iptables-script

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  • What is the network address (x.x.x.0) used for?

    - by Shtééf
    It appears to be common practice to not use the first address in a subnet, that is the IP 192.168.0.0/24, or a more exotic example would be 172.20.20.64/29. The ipcalc tool I frequently use follows the same practice: $ ipcalc -n -b 172.20.20.64/29 Address: 172.20.20.64 Netmask: 255.255.255.248 = 29 Wildcard: 0.0.0.7 => Network: 172.20.20.64/29 HostMin: 172.20.20.65 HostMax: 172.20.20.70 Broadcast: 172.20.20.71 Hosts/Net: 6 Class B, Private Internet But why is that HostMin is not simply 64 in this case? The 64 address is a valid address, right? And whatever the answer, does the same apply to IPv6? Perhaps slightly related: it also appears possible to use a TCP port 0 and an UDP port 0. Are these valid or used anywhere?

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  • How to reply some request from which routes its came from?

    - by tacoen
    I wonder if we can reply some request from which route its came from? My Situation is like this: eth0 192.168.10.1 --> gw: 192.168.10.254 nm: 24 eth1 192.168.11.1 --> gw: 192.168.11.254 nm: 24 Since this two IP is on the same machine, normally when we ping to 192.168.11.1 from 192.168.10.2. This machine will not reply to 192.168.10.2 because 192.168.10.0/24 it's on eth0, and the packets where requested via eth1. Can I make it works? I'm using Linux ubuntu, and the application will be listen to eth1 only.

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  • How does Windows 7 detect my switches?

    - by Daniel
    I notices in the Network overview of Windows 7 that my switches are found on the path to the gateway, which baffled me completely. The last time I checked they just took the ethernet packages and transported them to the "right" location. How does this switch detection work? Do switches alter the packages? Do they react on ICMP messages?

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  • USB Drive cannot detect in Windows 7

    - by Perdana Putra
    Have you ever plugged in a USB drive or any external device with a hard drive and wondered why you cannot see it in My Computer? I often have, I believe my USB is not broke .. because if I plugin the USB to another computer could be seen / detected. I tried following this tutorial http://www.howtogeek.com/howto/22251/find-your-missing-usb-drive-in-windows-7-vista/ but I am afraid of going wrong, and caused my data is lost. is there any easy way around this problem? many thank's for your attentions Guys ..

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  • How to make all of my IPs works in HyperVM XEN?

    - by user758667
    I've installed HyperVM on CentOS 5.8 final to make XEN VPS. I have 5 IPs, and added them to an IPPool. They are from *.123 to *.126. But when I add Virtual machines, just the first one (which indicate to *.123 ip) works well. I mean I can ssh to it by "works well" and when I want ssh to the other ones ( *.124 *.125 ...) it says : ssh: connect to host *.124 port 22: Connection timed out after a while. I alos set gateway and netmask as it shows in my server IPAdresses for device eth0 (it doesn't make any difference if I set these or not, I get same error). What should I do now? Thanks.

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  • Change ISP and MX static ip but no mail

    - by Tim the Enchanter
    We have recently changed our ISP, I have changed the MX record for our domain name to point to the new external static IP address for the router on the new ISP's connexion but I am not getting any mail (though sending works). Do I just have to wait will the change propagates? I am slightly concerned because I can connect to the web email service made visible through the new router, but not actually receive email. Have I missed something?

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  • How can I have two web roots on one server, so I can point two domains to two different roots?

    - by Daniel F. Dietzel
    I usually ask my n00b questions on Stack Exchange, but now I'm setting up a VPS and have a question. My usual site.com points to my VPS's IP xxx.xxx.xxx.xxx. Now I have a different domain, and I'd like to point that to another location, say xxx.xxx.xxx.xxx/myname. However, when I try to add that as an "A" record in the DNS settings it won't let me. FYI I'm using chicagovps.net with ubuntu 11.10 and Nginx. Thanks!

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  • Is it possible to add a WiFi HotSpot to an already established LAN, keep the two separate, and not modify the primary router?

    - by user12844
    I have a set up where my Cisco ASA is sitting in one facility, providing access to the Internet for two buildings. The two buildings are geographically separated by a Wireless Bridge spanning about 10 miles. All computers and equipment inside the LAN are on the same subnet (its pretty small) and we have WiFi AP's in both locations providing Wired and Wireless access to the LAN. Given all the BYOD (Ipods, and SmartPhones etc...) coming into the office as well as Visiting reps etc... we would like to also provide a non-secure, device independent (the devices cannot see or communicate with each other), and LAN independent (the devices cannot see or use anything on the LAN) HotSpot that anyone could use for their Devices that gives them access to the Internet ONLY without needing a password. I get that this could be possible at the facility with my Cisco if I messed with it and created VLANs etc... but then I would need to get it across my Bridge as well and don't think that would be possible without serious reconfiguration of everything. Would really like some kind of magic drop in solution that can kind of piggy back on my LAN without really needing to do very many if any changes to the current set up.

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  • VPN says connected but cannot ping tunnel ip

    - by Owl
    I have a VPN set up on a Symantec Gateway 320 and the status of the VPN is connected but the feature it provides is not working which means it is not actually connected..The only way to test it other than trying to use it in the program that utilizes it is to ping the remote subnet IP we use. mask numbers match, no settings have been changed it just stopped working.

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  • Error when trying to access Shared files from iMac [closed]

    - by SatheeshJM
    I used to access all my Windows XP shared files on my Mac using Finder -- Window -- Connect to server. Now all of a sudden, an error crops up when I try to connect. I get the error "There was a problem connecting to the server "192.168.1.*" The server may not exist or it is unavailable at this time. Check the server name or IP address, check your internet connection and then try again. How can I remove this error and access my shared files from my Mac? P.S my network connections is fine.

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  • Practical way to implement prevention of IP Spoofing

    - by user1369975
    I am an undergraduate Computer Science student and was hoping to gain some knowledge of ways to help prevent IP spoofing but all the resources I have tried out elaborate this concept in a theoretical way. I want to try out my hands at one of the techniques like: http://en.wikipedia.org/wiki/Port_knocking http://en.wikipedia.org/wiki/SYN_cookies How do I simulate this whole situation in my own system were I myself am the attacker and I myself have to defend it? And once I have gained an understanding of it, then how do I start translating that into programming terms?

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  • apache: bypass authentication for a specific ip

    - by Tevez G
    In Apache I have set basic authentication for /protected location. Now i need to bypass authetication for a specific ip address but keep auth for others intact. Can anyone guide me on this one. Here is my current snippet of auth protected location. Location "/protected" Order allow,deny Allow from all AuthName "Protected folder" AuthType Basic AuthUserFile /etc/htpasswd require valid-user /Location

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  • Mac has IP address, can connect to router but can't connect outside

    - by partition
    Weird problem, my MacBook can't connect anywhere right now! The router works, it gets an IP, it can log into to the router but it can't resolve anything! The router works as I connected another device to it and it connected to the net. The MacBook doesn't have any strange DNS configurations either, just 192.168.1.1 for the router I even tried tethering it to my phone, and it still would not connect to the net... help?

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  • Howto detect fake RAM

    - by Michael
    I just bought a virtual server which should have 2GB of RAM. Now i got a server with 4gb which looks very strange to me. I think it is just a virtual RAM. dmidecode only ouputs /dev/mem: Operation not permitted How can i check if it's a real RAM or just a virtual one? free -m outputs: total used free shared buffers cached Mem: 4093 364 3728 0 0 346 -/+ buffers/cache: 18 4074 Swap: 0 0 0 Output from cat /proc/user_beancounters Version: 2.5 uid resource held maxheld barrier limit failcnt 137: kmemsize 8922287 10194944 2145910784 2145910784 0 lockedpages 0 0 523904 523904 0 privvmpages 13387 59112 9223372036854775807 9223372036854775807 0 shmpages 769 785 9223372036854775807 9223372036854775807 0 dummy 0 0 9223372036854775807 9223372036854775807 0 numproc 22 54 9223372036854775807 9223372036854775807 0 physpages 93377 106010 0 1047808 0 vmguarpages 0 0 9223372036854775807 9223372036854775807 0 oomguarpages 2471 2473 9223372036854775807 9223372036854775807 0 numtcpsock 5 21 9223372036854775807 9223372036854775807 0 numflock 4 13 9223372036854775807 9223372036854775807 0 numpty 1 1 9223372036854775807 9223372036854775807 0 numsiginfo 0 39 9223372036854775807 9223372036854775807 0 tcpsndbuf 102592 381632 9223372036854775807 9223372036854775807 0 tcprcvbuf 81920 4820184 9223372036854775807 9223372036854775807 0 othersockbuf 4624 61632 9223372036854775807 9223372036854775807 0 dgramrcvbuf 0 9248 9223372036854775807 9223372036854775807 0 numothersock 39 56 9223372036854775807 9223372036854775807 0 dcachesize 4178917 4232732 1072955392 1072955392 0 numfile 378 535 9223372036854775807 9223372036854775807 0 dummy 0 0 9223372036854775807 9223372036854775807 0 dummy 0 0 9223372036854775807 9223372036854775807 0 dummy 0 0 9223372036854775807 9223372036854775807 0 numiptent 24 24 9223372036854775807 9223372036854775807 0

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