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• Hard drive failed, suspected filesystem corruption, still cannot salvage any data from harddrive

  - by Hippy-Head

  Firstly, I am terribly sorry if this is a duplicate, but I couldn't find a similar issue to mine, so here goes. I have a 1TB hdd bought around 8 months ago used as backup hard drive. I have not used the drive for a period of time whatsoever, and when I was trying to get back to some files on it, it was completely wiped just like that. At first it would not boot I tried everything from command line chkdsk and filesystem recovery software to rebuilt it. After a few attempts I managed to initialize it, at that time it was an achievement. The problems started when I tried to recover the data inside, I have used A LOT of software free and commercial software on both Mac and Windows, with the help of cmd or Terminal commands, however no data of any kind was recovered, even after leaving it thoroughly scan for around 9-10 hours all night sometimes longer, with no results at all. I am somewhat desperate, I am usually good at retrieving data from corrupt hard drives, but this is not the case. Call me paranoid, but I do not want to give it to someone to fix it for me, as I have a lot of photos and personal stuff that I do not want anyone to see.

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• ipv6 port 445 does not accept the request from a global type address

  - by blacktea

  I want to scan the port 445 in windows server 2003, but my scanner only have one type ipv6 address which is global not link-local. When I do this,I find that I can't find port 445 open. But I use the command "netstat -an" to assure the port 445 is listening. Finally I find this confusing phenomenon: 1.when I set a link-local ddress in my scanner, then it will work in scanning port 445. 2.when I only set a global address in my scanner, it doed not work. This means if a host with a link-local address use socket to send a syn packet to the port 445 in server 2003, it will receive a ack packet. But if with a global address it will receive a rst packet. Thus, I can't scan the port 445 in server 2003 with a global address. I need to know why? Can anybody help? And I use the netsh-firewall to check the exception and netsh-interface-ipv6 to turn off the firewall on the specific interface. Still can't establish the connection with port 445, do you have any ideal about this ?

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• Forward all tracif from one IP to another Ip on OS X

  - by Josh

  This is related to this question I just asked... I have two IP address on my iMac I want to "bridge". I'm not sure what the proper terminology is... here's the situation. My iMac has a firewire connection to my laptop and an ethernet connection to the rest of my office. My laptop has an ip of 192.168.100.2 (on the firewire interface). My iMac has an IP of 192.168.100.1 on the firewire interface, and two IPs, 10.1.0.6 and 10.1.0.7, on it's ethernet interface. If I wanted to forward all traffic coming in from 192.168.100.2 on my OS X machine to go out on IP 10.1.0.7, and vice-versa, can this be done? I assume I would use the ipfw command. Essentially I want to "bridge" the firewire network to the ethernet network so my laptop can see all the machines on the 10.1 network, and all those machines can see my laptop at 10.1.0.7. Is this possible?

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• Linux udev persistent net rule

  - by Anonymous

  I have a Linux system (Slackware Linux 13.0) with two network interfaces. Let's call them NIC0 and NIC1 My goal is to make NIC0 to appear as eth0 in the system. I know this can be achieved via udev rules that map network aliases to MAC addresses of network interfaces. In Slackware Linux the file /etc/udev/rules.d/70-persistent-net.rules contains such rules. The trickiest part of my problem is that I need to fake the MAC address of NIC0. I know I can dynamically change the MAC addres of a network interface with the command: ifconfig eth0 hw ether <new MAC address> Do you see the problem? This supposes that the network interfaces are already set up. So my question is: If I would have an udev rule for NIC1(the one that shall go up as eth1, with its original MAC address), would it be enough for the system to bring the other network interface (NIC0) as eth0 by default? This way I could change its MAC address later, after the udev machinery completes and the network aliases are brought up.

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• How can i get more low memory with the following setup:

  - by user539484

  Modules using memory below 1 MB: Name Total = Conventional + Upper Memory -------- ---------------- ---------------- ---------------- MSDOS 14 317 (14K) 14 317 (14K) 0 (0K) HIMEM 1 120 (1K) 1 120 (1K) 0 (0K) EMM386 3 120 (3K) 3 120 (3K) 0 (0K) OAKCDROM 36 064 (35K) 36 064 (35K) 0 (0K) POWER 80 (0K) 80 (0K) 0 (0K) NLSFUNC 2 784 (3K) 2 784 (3K) 0 (0K) COMMAND 2 928 (3K) 2 928 (3K) 0 (0K) MSCDEX 15 712 (15K) 15 712 (15K) 0 (0K) SMARTDRV 30 384 (30K) 13 984 (14K) 16 400 (16K) KEYB 6 752 (7K) 6 752 (7K) 0 (0K) MOUSE 17 296 (17K) 17 296 (17K) 0 (0K) DISPLAY 8 336 (8K) 0 (0K) 8 336 (8K) SETVER 512 (1K) 0 (0K) 512 (1K) DOSKEY 4 144 (4K) 0 (0K) 4 144 (4K) POWER 4 672 (5K) 0 (0K) 4 672 (5K) Free 552 944 (540K) 539 088 (526K) 13 856 (14K) Memory Summary: Type of Memory Total = Used + Free ---------------- ---------- ---------- ---------- Conventional 653 312 114 224 539 088 Upper 47 920 34 064 13 856 Reserved 0 0 0 Extended (XMS)* 64 898 256 2 671 824 62 226 432 ---------------- ---------- ---------- ---------- Total memory 65 599 488 2 820 112 62 779 376 Total under 1 MB 701 232 148 288 552 944 Total Expanded (EMS) 33 947 648 (33 152K Free Expanded (EMS)* 33 538 048 (32 752K * EMM386 is using XMS memory to simulate EMS memory as needed. Free EMS memory may change as free XMS memory changes. Largest executable program size 538 976 (526K) Largest free upper memory block 7 488 (7K) MS-DOS is resident in the high memory area. I'm running MS-DOS 6.22 on VMWare virtual hardware. This is memory state after memmaker pass, so i'm looking for optimization beyond memmaker. Note: NLS drivers (DISPLAY, KEYB, NSLFUNC) are essential for me. Thanks to @mtone for valuable reminder about MSCDEX /E which gave me 16KiB of low memory (see the diff)!

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• Xvnc4 started from xinetd only displays empty gray X screen

  - by Scott Thomason

  Hi. I'm attempting to setup an Ubuntu 10.10 box so that anyone can connect to port 5900 and be greeted by the gdm login manager. To do so, I added a vnc entry in /etc/services and I am starting Xvnc4 using this xinetd config file: service vnc { protocol = tcp socket_type = stream wait = no user = nobody server = /usr/bin/Xvnc server_args = -geometry 1000x700 -depth 24 -broadcast -inetd -once -securitytypes None } This kind of works...I can start multiple sessions all to port 5900, and I get an X screen. The problem is that I only get an empty, gray X screen with no applications started. I know when you run vncserver from the command line it will look to your ~/.vnc/ directory for your passwd and xstartup files, and I think what I want to do is put "gnome-session" into the xstart file. However, which xstartup file? The running user is "nobody" who obviously doesn't have a ~/.vnc/ directory. I tried a /root/.vnc/xstartup file and a ~scott/.vnc/xstartup file and it doesn't look like they were even read. I changed the xinetd vnc service so that it would "strace" Xvnc4. I looked thru all the "open" lines and didn't get a clue as to what file it was trying to read for xstart. Can anyone help? I just want a terminal server where the user is presented with a gdm login screen.

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• Debugging Samba/CUPS printer sharing with Windows

  - by mrdrbob

  I've got a HP Deskjet hooked up to a Slackware 12.2 box. I've got CUPS set up and can print a test page from the box just fine. I've also got Samba set up and have a couple file shares that work fine. I'm trying to share that HP Deskjet out via Samba, but I can't get it to show up in any Windows system. I see the server and its file shares in Windows networking, but when I open the Printers, no printer shows up. Running net view \\servername from the command line lists the file shares, but no printers. Here's the pertinent part of my smb.conf, if that helps: [global] workgroup = HOMENET security = share hosts allow = 192.168.1. 192.168.2. 127. load printers = yes printcap name = cups printing = cups log file = /var/log/samba.%m max log size = 50 [printers] comment = All Printers path = /var/spool/samba browseable = no public = yes writable = no printable = yes guest only = yes Can anyone give me some pointers as to where to start looking for potential causes? Update: Running testparm shows no errors. Here's the output (minus the file shares): [global] workgroup = HOMENET security = SHARE log file = /var/log/samba.%m max log size = 50 printcap name = cups hosts allow = 192.168.1., 192.168.2., 127. [printers] comment = All Printers path = /var/spool/samba guest only = Yes guest ok = Yes printable = Yes browseable = No

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• OSX: Mimic Ubuntu IP Masquerading via iptables with ipfw

  - by Dogbert

  Good day, I am attempting to replicate a setup I have between a router and an Ubuntu PC, and have the same setup working on my MacBook (10.6, Snow Leopard). First, I have a router that has a USB port. When I plug it into my Ubuntu PC, it creates an RNDIS connection, allowing me to connect to the router over the USB cable via an IP connection. When I plug it into my computer via USB, it gets assigned an IP address of 172.16.84.1, and a new adapter appears when I type ifconfig. I can then SSH into the device via ssh [email protected]. When I log in to the device, I flush the routes, then create the default route: admin@localhost> route -f admin@localhost> route add default 172.16.84.2 Now, in my Ubuntu machine, I use iptables to enable IP masquerading: root@Valhalla> sudo iptables -t nat -A POSTROUTING -s 172.16.84.2 -j MASQUERADE Once this is all done, the router has internet access over the USB connection to my PC. I am trying to replicate this exact setup on my MacBook now (Snow Leopard), but iptables does not exist for OSX, not even a Macports version exists. I have scoured through other questions on StackOverflow that cover the usage of the ipfw command, which apparently works as a drop-in replacement for iptables. However, the syntax is significantly different, and I'm pretty much lost. Does anyone with some experience with ipfw have some suggestions on how I could accomplish this and create a NAT connection via IP masquerading like I could with my Ubuntu PC? Thank you for your assistance.

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• How to remove all Couchdb versions in Ubuntu 10.04 (server)? ( after multiple installs )

  - by DjangoRocks

  Hi all, I have done multiple installs of CouchDB using sudo aptitude install couchdb sudo ap-get install couchdb and more recently based on the instructions found at L http://wiki.apache.org/couchdb/Installing_on_Ubuntu May I know how do I uninstall or remove all the above installations? Best Regards. +++++++++++++++++++UPDATE++++++++++++++++++++++++ I've tried running the following commands: apt-get remove couchdb apt-get purge couchdb but received the following errors: (Reading database ... 39814 files and directories currently installed.) Removing couchdb ... invoke-rc.d: initscript couchdb, action "stop" failed. dpkg: error processing couchdb (--remove): subprocess installed pre-removal script returned error exit status 1 invoke-rc.d: initscript couchdb, action "start" failed. dpkg: error while cleaning up: subprocess installed post-installation script returned error exit status 1 Errors were encountered while processing: couchdb E: Sub-process /usr/bin/dpkg returned an error code (1) May I know how do i fix this? ON issuing the command : dpkg -l | grep couchdb I received the following response: rF couchdb 0.10.0-1ubuntu2 RESTful document oriented database, system D iF couchdb-bin 0.10.0-1ubuntu2 RESTful document oriented database, programs How do i uninstall CouchDB ? I think there's some file corruption?

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• Quick, Linux-compatible unit-aware calculator

  - by endolith

  I want to be able to press a keyboard combination, start typing a mathematical expression that includes units and slightly advanced math (not just a four-function calculator), and get a result immediately, in units that I specify, that I can copy and paste. Currently I open Firefox and press Ctrl+K, type in the search box, and it usually gives me a result in the drop-down from Google Calculator. It doesn't always, though, so I press "=" at the end, wait for a result, remove the equals, wait for a result, realize it doesn't understand the way I typed a unit, open the result in a new tab, etc. it sucks. Wolfram Alpha is smarter, but very much slower, and the output is all images, not text, and I don't have a quick widget for it, if such a thing could even exist. GNU units has a ton of units, which is great, and I can define my own units, which is great, but they have to be written in specific, unintuitive ways, it doesn't handle much advanced math, and I'd need to open a terminal, start units, etc. I hate the command line. I wasted a lot of time trying to make front-ends for units in Deskbar and Launchy, but I'm not a real coder and I don't use either of those anymore. Any other solutions or enhancements of these?

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• Ubuntu 10.04 Keyboard and Mouse Freezing Problem

  - by nitbuntu

  I had a partition setup with Windows XP and Ubuntu 8.04 dual booting. I recently upgraded to Ubuntu 10.04 by installing fresh from CD but leaving the previous /home folder as is. Things seemed to be working fine, but started finding that my mouse and keyboard were freezing. After a quick search on the internet, I found the following suggestions as shown here:- Ubuntu Forums Here the suggestion was to:- Edit /etc/default/grub, go to the line that begins like: GRUB_CMDLINE_LINUX_DEFAULT= Change it to: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=off" After that, run this command: sudo update-grub and Reboot This seemed to have resolved the issue but after a couple of days I again find my mouse and keyboard freezing. I also find that my parallel port printer had also stopped working. I have saved the output of dmesg and my syslog. The first can be viewed here but the syslog had too many characters, so if someone can suggest an alternative to freetexthost, I can post it there. Moreover, if there is any other information that should be provided, do let me know. I do hope we can get to the bottom of this issue. Thank you in advance for any help that could be provided.

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• no disk io but iowait very high

  - by Dan

  there is no disk io going results of iotop Total DISK READ: 0.00 B/s | Total DISK WRITE: 0.00 B/s TID PRIO USER DISK READ DISK WRITE SWAPIN IO< COMMAND 1 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % init [3] 1930 be/4 named 0.00 B/s 0.00 B/s 0.00 % 0.00 % named -u ~d/run-root 1931 be/4 named 0.00 B/s 0.00 B/s 0.00 % 0.00 % named -u ~d/run-root 1932 be/4 named 0.00 B/s 0.00 B/s 0.00 % 0.00 % named -u ~d/run-root 1933 be/4 named 0.00 B/s 0.00 B/s 0.00 % 0.00 % named -u ~d/run-root 1810 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % sh /usr/b~user=mysql 9795 be/4 apache 0.00 B/s 0.00 B/s 0.00 % 0.00 % httpd 8004 be/4 apache 0.00 B/s 0.00 B/s 0.00 % 0.00 % httpd 3226 be/4 postfix 0.00 B/s 0.00 B/s 0.00 % 0.00 % tlsmgr -l -t unix -u 8154 be/4 apache 0.00 B/s 0.00 B/s 0.00 % 0.00 % httpd 9759 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % find -name php.ini 9249 be/4 apache 0.00 B/s 0.00 B/s 0.00 % 0.00 % httpd 1756 be/4 postfix 0.00 B/s 0.00 B/s 0.00 % 0.00 % psa-pc-re~@localhost 1863 be/4 mysql 0.00 B/s 0.00 B/s 0.00 % 0.00 % mysqld --~mysql.sock 3123 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % crond 1758 be/4 postfix 0.00 B/s 0.00 B/s 0.00 % 0.00 % psa-pc-re~@localhost 1865 be/4 mysql 0.00 B/s 0.00 B/s 0.00 % 0.00 % mysqld --~mysql.sock 1592 be/4 sw-cp-se 0.00 B/s 0.00 B/s 0.00 % 0.00 % sw-cp-ser~ver/config 7612 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % sshd: root@pts/0 7614 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % sftp-server 7615 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % -bash 1602 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % sshd 8003 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % httpd but iowait very high ? iostat report avg-cpu: %user %nice %system %iowait %steal %idle 0.83 0.00 0.13 13.83 0.00 85.20 Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn server runs like a snail what could be wrong here ? thanks

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• Safe mode boot with no change on screen but ongoing hard disk activity - why?

  - by omatai

  I have a machine with a dying hard drive - bad sectors are starting to multiply :-( The first sign (24 hours ago) was that it had an unmountable boot volume. At this time, I tried booting to safe mode with command prompt, which worked, after which I rebooted normally and ran a chkdsk. It has since been working as well as I could expect, but slowly getting less reliable. So I scheduled another chkdsk on both partitions (C: - boot, D: - data), having freed up a lot of space on both partitions to give Windows a little more scope for repairs (hopefully?). I then rebooted. On reboot, it protested about the unmountable boot volume again, so I booted to safe mode. I got the same list of drivers loaded as yesterday, and then no change to the screen for the past 2 hours. However, I see a flickering hard drive indicator light - not always on, but seldom ever off. What is happening? Is the chkdsk that runs in safe mode one which produces nothing on the screen and so chkdsk could be doing its thing... or is Windows still trying (but failing) to boot into Safe Mode?

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• Start and shutdown tomcat via ssh

  - by bxshi

  Updated I find out that the path of jdk it using is wrong. eval: 1: /opt/Java/jdk1.6.0_25/jre/bin/java: not found the Java should be lower case java, how is that happen? When I run this script directly on server, it is just okay. I'm trying to start or shutdown tomcat via a remote client. On my server, I've got 3 different tomcat: tomcat1, tomcat2, and tomcat3. Firstly, I've tried to run tomcat_path/bin/shutdown.sh to stop it via ssh, and the command is ssh [email protected] "cd /home/jake/tomcat2/bin;exec bash ./shutdown.sh" both " and ' are tried, but do not work, the output is eval: 1: /opt/Java/jdk1.6.0_25/jre/bin/java: not found it seems that the shell script runs on my local client, because on server it has this file. Is there any way to run a shell script on remote server correctly? updated I've run ssh [email protected] "sh -x /home/jake/tomcat/bin/shutdown.sh > /home/jake/tomcat.log 2>&1" and the output in tomcat.log is : + PRG=/home/jake/tomcat/bin/shutdown.sh + [ -h /home/jake/tomcat/bin/shutdown.sh ] + dirname /home/jake/tomcat/bin/shutdown.sh + PRGDIR=/home/jake/tomcat/bin + EXECUTABLE=catalina.sh + [ ! -x /home/jake/tomcat/bin/catalina.sh ] + exec /home/jake/tomcat/bin/catalina.sh stop eval: 1: /opt/Java/jdk1.6.0_25/jre/bin/java: not found

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• mac terminal run a file of commands

  - by Ilan Tal

  I am coming from Linux and trying to get a Mac to do what I want it to do. The question is what is the best tool to use. I want to mount (unmount) several remote disks. If I go into a terminal I can do the trick by mount -t smbfs //username:pass@addr /Users/me/RemoteDisks/mnt1 Since I want to mount several disks I would like to put all of the information into a file, store it in Documents/subfolder and make a link to it on the desktop (or somewhere better, if there is a better place). At the moment I have manually run the appropriate command in the terminal and the remote disk is mounted and I see its contents. What I need is a one click method to run a file to mount all the disks. I tried Apple script but that didn't like my commands. I don't know exactly what it is expecting to see and perhaps Apple script is the wrong tool. I have no problems in Linux, but the Mac is new to me and I don't know what I should be using. Thanks, Ilan

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• Joining an Ubuntu 14.04 machine to active directory with realm and sssd

  - by tubaguy50035

  I've tried following this guide to set up realmd and sssd with active directory: http://funwithlinux.net/2014/04/join-ubuntu-14-04-to-active-directory-domain-using-realmd/ When I run the command realm –verbose join domain.company.com –user-principal=c-u14-dev1/[email protected] –unattended everything seems to connect. My sssd.conf looks like the following: [nss] filter_groups = root filter_users = root reconnection_retries = 3 [pam] reconnection_retries = 3 [sssd] domains = DOMAIN.COMPANY.COM config_file_version = 2 services = nss, pam [domain/DOMAIN.COMPANY.COM] ad_domain = DOMAIN.COMPANY.COM krb5_realm = DOMAIN.COMPANY.COM realmd_tags = manages-system joined-with-adcli cache_credentials = True id_provider = ad krb5_store_password_if_offline = True default_shell = /bin/bash ldap_id_mapping = True use_fully_qualified_names = True fallback_homedir = /home/%d/%u access_provider = ad My /etc/pam.d/common-auth looks like this: auth [success=3 default=ignore] pam_krb5.so minimum_uid=1000 auth [success=2 default=ignore] pam_unix.so nullok_secure try_first_pass auth [success=1 default=ignore] pam_sss.so use_first_pass # here's the fallback if no module succeeds auth requisite pam_deny.so # prime the stack with a positive return value if there isn't one already; # this avoids us returning an error just because nothing sets a success code # since the modules above will each just jump around auth required pam_permit.so # and here are more per-package modules (the "Additional" block) auth optional pam_cap.so However, when I try to SSH into the machine with my active directory user, I see the following in auth.log: Aug 21 10:35:59 c-u14-dev1 sshd[11285]: Invalid user nwalke from myip Aug 21 10:35:59 c-u14-dev1 sshd[11285]: input_userauth_request: invalid user nwalke [preauth] Aug 21 10:36:10 c-u14-dev1 sshd[11285]: pam_krb5(sshd:auth): authentication failure; logname=nwalke uid=0 euid=0 tty=ssh ruser= rhost=myiphostname Aug 21 10:36:10 c-u14-dev1 sshd[11285]: pam_unix(sshd:auth): check pass; user unknown Aug 21 10:36:10 c-u14-dev1 sshd[11285]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=myiphostname Aug 21 10:36:10 c-u14-dev1 sshd[11285]: pam_sss(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=myiphostname user=nwalke Aug 21 10:36:10 c-u14-dev1 sshd[11285]: pam_sss(sshd:auth): received for user nwalke: 10 (User not known to the underlying authentication module) Aug 21 10:36:12 c-u14-dev1 sshd[11285]: Failed password for invalid user nwalke from myip port 34455 ssh2 What do I need to do to allow active directory users the ability to log in?

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• Umount stale glusterfs partition

  - by Khaled

  I am using glusterfs on several Ubuntu servers: two of them are running glusterfs servers in replication mode. Without any clear error, the glusterfs partition became stale and the system shows this error when I try to access the stale partition: Transport endpoint is not connected Also, when running ls -l on the parent folder I get: d????????? ? ? ? ? ? myfolder I tried all types of commands that I can find to umount this partition, but I could not get it done: umount -l /path/to/mount/point umount -f /path/to/mount/point Also, using fuser command to show processes accessing this folder did not work. Unload the fuse kernel module can not be done as it is clear from the kernel config that fuse is built into the kernel and not a loadable module. I found this line in /boot/config-2.6.32-24-server CONFIG_FUSE_FS=y I have been left with two options: Reboot the system. Create another mount point like myfolder2 and mount this again using sudo glusterfs -f /etc/glustefs/glusterfs.vol /path/to/folder2. Of course, I have chosen to go with option 2. Anyone faced such an issue before? Anyone has a better solution for such a case?

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• Change the default route without affecting existing TCP connections

  - by Patrick Horn

  Let's say I have two public network addresses on my server: one NAT through an ISP (192.168.99.0/24), and a VPN through a different ISP (192.168.1.0/24), already configured with a per-host route to the VPN server through my ISP. Here is my initial routing table. I am currently routing through my ISP on subnet 192.168.99.0/24. $ route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.99.1 0.0.0.0 UG 0 0 0 eth1 55.66.77.88 192.168.99.1 255.255.255.255 UGH 0 0 0 eth1 192.168.99.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 tap0 Now, I want new TCP connections to switch to my 192.168.1.0/24 so I type the following: $ route add -net 0.0.0.0 gw 192.168.1.1 dev tap0 When I do this, it causes some long-standing TCP connections to hang. Is there a way to I safely change the default interface for new connections, while allowing existing TCP connections to use the old route (i.e. do I need enable some sort of stateful routing table)? I am okay with a solution that only works with established TCP connections, and I don't care how hacky it is. For example, if there is a way to add temporary iptables rules for existing connections to force them over the old route. But there has to be some way to do this. EDIT: Just a note about a simple "route add -host ... " for existing connections: this solution would work if I am fine with leaving a subset of IPs on the old interface. However, in my application, this actually doesn't solve my problem because I want to allow new connections to come on the new interface even if they have the same source IP. I'm now looking at using the "ip route" command to set source-based routing rules.

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• Nginx ignores HTTP Authentication for WordPress login directory

  - by MrNerdy

  I am running WordPress in a subfolder of my domain for testing and development purposes on a VPS LEMP-stack. In order to password-protect the wp-login.php with an etxra layer, I used HTTP authentication for the wp-admin folder. The problem is that the http authentication is ignored. When the wp-login.php or wp-admin-folder is called, it goes directly to the normal WordPress-login. I installed everything from the command line in the following way: sudo apt-get install apache2-utils sudo htpasswd -c /var/www/bitmall/wp-admin/.htpasswd exampleuser New password: Re-type new password: Adding password for user exampleuser My Nginx configuration file looks like this: server { listen 80; root /var/www; index index.php index.html index.htm; server_name example.com; location / { try_files $uri $uri/ /index.html; } location /bitmall/wp-admin/ { auth_basic "Restricted Section"; auth_basic_user_file /var/www/bitmall/wp-admin/.htpasswd; } location ~ /\.ht { deny all; } error_page 404 /404.html; error_page 500 502 503 504 /50x.html; location = /50x.html { root /var/www; } # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000 location ~ \.php$ { try_files $uri =404; fastcgi_pass unix:/var/run/php5-fpm.sock; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; include fastcgi_params; } } I would appreciate your advive on this.

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• How do you install .net4 on a Server 2008 r2 machine through psremoting in powershell?

  - by Jake

  I need to write a script that installs .net 4 remotely using powershell to a group of Server 2008 R2 machines. I based my script off of http://social.technet.microsoft.com/Forums/en-US/winserverpowershell/thread/3045eb24-7739-4695-ae94-5aa7052119fd/. enter-pssession -computername localhost $arglist = "/q /norestart /log C:\Users\tempuser\Desktop\dotnetfx4" $filepath = "C:\Users\tempuser\Desktop\dotNetFx40_Full_setup.exe" Start-Process -FilePath $filepath -ArgumentList $arglist -Wait -PassThru After running the command I would get the following log errors (running the same lines locally would install .net without error): Action: Downloading Item Failed to CreateJob : hr= 0x80200014 Action: Performing actions on all Items Action: Performing Action on Exe at C:\Users\tempuser\Desktop\dotnetfx4\SetupUtility.exe Exe (C:\Users\tempuser\Desktop\dotnetfx4\SetupUtility.exe) succeeded. Exe Log File: dd_SetupUtility.txt Action complete Action: ServiceControl - Stop clr_optimization_v2.0.50727_32 ServiceControl operation succeeded! Action complete Action: ServiceControl - Stop clr_optimization_v2.0.50727_64 ServiceControl operation succeeded! Action complete Action: Performing Action on Exe at C:\Users\tempuser\AppData\Local\Temp\Microsoft .NET Framework 4 Setup_4.0.30319\Windows6.1-KB958488-v6001-x64.msu Exe (C:\Users\tempuser\AppData\Local\Temp\Microsoft .NET Framework 4 Setup_4.0.30319\Windows6.1-KB958488-v6001-x64.msu) failed with 0x5 - Access is denied. . PerformOperation on exe returned exit code 5 (translates to HRESULT = 0x5) Action complete OnFailureBehavior for this item is to Rollback. Action: Performing actions on all Items Action complete Action complete Action: Downloading http://go.microsoft.com/fwlink/?LinkId=164184&clcid=0x409 using WinHttp WinHttpDetectAutoProxyConfigUrl failed with error: 12180 Unable to retrieve Proxy information although WinHttpGetIEProxyConfigForCurrentUser called succeeded Action complete C:\Users\tempuser\AppData\Local\Temp\Microsoft .NET Framework 4 Setup_4.0.30319\TMPF279.tmp.exe: Verifying signature for netfx_Core.mzz C:\Users\tempuser\AppData\Local\Temp\Microsoft .NET Framework 4 Setup_4.0.30319\TMPF279.tmp.exe Signature verified successfully for netfx_Core.mzz Action complete Decompression completed with code: 16389 Decompression of payload failed: C:\Users\tempuser\AppData\Local\Temp\Microsoft .NET Framework 4 Setup_4.0.30319\netfx_Core.mzz Action complete Final Result: Installation failed with error code: (0x80074005) (Elapsed time: 0 00:00:28). Is there some security setting or perhaps something else I've missed?

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• Error installing pygraphviz on OSX

  - by Neil

  I'm trying to get the graph-models to work (from django-command extensions) on Snow Leopard. It requires pygraphviz, which I installed via macports. After successful install I am getting this error: >>> import pygrahphviz Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: No module named pygrahphviz >>> import pygraphviz Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/Library/Python/2.6/site-packages/pygraphviz-1.1-py2.6-macosx-10.6-universal.egg/pygraphviz/__init__.py", line 54, in <module> from agraph import AGraph, Node, Edge, Attribute, ItemAttribute File "/Library/Python/2.6/site-packages/pygraphviz-1.1-py2.6-macosx-10.6-universal.egg/pygraphviz/agraph.py", line 19, in <module> import graphviz as gv File "/Library/Python/2.6/site-packages/pygraphviz-1.1-py2.6-macosx-10.6-universal.egg/pygraphviz/graphviz.py", line 7, in <module> import _graphviz ImportError: dlopen(/Library/Python/2.6/site-packages/pygraphviz-1.1-py2.6-macosx-10.6-universal.egg/pygraphviz/_graphviz.so, 2): Symbol not found: _Agdirected Referenced from: /Library/Python/2.6/site-packages/pygraphviz-1.1-py2.6-macosx-10.6-universal.egg/pygraphviz/_graphviz.so Expected in: flat namespace in /Library/Python/2.6/site-packages/pygraphviz-1.1-py2.6-macosx-10.6-universal.egg/pygraphviz/_graphviz.so >>> Any suggestions?

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• Gentoo Linux useful utilities

  - by Alakdae

  I want to make a list of utilities that come in handy in Gentoo (general Linux tools available in all distributions also appreciated). What tools and commands do you use and consider helpful in administration of a Gentoo server? I will update the list with command from answers from time to time. eclean Utility for cleaning distfiles and binary packages. Usage example: eclean distfiles Usage example output: Cleans out the files in /usr/portage/distfiles. Pretty handy. Package: app-portage/gentoolkit eix Very useful tool for getting information about a package. Similar to "emerge -s" but much faster and more precise. Usage example: eix gentoolkit Usage example output: Show information about package such as: available versions, masked versions, installed versions and description. Package: app-portage/eix eix-test-obsolete Check system for obsolete, redundant, uninstalled entries in package.keywords, package.mask, package.unmask, package.use and package.cflags Usage example: eix-test-obsolete Usage example output: Shows non-matching entries, redundant entries, and uninstalled entries. Package: app-portage/eix equery Another very useful tool for getting information about packages (listing package files, checking which files belong to which package and much more) Usage example: equery b emerge Usage example output: Show which packages installed a file called emerge Package: app-portage/gentoolkit genlop Utility for extracting information about emerged ebuilds Usage example: genlop -l --date yesterday Usage example output: Show a list of packages that have been emerged yesterdayPackage: app-portage/genlop glsa-check Checks system if it's affected by GLSAs (security issues) Usage example: glsa-check -l affected Usage example output: List of GLSA that the system is affected by. Package: app-portage/gentoolkit rc-update Utility for managing (adding, deleting) runlevel scripts. Usage example: rc-update add syslog-ng default Usage example output: Adds syslog-ng to default runlevel. Package: sys-apps/baselayout revdep-rebuild Scans libraries and binaries for missing shared library dependencies Usage example: revdep-rebuild Usage example output: Gather binaries and libraries information, check for dependencies, rebuild packages with missing dependencies Package: app-portage/gentoolkit

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• Files built with a makefile are disapearing (including the binary)

  - by Reid

  I am building a program on a TS-7800(SBC), and when I run make (show below), it appears to go through all of the steps normally, but in the end i do not get a binary file. Why is this, and how can I get my file. makefile CC= /home/eclipse/ReidTest/cc/cross-toolchains/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-gcc # compiler options #CFLAGS= -O2 CFLAGS= -mcpu=arm9 #CFLAGS= -pg -Wall # linker LN= $(CC) # linker options LNFLAGS= #LNFLAGS= -pg # extra libraries used in linking (use -l command) LDLIBS= -lpthread # source files SOURCES= HMITelem.c Cpacket.c GPS.c ADC.c Wireless.c Receivers.c CSVReader.c RPM.c RS485.c # include files INCLUDES= Cpacket.h HMITelem.h CSVReader.h RS485.h # object files OBJECTS= HMITelem.o Cpacket.o GPS.o ADC.o Wireless.o Receivers.o CSVReader.o RPM.o RS485.o HMITelem: $(OBJECTS) $(LN) $(LNFLAGS) -o $@ $(OBJECTS) $(LDLIBS) .c.o: $*.c $(CC) $(CFLAGS) -c $*.c RUN : ./HMITelem #clean: # rm -f *.o # rm -f *~ Output root@ts7800:ReidTest# make /home/eclipse/ReidTest/cc/cross-toolchains/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-gcc -mcpu=arm9 -c HMITelem.c /home/eclipse/ReidTest/cc/cross-toolchains/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-gcc -mcpu=arm9 -c Cpacket.c /home/eclipse/ReidTest/cc/cross-toolchains/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-gcc -mcpu=arm9 -c GPS.c /home/eclipse/ReidTest/cc/cross-toolchains/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-gcc -mcpu=arm9 -c ADC.c /home/eclipse/ReidTest/cc/cross-toolchains/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-gcc -mcpu=arm9 -c Wireless.c /home/eclipse/ReidTest/cc/cross-toolchains/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-gcc -mcpu=arm9 -c Receivers.c /home/eclipse/ReidTest/cc/cross-toolchains/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-gcc -mcpu=arm9 -c CSVReader.c /home/eclipse/ReidTest/cc/cross-toolchains/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-gcc -mcpu=arm9 -c RPM.c /home/eclipse/ReidTest/cc/cross-toolchains/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-gcc -mcpu=arm9 -c RS485.c /home/eclipse/ReidTest/cc/cross-toolchains/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-gcc -o HMITelem HMITelem.o Cpacket.o GPS.o ADC.o Wireless.o Receivers.o CSVReader.o RPM.o RS485.o -lpthread Thank you.

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• How to make 7-Zip faster

  - by Matt

  I normally use WinRAR over 7-Zip simply because it's faster and only a little less efficient with compression. I did a few tests on different filetypes and sizes comparing the 7-Zip and WinRAR default settings on their normal compression and their best compression, and in a lot of cases WinRAR was 50% faster and in some it was actually 100% faster. But, I do like FOSS more. So here are my questions: Is there a way to make 7-Zip speed up? I'd like it to at least be on par with WinRAR's speed Is there a way to make recovery segments in 7-Zip like you can in WinRAR? I didn't see any, but I guess it could be a command line thing. I tested WinRAR and 7-Zip using the latest stable version of each (4-dot-something with 7-Zip). Is the 9.x beta release noticeably faster at compression? I'm talking about faster at a comparable setting in WinRAR, not just lowering to bare minimum compression. If it matters, I use a quad core Intel i7 720 (1.6 GHz)/(2.8 GHz) with 4 GB DDR3 RAM, and the 64-bit version of 7-Zip, and dual-boot Debian x64 5.0.4 and Windows 7 Home.

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• Sendmail in Nexenta core 3.0.1

  - by maximdim

  I'm trying to setup sendmail in Nexenta core 3.0.1 (Solaris based OS). All I want is to be able to send emails from that host - like notifications about failures, cron jobs output etc. Initially Nexenta core doesn't have sendmail so here is what I've done: apt-get install sunwsndmu Now there is a sendmail in /usr/sbin/sendmail. When I try to send email from command line: $mail maxim test . It doesn't give me any error but in log file I see: Dec 20 12:41:08 nas sendmail[12295]: [ID 801593 mail.info] oBKHf8u7012295: from=maxim, size=107, class=0, nrcpts=1, msgid=<201012201741.oBKHf8u7012295@nas>, relay=maxim@localhost Dec 20 12:41:08 nas sendmail[12295]: [ID 801593 mail.info] oBKHf8u7012295: to=maxim, ctladdr=maxim (1000/10), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30107, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection refused by [127.0.0.1] So I guess I need to have SMTP service running. How do I do that in Nexenta? svcs -a | grep sendmail doesn't return anything and # svcadm enable sendmail svcadm: Pattern 'sendmail' doesn't match any instances I'm not married to sendmail so if there are easier ways to achieve y goal I'm open to suggestions as well. Thanks,

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