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• Hyper-V server 2012 nic teaming setup and virtual switch configuration

  - by Calvin

  I have a server with 2 nics. I installed Hyper-v 2012 server (not windows server 2012, no gui) I am trying to set up load balancing. I have both nics in the same switch currently in trunk mode and no native vlan. I use the new-netlbfoteam command to create a team with both nics, I can then "set-netlbfoteamnic "Nic Team" -vlanid 4" so that its available to me with a DHCP or static address but as soon as I try to create a virtual switch it becomes unresponsive. My guess is that is due to it removing the vlan tagging I setup. if I add-netlbfoteamnic and set it for vlan 4, then set the IP I can ping it from my management computer but I just get an error "an error occurred while attempting to connect to server "xxxxxx" Check that the Virtual Machine Management service is running and that you are authorized to connect to the server."

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• Mysql stopped working

  - by tonymarschall

  Mysql is up and running on my system but i can not login with any user. I also cannot start/stop/status the server. All i got is: ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES) /usr/bin/mysqladmin: connect to server at 'localhost' failed error: 'Access denied for user 'debian-sys-maint'@'localhost' (using password: YES) From the logs: Mar 24 08:30:13 debian /etc/mysql/debian-start[1074]: Upgrading MySQL tables if necessary. Mar 24 08:30:13 debian /etc/mysql/debian-start[1078]: /usr/bin/mysql_upgrade: the '--basedir' option is always ignored Mar 24 08:30:13 debian /etc/mysql/debian-start[1078]: Looking for 'mysql' as: /usr/bin/mysql Mar 24 08:30:13 debian /etc/mysql/debian-start[1078]: Looking for 'mysqlcheck' as: /usr/bin/mysqlcheck Mar 24 08:30:13 debian /etc/mysql/debian-start[1078]: Running 'mysqlcheck' with connection arguments: '--port=3306' '--socket=/var/run/mysqld/mysqld.sock' '--host=localhost' '--socket=/var/run/mysqld/mysqld.sock' '--host=localhost' '--socket=/var/run/mysqld/mysqld.sock' Mar 24 08:30:13 debian /etc/mysql/debian-start[1078]: /usr/bin/mysqlcheck: Got error: 1045: Access denied for user 'debian-sys-maint'@'localhost' (using password: YES) when trying to connect Mar 24 08:30:13 debian /etc/mysql/debian-start[1078]: FATAL ERROR: Upgrade failed Mar 24 08:30:13 debian /etc/mysql/debian-start[1111]: Checking for insecure root accounts.

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• OpenVPN performance: how many concurrent clients are possible?

  - by Steffen Müller

  I am evaluating a system for a client where many OpenVPN clients connect to a OpenVPN server. "Many" means 50000 - 1000000. Why do I do that? The clients are distributed embedded systems, each sitting behind the system owners dsl router. The server needs to be able to send commands to the clients. My first naive approach is to make the clients connect to the server via an openvpn network. This way, the secure communication tunnel can be used in both directions. This means that all clients are always connected to the server. There are many clients summing up over the years. The question is: does the OpenVPN server explode when reaching a certain number of clients? I am already aware of a maximum TCP connection number limit, therefore (and for other reasons) the VPN would have to use UDP transport. OpenVPN gurus, what is your opinion?

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• Multiple Wireless Networks via Airport?

  - by Moshe

  Is it possible to to connect to multiple networks at the same time using the AirPort wireless card on my iMac 21.5"?

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• Network issues with DNS not being found

  - by Anriëtte Combrink

  Hi there This is exactly like how our network looks like: Single server with a network router Everything is setup, but I cannot connect our Macs under the Login Options - Join... to this server. Our server's name is Toolbox and I have tried Toolbox.local, Toolbox.private, prepended the afp:// protocol to the name, but nothing, our Macs just don't want to connect this way. Our router has DHCP and gives out all the IP addresses naturally, would I have to add Toolbox.local to the DNS on the router and like it via static internal IP to the server? Our Macs keep giving the following error while trying to join the Network Account Server: Unable to add server Could not resolve the address (2200) What am I doing wrong?

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• Using Ubuntu Karmic as an L2TP Client for VPN

  - by James Lawrie

  I'm trying to connect to a VPN service over L2TP using Karmic as a client and it's not working. The only details I have are the remote IP address, username & password, and a shared secret string; this is enough for Windows but doesn't appear to be enough for Ubuntu. I've tried using network-manager-vpnc and vpnc from the terminal to connect and I get "no supported authentication", and trying with OpenSwan it says "unable to identify either side of the connection". I'd really appreciate some help here if anyone else has implemented this successfully.

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• Linux (NAS) Permissions problem (Permission Denied)

  - by calumbrodie

  This is probably easier to show than to explain... -bash-3.2$ id uid=501(admin) gid=503(admin) groups=100(users),501(admins),503(admin) -bash-3.2$ groups admin users admins -bash-3.2$ ls -l total 8 drwxrwxrwx 78 admin www 4096 Dec 9 09:02 Inbox drwxrwxrwx 21 admin www 4096 Dec 8 21:45 Movies drwxrwx--- 3 admin www 52 Dec 9 07:57 TV -bash-3.2$ cd Movies -bash-3.2$ ls -l total 20 drwxrwx--- 7 admin www 4096 Dec 8 00:04 Action drwxrwx--- 6 admin www 4096 Dec 8 00:05 Animation drwxrwx--- 4 admin www 4096 Dec 8 00:17 Comedy drwxrwx--- 4 admin www 4096 Dec 8 00:14 Drama drwxrwx--- 4 admin www 4096 Dec 8 00:14 Family drwxrwx--- 6 admin www 58 Dec 6 19:10 Foreign Language drwxrwx--- 2 admin www 31 Dec 7 23:58 Horror drwxrwx--- 3 admin www 50 Dec 8 00:15 Science Fiction drwxrwx--- 2 admin www 6 Dec 8 00:16 Thriller -bash-3.2$ cd ../Inbox -bash: cd: ../Inbox: Permission denied Filesystem is XFS. Are there permissions on the directories that ls -l wouldn't show? I'm the owner of all directories and files inside them. I can sudo to modify the file permissions or view the contents of the folders but I need them to be accessible by 'admin'. Any ideas? I'll be checking the question regularly so let me know if I need to update this with more information. Thanks Edit : Added strace execve("/bin/ls", ["ls", "Inbox"], [/* 21 vars */]) = 0 brk(0) = 0x26000 uname({sys="Linux", node="axentraserver.the-brodie-stora.mystora.com", ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001c000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=17972, ...}) = 0 mmap2(NULL, 17972, PROT_READ, MAP_PRIVATE, 3, 0) = 0x4001d000 close(3) = 0 open("/lib/librt.so.1", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0P\25\0\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=39776, ...}) = 0 mmap2(NULL, 57816, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x40025000 mprotect(0x4002b000, 28672, PROT_NONE) = 0 mmap2(0x40032000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x5) = 0x40032000 close(3) = 0 open("/lib/libacl.so.1", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\0\24\0\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=134375, ...}) = 0 mmap2(NULL, 54368, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x40034000 mprotect(0x4003a000, 28672, PROT_NONE) = 0 mmap2(0x40041000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x5) = 0x40041000 close(3) = 0 open("/lib/libselinux.so.1", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\2147\0\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=297439, ...}) = 0 mmap2(NULL, 117504, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x40042000 mprotect(0x40056000, 28672, PROT_NONE) = 0 mmap2(0x4005d000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x13) = 0x4005d000 close(3) = 0 open("/lib/libgcc_s.so.1", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\10\"\0\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=43164, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40022000 mmap2(NULL, 74572, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x4005f000 mprotect(0x4006a000, 28672, PROT_NONE) = 0 mmap2(0x40071000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xa) = 0x40071000 close(3) = 0 open("/lib/libc.so.6", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0XI\1\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=1517948, ...}) = 0 mmap2(NULL, 1245628, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x40072000 mprotect(0x40195000, 32768, PROT_NONE) = 0 mmap2(0x4019d000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x123) = 0x4019d000 mmap2(0x401a0000, 8636, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x401a0000 close(3) = 0 open("/lib/libpthread.so.0", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\230A\0\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=121044, ...}) = 0 mmap2(NULL, 115184, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x401a3000 mprotect(0x401b5000, 28672, PROT_NONE) = 0 mmap2(0x401bc000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x11) = 0x401bc000 mmap2(0x401be000, 4592, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x401be000 close(3) = 0 open("/lib/libattr.so.1", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\364\f\0\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=40571, ...}) = 0 mmap2(NULL, 45512, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x401c0000 mprotect(0x401c3000, 32768, PROT_NONE) = 0 mmap2(0x401cb000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3) = 0x401cb000 close(3) = 0 open("/lib/libdl.so.2", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\254\10\0\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=15344, ...}) = 0 mmap2(NULL, 41116, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x401cc000 mprotect(0x401ce000, 28672, PROT_NONE) = 0 mmap2(0x401d5000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1) = 0x401d5000 close(3) = 0 open("/lib/libsepol.so.1", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\330/\0\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=228044, ...}) = 0 mmap2(NULL, 301748, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x401d7000 mprotect(0x4020f000, 28672, PROT_NONE) = 0 mmap2(0x40216000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x37) = 0x40216000 mmap2(0x40217000, 39604, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40217000 close(3) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40221000 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40222000 set_tls(0x40221d00, 0x40221d00, 0x40024000, 0x402223e8, 0x41) = 0 mprotect(0x401d5000, 4096, PROT_READ) = 0 mprotect(0x401bc000, 4096, PROT_READ) = 0 mprotect(0x4019d000, 8192, PROT_READ) = 0 mprotect(0x4005d000, 4096, PROT_READ) = 0 mprotect(0x40032000, 4096, PROT_READ) = 0 mprotect(0x40023000, 4096, PROT_READ) = 0 munmap(0x4001d000, 17972) = 0 set_tid_address(0x402218a8) = 9539 set_robust_list(0x402218b0, 0xc) = 0 rt_sigaction(SIGRTMIN, {0x401a6d90, [], SA_SIGINFO|0x4000000}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {0x401a6c64, [], SA_RESTART|SA_SIGINFO|0x4000000}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0 brk(0) = 0x26000 brk(0x47000) = 0x47000 open("/proc/mounts", O_RDONLY|O_LARGEFILE) = 3 fstat64(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001d000 read(3, "rootfs / rootfs rw 0 0\nubi0:root"..., 1024) = 1024 read(3, "fs.xino,noplink,create=mfs,sum,b"..., 1024) = 428 read(3, "", 1024) = 0 close(3) = 0 munmap(0x4001d000, 4096) = 0 access("/etc/selinux/", F_OK) = 0 open("/etc/selinux/config", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory) ioctl(1, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo ...}) = 0 ioctl(1, TIOCGWINSZ, {ws_row=52, ws_col=153, ws_xpixel=918, ws_ypixel=728}) = 0 stat64("Inbox", {st_mode=S_IFDIR|0777, st_size=4096, ...}) = 0 socket(PF_FILE, SOCK_STREAM, 0) = 3 fcntl64(3, F_GETFL) = 0x2 (flags O_RDWR) fcntl64(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0 connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory) close(3) = 0 socket(PF_FILE, SOCK_STREAM, 0) = 3 fcntl64(3, F_GETFL) = 0x2 (flags O_RDWR) fcntl64(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0 connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory) close(3) = 0 open("/etc/nsswitch.conf", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=1696, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001d000 read(3, "#\n# /etc/nsswitch.conf\n#\n# An ex"..., 4096) = 1696 read(3, "", 4096) = 0 close(3) = 0 munmap(0x4001d000, 4096) = 0 open("/etc/ld.so.cache", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=17972, ...}) = 0 mmap2(NULL, 17972, PROT_READ, MAP_PRIVATE, 3, 0) = 0x4001d000 close(3) = 0 open("/lib/libnss_files.so.2", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\304\27\0\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=49256, ...}) = 0 mmap2(NULL, 70316, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x40223000 mprotect(0x4022c000, 28672, PROT_NONE) = 0 mmap2(0x40233000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x8) = 0x40233000 close(3) = 0 mprotect(0x40233000, 4096, PROT_READ) = 0 munmap(0x4001d000, 17972) = 0 open("/etc/passwd", O_RDONLY) = 3 fcntl64(3, F_GETFD) = 0 fcntl64(3, F_SETFD, FD_CLOEXEC) = 0 fstat64(3, {st_mode=S_IFREG|0644, st_size=1661, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001d000 read(3, "root:x:0:0:root:/root:/bin/bash\n"..., 4096) = 1661 close(3) = 0 munmap(0x4001d000, 4096) = 0 socket(PF_FILE, SOCK_STREAM, 0) = 3 fcntl64(3, F_GETFL) = 0x2 (flags O_RDWR) fcntl64(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0 connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory) close(3) = 0 socket(PF_FILE, SOCK_STREAM, 0) = 3 fcntl64(3, F_GETFL) = 0x2 (flags O_RDWR) fcntl64(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0 connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory) close(3) = 0 open("/etc/group", O_RDONLY) = 3 fcntl64(3, F_GETFD) = 0 fcntl64(3, F_SETFD, FD_CLOEXEC) = 0 fstat64(3, {st_mode=S_IFREG|0644, st_size=700, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001d000 read(3, "root:x:0:root\nbin:x:1:root,bin,d"..., 4096) = 700 close(3) = 0 munmap(0x4001d000, 4096) = 0 open("Inbox", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = -1 EACCES (Permission denied) write(2, "ls: ", 4ls: ) = 4 write(2, "Inbox", 5Inbox) = 5 write(2, ": Permission denied", 19: Permission denied) = 19 write(2, "\n", 1 ) = 1 close(1) = 0 exit_group(2) = ? 2nd edit: Elaboration for Mike. The Inbox sits at the following location /home/admin/MyLibrary/MyVideos/Inbox /home/admin/MyLibrary/MyVideos/Movies The system is a Netgear Stora NAS box that I have root access to. The /home/ folder is mounted as an smb share on various computers around the house. The folder /Inbox cannot be opened on any of those machines (they all connect as 'admin'). When I ssh into the box using the 'admin' credentials I am also unable to access the folder. The folder was created via a Web Admin page hosted on the NAS. The user/group for the Inbox folder was previously apache:www (expected as this folder was created by the web application), but I chmod/chowned the folder as the root user in an attempt to grant the admin user (therefore the rest of the connected machines) access to the files. Sorry for not including this earlier, I wasn't sure if it was relevant and didn't want to confuse the situation. -Thanks 3rd Edit Sorry again - It looks like this NAS is running some custom version of Red Hat, not Debian as previously stated - I'm not sure if this makes a difference

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• Trouble using remote desktop when connected via Cisco VPN

  - by Kyle B.

  I just setup my Cisco VPN and everything appears to be working fine. I opened the 'remote desktop' application and am unable to connect to my work desktop machine. When I disable Windows Firewall, I am able to connect, but not when Firewall is enabled. Is there a specific settings inside Windows 7 Firewall that should I be enabling or disabling for this to work without having to shut down the entire system? I can post this in superuser.com instead if you feel it belongs there, but posted here due to it being related to VPN and Firewall. Thanks, Kyle

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• tproxy squid bridge very slow when cache is full

  - by Roberto

  I have installed a bridge tproxy proxy in a fast server with 8GB ram. The traffic is around 60Mb/s. When I start for first time the proxy (with the cache empty) the proxy works very well but when the cache becomes full (few hours later) the bridge goes very slow, the traffic goes below 10Mb/s and the proxy server becomes unusable. Any hints of what may be happening? I'm using: linux-2.6.30.10 iptables-1.4.3.2 squid-3.1.1 compiled with these options: ./configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --localstatedir=/var/lib --sysconfdir=/etc/squid --libexecdir=/usr/libexec/squid --localstatedir=/var --datadir=/usr/share/squid --enable-removal-policies=lru,heap --enable-icmp --disable-ident-lookups --enable-cache-digests --enable-delay-pools --enable-arp-acl --with-pthreads --with-large-files --enable-htcp --enable-carp --enable-follow-x-forwarded-for --enable-snmp --enable-ssl --enable-async-io=32 --enable-linux-netfilter --enable-epoll --disable-poll --with-maxfd=16384 --enable-err-languages=Spanish --enable-default-err-language=Spanish My squid.conf: cache_mem 100 MB memory_pools off acl manager proto cache_object acl localhost src 127.0.0.1/32 acl localhost src ::1/128 acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 acl to_localhost dst ::1/128 acl localnet src 10.0.0.0/8 # RFC1918 possible internal network acl localnet src 172.16.0.0/12 # RFC1918 possible internal network acl localnet src 192.168.0.0/16 # RFC1918 possible internal network acl localnet src fc00::/7 # RFC 4193 local private network range acl localnet src fe80::/10 # RFC 4291 link-local (directly plugged) machines acl net-g1 src xxx.xxx.xxx.xxx/24 acl SSL_ports port 443 acl Safe_ports port 80 # http acl Safe_ports port 21 # ftp acl Safe_ports port 443 # https acl Safe_ports port 70 # gopher acl Safe_ports port 210 # wais acl Safe_ports port 1025-65535 # unregistered ports acl Safe_ports port 280 # http-mgmt acl Safe_ports port 488 # gss-http acl Safe_ports port 591 # filemaker acl Safe_ports port 777 # multiling http acl CONNECT method CONNECT http_access allow manager localhost http_access deny manager http_access deny !Safe_ports http_access deny CONNECT !SSL_ports http_access allow net-g1 from where browsing should be allowed http_access allow localnet http_access allow localhost http_access deny all http_port 3128 http_port 3129 tproxy hierarchy_stoplist cgi-bin ? cache_dir ufs /var/spool/squid 8000 16 256 access_log none cache_log /var/log/squid/cache.log coredump_dir /var/spool/squid refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern -i (/cgi-bin/|\?) 0 0% 0 refresh_pattern . I have this issue when the cache is full, but do not really know if it is because of that. Thanks in advance and sorry my english. roberto

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• problem connecting to datasource defined in freetds.conf

  - by pkaeding

  I can connect successfully to my database using tsql when I bypass the freetds.conf file, like so: % TDSVER=8.0 tsql -H 10.100.102.202 -p 1086 -U sa After I enter my password, I am presented with a 1> prompt, and it is ready for my commands. However, if I try to connect using the definition in my freetds.conf file, like this: % tsql -S Millie -U sa after entering my password, it seems to be trying to generate a prompt, but it just keeps counting. I will see 1, followed by 2, etc, without ever displaying a > character. Here is what I have for my freetds.conf: [global] # TDS protocol version tds version = 8.0 text size = 64512 [Millie] host = 10.100.102.202 port = 1086 What could be causing this anomaly? If it helps, here is the output of tsql -C: % tsql -C Compile-time settings (established with the "configure" script) Version: freetds v0.82 freetds.conf directory: /usr/local/etc MS db-lib source compatibility: no Sybase binary compatibility: no Thread safety: yes iconv library: yes TDS version: 5.0 iODBC: no unixodbc: no

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• pfsense multi-site VPN VOIP deployment

  - by sysconfig

  have main office pfsense firewall configured like this: local networks WAN - internet LAN - local network VOIP - IP phones need to connect remote offices (multi-users) and single remote users (from home) use IPSEC or OpenVPN to build "permanent" automatically connecting tunnels from remote location to main location. in remote locations, network will look like this: WAN - internet LAN - local network multiple users VOIP - multiple IP phones in order for the IP phones to work they have to be able to "see" the VOIP network and the VOIP server back at the main office for single remote users ( like from home ) the setup will be similar but only one phone and one computer so questions: best way to tie networks together? IPSEC or OpenVPN can this be setup to automatically connect ? any issues/suggestions with that design/topology ? QoS or issues with running the VOIP traffic over a VPN throughput, quality etc.. obviously depends on remote locations connection to some degree

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• Two SATA HDDs connected using a Black Duet HDD Docking Station via eSATA to my Laptop, second drive

  - by leeand00

  Hi I am using a BlacX Duet HDD Docking Station to connect a 1TB WD Caviar Black SATA HDD (WD10000LSRTL) and a HITACHI SATA DESKSTAR (0S00163) to my G51VX (BestBuy) laptop via the eSATA port. When I plug in both HDDs in to the Docking Station, connect the docking station to my laptop and start Windows 7 (64-bit Ultimate), only the HDD in the first drive in the port actually shows up in My Computer and Disk Management. If I swap the drives positions I can get them both to work, but never at the same time. I also checked in the bios settings on the laptop, under Advanced-IDE Configuration-SATA Operation Mode, and it displays: SATA Operation Mode: [Enhanced] AHCI Port0 [Hard Disk] Device: Hard Disk Vendor: ST9320421AS LBA Mode: Supported S.M.A.R.T.: Supported AHCI Port5 [Hard Disk] Device: Hard Disk Vendor: Hitachi HDS721010CLA332 Size: 100.00 GB LBA Mode: Supported S.M.A.R.T.: Supported There should be a third drive, but I'm not certain why it is not being picked up. Additionally, before I played around with the settings in the IDE configuration, it used to display the DVD as well.

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• screen resume works on top of VPN

  - by michael

  I connect to my network using VPN. I have screen running and 'ssh' to a server. I then kill my shell and I was able to 'resume' by 'screen -r'. This works as expect. But when I disconnect VPN and re-connect VPN, and type 'screen -r' again. I was not able to get my last screen again. And I see "Write failed: Connection reset by peer46.11 MiB | 642 KiB/s" in the screen. Can you please tell me if it possible to reconnect 'screen' if my VPN is disconnect. Thank you.

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• Use Microsoft PowerPivot to Access Salesforce.com Through the OData Connector

  - by dataintegration

  This article will explain how to connect to any of our OData Connectors with Microsoft Excel's PowerPivot business intelligence tool. While the example will use the Salesforce Connector, the same process can be followed for any of the RSSBus OData Connectors. Step 1: Download and install both the Salesforce Connector from RSSBus and PowerPivot for Excel from Microsoft. Step 2: Next you will want to configure the Salesforce Connector to connect with your Salesforce account. If you browse to the Help tab in the Salesforce Connector application, there is a link to the Getting Started Guide which will walk you through setting up the Salesforce Connector. Step 3: Once you have successfully configured the Salesforce Connector application, you will want to open Excel and select the PowerPivot tab at the top of the window. Step 4: Here you will click on the button labeled PowerPivot Window at the top left. Step 5: A new pop up will appear. Now select the option "From Data Feeds". Step 6: In the resulting Table Import Wizard you will enter the OData URL of the Salesforce Connector. You can find this by clicking on the Settings tab of the Salesforce Connector. It will look something like this: http://localhost:8181/sfconnector/data/conn/odata.rsc. You will also need to add authentication options in this step. To do this, click on the Advanced button and scroll down to the Security section of the resulting pop up window. Change the Integrated Security option to "Basic". You will also need to enter the User ID and Password of the user who has access to the Salesforce Connector. Step 7: When the connection to the Salesforce Connector is successful, click the Next button at the bottom of the window. Step 8: A table listing of the available tables will appear in the next window of the wizard. Here you will select which tables you want to import and click Finish. Step 9: If the import was successful, click Close and you are done! Your data is now in PowerPivot.

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• HUGE EF4 Inheritance Bug

  - by djsolid

  Well maybe not for everyone but for me is definitely really important. That is why I get straight into the point. We have the following model: Which maps to the following database: We are using EF4.0 and we want to load all Burgers including BurgerDetails. So we write the following query: But it fails. The error is : “The ResultType of the specified expression is not compatible with the required type. The expression ResultType is 'Transient.reference[SampleEFDBModel.Food]' but the required type is 'Transient.reference[SampleEFDBModel.Burger]'.Parameter name: arguments[0]”   So in the new version of EF there is no way to eager load data through Navigation Properties with 1-1 relationships defined in subclasses. Here is the relevant Microsoft Connect Issue. It is described through an other example but the result is the same.  Please if you think this is important vote up on Microsoft Connect.   EF 4.0 has many improvements. I am using it since v1 in large-scale projects and this version is faster,produces cleaner sql, more reliable and can be used for complicated business scenarios. That is why I believe this issue should be solved as soon as possible. I understand that release cycles are slow but I am hoping atleast for a hotfix. I also have uploaded the example project so you can test it. Download it from here. If anyone has found any workarounds please post it in the comments section. Thanks!

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• Samba server error message in Windows XP

  - by Kumar P

  We have a RHEL5 Linux Server with few Windows XP client boxes. Using Samba server for share files between systems. My server working well in all systems but one Windows XP machine didn't connect to server. Here i give some screen shots for clear idea, For Check network connection i use ping, It working well. I use above way for connect to server. For all other systems it working well. I am getting error message like this. ** I am using squid for proxy in Linux, For me internet also working well in that Windows XP system. ** I Deleted stored user name and password for samba in windows XP. Help me to solve this problem.

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• Fedora 12 How to Force a Display to Load on Boot even when no Monitor is Attached

  - by key

  When booting Fedora 12 with no monitor connected, if I connect a monitor later it gives a no signal error. I think it is set to auto-detect if a monitor is connected or not and load a display based of that. Since it initially detects no monitor no display is loaded. What I would like to do is have it act as if a monitor was always connected and provide the display signal always. I don't know if this is the issue or not but if you know how I might be able to fix this issue so that I can connect a monitor whenever I feel like it without having to restart that would be best. Thanks for the help! :D

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• old ssl certficate didn't go away on apache2

  - by user1212143

  I have replaced the old ssl certficate with new one and restart apache several time but the old certificate still show on web browser and when I run a command openssl s_client -connect 127.0.0.1:443 -showcerts also I have delete all old certficate files. so not sure where apache still read these certficate. and not read the new one. here is my ssl.conf Listen 0.0.0.0:443 SSLEngine on SSLOptions +StrictRequire <Directory /> SSLRequireSSL </Directory> SSLProtocol -all +TLSv1 +SSLv3 SSLCipherSuite HIGH:MEDIUM:!aNULL:+SHA1:+MD5:+HIGH:+MEDIUM SSLMutex file:/usr/apache2/logs/ssl_mutex SSLRandomSeed startup file:/dev/urandom 1024 SSLRandomSeed connect file:/dev/urandom 1024 SSLSessionCache shm:/usr/apache2/logs/ssl_cache_shm SSLSessionCacheTimeout 600 SSLPassPhraseDialog builtin SSLCertificateFile /usr/apache2/conf/ssl.crt/server.crt SSLCertificateKeyFile /usr/apache2/conf/ssl.key/server.key SSLVerifyClient none SSLProxyEngine off <IfModule mime.c> AddType application/x-x509-ca-cert .crt AddType application/x-pkcs7-crl .crl </IfModule>

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• Windows 2008R2 blocks outbound LDAP for non-admins?

  - by Jon Bailey

  I've got a Windows 2008R2 terminal server with ~30 users on it. It's joined to a Samba-based domain. During the login script, we connect directly to the LDAP server to pull out certain profile information. This used to work just fine. Now, it doesn't, but only for non-local-admin accounts. Local admins work fine. As a non-local-admin: Connection to ports 389 or 636 just terminate (wireshark on the LDAP server reveals no connection attempt) Connection to other ports on the same server work fine Same thing on multiple LDAP servers Windows firewall is disabled Can't find any other rules/policies that may block this I suspect since this used to work, it came down during an update, but for the life of me, I can't find what. EDIT: I just ran Wireshark on the machine and didn't see anything when connecting to the LDAP server in question (or any LDAP server for that matter). I can, however, see traffic when I connect to that server on another port.

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• Using virt-install to mount multiple cdrom drives/images

  - by Dana the Sane

  I would like to create a windows xp guest from the windows xp upgrade cd I have, along with one of a few full versions I have around. However, when I reach the stage in the installer where I am prompted to insert a full version cd, the installer can't find it, i.e.: Setup could not read the CD you inserted, or the CD is not a valid Windows CD.. Is there a work-around for this?, my Googling didn't uncover anything. I've tried various combinations of mounting .iso files and specifying disks, such as: $sudo virt-install --accelerate --connect qemu:///system -n xpsp1 -r 2048 --disk ./vm/winxp_sp1.iso,device=cdrom --disk ./vm/windows.qcow2,size=12 --vnc --noautoconsole --os-type windows --os-variant winxp --vcpus 2 -c /dev/cdrom --check-cpu If I try to specify multiple cdrom drives, I receive an error: virt-install --accelerate --connect qemu:///system -n xpsp1 -r 2048 --disk ./vm/winxp_sp1.iso,device=cdrom --disk /dev/cdrom,device=cdrom --disk ./vm/windows.qcow2,size=12 --vnc --noautoconsole --os-type windows --os-variant winxp --vcpus 2 --check-cpu Starting install... ERROR IDE CDROM must use 'hdc', but target in use.

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• Virtual Network Interface and NAT disables localhost access for MySQL and Apache

  - by Interarticle

  I'm running an Ubuntu Server 12.04, and recently I configured it to do NAT for my laptop. Since the server has only one NIC, I followed instructions online to create a virtual network device (eth0:0) that has a LAN IP address, then further configured iptables and UFW to allow internet sharing. However, just a few days ago, I discovered that one of the PHP pages hosted on the server failed for no apparent reason. A little digging revealed that the MySQL server started refusing connections from localhost. The same happened with a page (PhpMyAdmin) that was configured to be accessible only from localhost (in Apache2). The error, as shown by $mysql --protocol=tcp -u root -p looks like ERROR 1130 (HY000): Host '<host name of eth0>' is not allowed to connect to this MySQL server However, the funny thing is, I configured the mysql server to allow root access from localhost (only). Moreover, the mysql server listens only on 127.0.0.1:3306, as shown by: sudo netstat -npa | head Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN 1029/mysqld which means that the connection could have only come from 127.0.0.1 (Note that MySQL is working because I can still connect to it via unix domain sockets) In effect, it seems that all tcp connections originating from 127.0.0.1 to 127.0.0.1 appear to any local daemon to come from the eth0 IP address. Indeed, apache2 allowed me to access PhpMyAdmin after I added allow <eth0 IP address>. The following are my network configurations (redacted): /etc/hosts: 127.0.0.1 localhost 211.x.x.x <host name of eth0> <server name> #IPv6 Defaults follows .... /etc/network/interfaces: auto lo iface lo inet loopback auto eth0 iface eth0 inet static address 211.x.x.x netmask 255.255.255.0 gateway 211.x.x.x dns-nameservers 8.8.8.8 # dns-* options are implemented by the resolvconf package, if installed dns-search xxxxxxx.com hwaddress ether xx:xx:xx:xx:xx:xx auto eth0:0 iface eth0:0 inet static address 192.168.57.254 netmask 255.255.254.0 broadcast 192.168.57.255 network 192.168.57.0 /etc/ufw/sysctl.conf: #Uncommented the following lines net/ipv4/ip_forward=1 net/ipv6/conf/default/forwarding=1 /etc/default/ufw: DEFAULT_FORWARD_POLICY="ACCEPT" #Changed DROP to ACCEPT /etc/init/internet-sharing.conf (upstart script I wrote), section pre-start script: iptables -A FORWARD -o eth0 -i eth0:0 -s 192.168.57.22 -m conntrack --ctstate NEW -j ACCEPT iptables -A FORWARD -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT iptables -A POSTROUTING -t nat -j MASQUERADE Note again that my problem here is that programs cannot access localhost tcp services, from the server itself, and that access is blocked because the services have access control allowing only 127.0.0.1. I have no problem connecting (as in TCP connections) to services via tcp, even if the services listen only on 127.0.0.1. I do NOT want to connect to the services from another computer.

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• [Windows 7] Certain Programs cannot access internet

  - by Cindy

  Operating System: Windows 7 (x64) Problem: Certain Programs are unable to access the internet. They claim that there is no connection when you already are connected. Hello, before we start. Just letting you know I'm new here, and I'm very new to Windows 7. I installed it two days ago. I just installed Windows 7 on my laptop and I have a few problems. I play World of Warcraft, as well as a variety of games. And when I first attempt to log into the game, I get a windows error message, but it doesn't stop there. I thought World of Warcraft got corrupted during the upgrade. It seems that I am unable to access the internet from other online games as well. Most say in along the lines of "Cannot connect to patch server, try again later." I cannot use a downloader Also, I have internet explorer. The x32 version of the browser cannot connect to the internet, and when I try to enter "google.com", it says the same thing. I'm only accessing this site through Internet Explorer x64, which I would have been fine with is it's compatible with Adobe Flash. The only thing that seems to connect to the internet are Internet Explorer x64 and Windows Live Messenger. Here are the steps I have taken, but none worked. 1.) Disable Windows Firewall 2.) Have Windows Firewall Enabled, but allow the specific programs to access internet. And allowed all incoming access. 3.) Disabled UAC, Ran the programs as an admin, and set compatibility to Vista. 4.) Uninstalled an anti-virus program. (McAffee Security Suite 2010) 5.) Reinstalled the programs 6.) Reinstalled Windows 7 7.) Retaken the steps on the Administrator account. Please assist me in this problem. I need to get back into the game. Thanks so much in advance.

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• Host name resolution on a home network

  - by Kris

  Hi, I have several machines (both virtual and physical) in my internal network at home. Currently I have to connect via 1P addresses. The one main machine I connect with to all the other machines is running Windows Vista. Is there a way I can have some sort of DNS capability inside my network as well so I can refer to these machines with a name? I think this would be a common problem in most households (running a few computers) and I think there might be some simple solutions out there. This would be something most routers should support out of the box - but why don't they? Can anyone recommend some of these or an easy way to accomplish this?

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• Host name resolution on a home network

  - by Kris

  Hi, I have several machines (both virtual and physical) in my internal network at home. Currently I have to connect via 1P addresses. The one main machine I connect with to all the other machines is running Windows Vista. Is there a way I can have some sort of DNS capability inside my network as well so I can refer to these machines with a name? I think this would be a common problem in most households (running a few computers) and I think there might be some simple solutions out there. This would be something most routers should support out of the box - but why don't they? Can anyone recommend some of these or an easy way to accomplish this?

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• DELL switch 6248 port and mac mapping using SNMP

  - by Brad

  I have a Dell 6248 switch. I connect some of my servers to it and want to know which server nic connected to which switch port. I try using snmpwalk to get this information, but I just can get mac/ip mapping of my server nic from switch, I still can't get which switch port it connect. I try a tool named Managed Switch Port Mapping tool, it can show which switch port is connected to which nic/ip. I use WireShare to get all snmp packets but still can't find what's the snmp oid to get this information. Anyone knows how to get this?

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