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  • SSH sometimes screws up connection when terminal overflows?

    - by SeveQ
    I've got a problem with SSH on a Debian Lenny based server (it's a vHost within a Xen environment, booted on a Xen kernel). I hope someone can help me with this. The SSH connection seems somehow getting screwed up frequently when the terminal overflows (new lines beyond the bottom of the terminal, usually forcing it to scroll). The connection gets lost but not regularly disconnected. It nearly always happens when I do the following: an existing SSH connection gets disconnected (regularly) I order putty to reestablish the connection login-prompt appears at the very bottom of the putty terminal window I enter my login-name, press the enter key I'm asked for the password, I enter it, press the enter key and BOOM! Nothing more happens. I have to reconnect again. So it is reproducable. I'm not totally sure if the connection crashes before or after I enter the password. Furthermore it also happens when there is much text to be displayed (for example when I compile something or do an ls -l on a directory with many entries). Using 'screen', however, helps to reduces the frequency of occurence but doesn't solve the problem completely. It's occurence is independent from which terminal software I use. I mostly use putty but it also happens with other clients. I certainly hope somebody can help me solving this problem. Thanks in advance! //edit: I've just made a Wireshark trace of the ssh connection and there is nothing, I repeat, nothing different between the working and the failing connection (at least aside from frame numbers, ports and times that obviously can't be equal). This leads me to the assumption that the error has to happen on the server's side.

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  • Is it possible to have DisplayLink USB display hotplugging with Xorg 1.13 on kernel 3.4?

    - by lkraav
    keithp seems to be the only one on the interwebs to have written anything about the subject and he worked with 3.5_rc. I don't want to go above 3.4 at the moment for various stability reasons and am trying to see whether I can get this to work. Xorg 1.13 recognizes the display on connection, "udl" module is loaded, xorg-video-modesetting driver also loads, display lights up. So everything seems to be good. I emerged xrandr-9999 (not many changes on top of 1.3.5): $ xrandr --listproviders Providers: number : 2 Provider 0: id: 69 cap: 0x0 crtcs: 2 outputs: 4 associated providers: 0 name:Intel Provider 1: id: 338 cap: 0x0 crtcs: 1 outputs: 1 associated providers: 0 name:modesetting But I can't get any further, just like this guy: $ xrandr --setprovideroutputsource 338 69 X Error of failed request: BadValue (integer parameter out of range for operation) Major opcode of failed request: 139 (RANDR) Minor opcode of failed request: 35 () Value in failed request: 0x152 Serial number of failed request: 11 Current serial number in output stream: 12 $ xrandr --setprovideroutputsource 1 0 X Error of failed request: 148 Major opcode of failed request: 139 (RANDR) Minor opcode of failed request: 35 () Serial number of failed request: 11 Current serial number in output stream: 12 Any thoughts?

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  • How to find date/time used by Cassandra

    - by JDI Lloyd
    Earlier this morning I noticed that one of the nodes in our Cassandra cluster is writing logs an hour in the future, despite the date/time being correct on the OS. A couple of other nodes I checked via logs appear to be writing logs at the correct time. I now need to go through and check each node in our 80 node cluster and ensure cassandra is running on the correct time, problem being is some of the nodes don't write to the logs very often as they aren't doing much... the question is, is there some form of tool/utility (ie nodetool) that can tell me the time that cassandra is running on? All the systems date/times are correct, ntpdate cron in place has been for a while. Servers are set to Belize timezone to avoid DST changes so its nothing to do with that.

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  • Is there a way to obtain the raw image from a Norton Ghost file ?

    - by amo-ej1
    I have a Norton Ghost .gho file, and basicly I want to extract the raw image out of this, for example to use with with tools like dd. (So using any symantec/windows tools is not an option). Is there any open source tool which can deal with these .gho files ? (Note: the.gho file I'm using is a sector based one, and not a file-based one, which implies that things such as Ghost explorer won't work either (see this page)

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  • Ubuntu most menu items dark-on-dark

    - by krzysz00
    Since to ubuntu 10.04 upgrade move of my drop-down menus have been dark-on-dark text, which becomes readable (changed background) when selected. I don't know what's causing this but it's a problem on Ambience and Radiance both. Any hints?

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  • Set Users as chrooted for sftp, but allow user to login in SSH

    - by Eghes
    I have setup a ssh server on debian 7, to use sftp connection. I chrooted some user, with this config: Match Group sftpusers ChrootDirectory /sftp/%u ForceCommand internal-sftp But if i want login with one of this chrooted users in ssh console, they get logged, but autoclose the connection. In logs I see: Oct 17 13:39:32 xxxxxx sshd[31100]: Accepted password for yyyyyy from zzz.zzz.zzz.zzz port 7855 ssh2 Oct 17 13:39:32 xxxxxx[31100]: pam_unix(sshd:session): session opened for user yyyyyyyyyyyy by (uid=0) Oct 17 13:39:32 d00hyr-ea1 sshd[31100]: pam_unix(sshd:session): session closed for user yyyyyyyyyyyy How can I chroot a user only for sftp, and use it as a normal user for ssh?

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  • GNU Screen: Combining split-regions and full-screen sessions

    - by scrrr
    Let's say I have three sessions: 0, 1 and 2 I'm on session 0 and I press CTRL-A S to split the screen. Then I select session 1 for the bottom split region, while 0 is in the upper. Can I switch to session 2 and have it display in full-screen while 0 and 1 remain split? If I CTRL-A n to other sessions in a split screen it only changes the split-region. I want some sessions to be full-screen though. Is that possible?

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  • Perform action based on load avg

    - by sfx
    I'm running some web applications on an debian server and have to struggle with ddos attacks sometimes. It's eating up all my resources and I can't ssh anymore into the server. An idea was to drop all connections if the load avg is too high, so there are still resources for me and accept new connections if the load avg is low enough. Since this has to work under heavy load I'm afraid a cronjob wouldn't be fast enough or take too much resources. tl;dr: Is there a way to configure the behavior if the load avg is above a specific threshold?

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  • vlans on openvz, centos 6

    - by arheops
    i have centos 6 with openvz installed on it, switch with vlan support. I need following setup: 1) eth0 on openvz have be tagged multiple vlans. 2) each virtualhost have to be in single vlan. yes,i already read wiki on openvz, but it is just not work. I have on main server interface eth0.108 and able ping address on that interface(using nootbook on untagged port vlan 108), but i not able ping address inside container. Main node: [root@box1 conf]# ifconfig eth0 Link encap:Ethernet HWaddr D0:67:E5:F4:11:60 inet6 addr: fe80::d267:e5ff:fef4:1160/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:506 errors:0 dropped:0 overruns:0 frame:0 TX packets:25 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:68939 (67.3 KiB) TX bytes:1780 (1.7 KiB) Interrupt:16 Memory:c0000000-c0012800 eth0.108 Link encap:Ethernet HWaddr D0:67:E5:F4:11:60 inet addr:10.11.108.3 Bcast:10.11.111.255 Mask:255.255.252.0 inet6 addr: fe80::d267:e5ff:fef4:1160/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:238 errors:0 dropped:0 overruns:0 frame:0 TX packets:19 errors:0 dropped:12 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:25890 (25.2 KiB) TX bytes:926 (926.0 b) eth1 Link encap:Ethernet HWaddr D0:67:E5:F4:11:61 inet addr:192.168.23.233 Bcast:192.168.23.255 Mask:255.255.255.0 inet6 addr: fe80::d267:e5ff:fef4:1161/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1967 errors:0 dropped:0 overruns:0 frame:0 TX packets:356 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:365298 (356.7 KiB) TX bytes:115007 (112.3 KiB) Interrupt:17 Memory:c2000000-c2012800 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:7 errors:0 dropped:0 overruns:0 frame:0 TX packets:7 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:784 (784.0 b) TX bytes:784 (784.0 b) venet0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet6 addr: fe80::1/128 Scope:Link UP BROADCAST POINTOPOINT RUNNING NOARP MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:3 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) veth108.0 Link encap:Ethernet HWaddr 00:18:51:DA:94:D5 inet6 addr: fe80::218:51ff:feda:94d5/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:639 errors:0 dropped:0 overruns:0 frame:0 TX packets:5 errors:0 dropped:1 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:17996 (17.5 KiB) TX bytes:308 (308.0 b) virtual node [root@pbx108 /]# ifconfig eth0.108 Link encap:Ethernet HWaddr 00:18:51:CA:B5:C5 inet addr:10.11.108.1 Bcast:10.11.111.255 Mask:255.255.252.0 inet6 addr: fe80::218:51ff:feca:b5c5/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:5 errors:0 dropped:0 overruns:0 frame:0 TX packets:685 errors:0 dropped:2 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:308 (308.0 b) TX bytes:19284 (18.8 KiB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:683 errors:0 dropped:0 overruns:0 frame:0 TX packets:683 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:76288 (74.5 KiB) TX bytes:76288 (74.5 KiB) /etc/vz/conf/108.conf # RAM PHYSPAGES="0:4000M" # Swap SWAPPAGES="0:512M" # Disk quota parameters (in form of softlimit:hardlimit) DISKSPACE="200G:200G" DISKINODES="20000000:22000000" QUOTATIME="0" # CPU fair scheduler parameter CPUUNITS="4000" VE_ROOT="/vz/root/$VEID" VE_PRIVATE="/vz/private/$VEID" OSTEMPLATE="centos-6-x86_64" ORIGIN_SAMPLE="vswap-256m" NETIF="ifname=eth0.108,mac=00:18:51:CA:B5:C5,host_ifname=veth108.0,host_mac=00:18:51:DA:94:D5" NAMESERVER="8.8.8.8" HOSTNAME="pbx108.localhost" IP_ADDRESS=""

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  • Owner of uploads directory is `www-data` but this prevents FTP access via PHP scripts

    - by letseatfood
    To allow write access to Apache, I needed to chown www-data:www-data /var/www/mysite/uploads to my site's upload folder. This allows me to delete files from the folder via unlink() in a PHP script. Unfortunately, this prevents another PHP script, which uses FTP functions, from working. I think it is because the FTP user is mike and now that the uploads directory is owned by www-data, mike cannot access it. I added mike to the group www-data, but this does not fix the issue. Can somebody advise me on how to allow PHP FTP functions to work in addition to file deletion using PHP's unlink() function?

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  • testdisk - recover partition table

    - by Evaggelos Balaskas
    I destroyed my partition table of my laptop. Testdisk reports the below Disk laptop.img - 250 GB / 232 GiB - CHS 30402 255 63 (RO) Partition Start End Size in sectors >P MS Data 435868 456606 20739 [NO NAME] P MS Data 19232600 19235479 2880 [NO NAME] D MS Data 41945087 83890143 41945057 D MS Data 57151486 168579069 111427584 D MS Data 67637246 141037565 73400320 D MS Data 151523326 193466365 41943040 D MS Data 170617328 170618223 896 D MS Data 170631168 170634047 2880 D MS Data 171338232 171344405 6174 [Boot] D MS Data 172008235 172231918 223684 [NO NAME] P MS Data 193466368 214437887 20971520 D MS Data 217321375 225321678 8000304 [root] D MS Data 224923646 308809725 83886080 [media] D MS Data 308809728 420237311 111427584 D MS Data 418910206 481824765 62914560 [vmimages] my partition table had 3 Primary Partitions. 1. WinXP Home 2. /boot 3. LVM inside LVM i had 9 or 10 LVM partitions One of them was my home (encrypted with luks) testdisk cant recover my partition table or any other partition. Partitions with [P] doesnt have any useful data. I want to use dd to extract the partitions and try to recover as many files i can. Any ideas of how i can extract eg. the [root] lvm partition from the above testdisk report ? I am afraid that my disk was also corrupted.

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  • samba4 not building in Arch

    - by kmplsv
    cp bin/tdbtool bin/tdbdump bin/tdbbackup /tmp/yaourt-tmp-root/aur-samba4/pkg//opt/samba4/samba/bin cp ./include/tdb.h /tmp/yaourt-tmp-root/aur-samba4/pkg//opt/samba4/samba/include cp tdb.pc /tmp/yaourt-tmp-root/aur-samba4/pkg//opt/samba4/samba/lib/pkgconfig cp libtdb.a libtdb.so.1.2.4 /tmp/yaourt-tmp-root/aur-samba4/pkg//opt/samba4/samba/lib rm -f /tmp/yaourt-tmp-root/aur-samba4/pkg//opt/samba4/samba/lib/libtdb.so ln -s libtdb.so.1.2.4 /tmp/yaourt-tmp-root/aur-samba4/pkg//opt/samba4/samba/lib/libtdb.so rm -f /tmp/yaourt-tmp-root/aur-samba4/pkg//opt/samba4/samba/lib/libtdb.so.1 ln -s libtdb.so.1.2.4 /tmp/yaourt-tmp-root/aur-samba4/pkg//opt/samba4/samba/lib/libtdb.so.1 mkdir -p /tmp/yaourt-tmp-root/aur-samba4/pkg/`/tmp/yaourt-tmp-root/aur-samba4/src/bin/python -c "import distutils.sysconfig; print distutils.sysconfig.get_python_lib(1, prefix='/opt/samba4/samba')"` cp tdb.so /tmp/yaourt-tmp-root/aur-samba4/pkg/`/tmp/yaourt-tmp-root/aur-samba4/src/bin/python -c "import distutils.sysconfig; print distutils.sysconfig.get_python_lib(1, prefix='/opt/samba4/samba')"` /bin/install -c -d /tmp/yaourt-tmp-root/aur-samba4/pkg//opt/samba4/samba/share/man/man8 for I in manpages/*.8; do \ /bin/install -c -m 644 $I /tmp/yaourt-tmp-root/aur-samba4/pkg//opt/samba4/samba/share/man/man8; \ done /bin/install: cannot stat `manpages/*.8': No such file or directory make: *** [installdocs] Error 1 Aborting... ==> ERROR: Makepkg was unable to build samba4. ==> Restart building samba4 ? [y/N] ==> ------------------------------- ==>c Any ideas as what is causing my build to fail? I assume it's an issue with manpages I can't figure out exactly what package it is looking for that I don't have.

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  • How can I fix this configure error?

    - by balor123
    I'm trying to build mosh from source on a SUSE10 machine and am getting the following error: checking for protobuf... no configure: error: Package requirements (protobuf) were not met: No package 'protobuf' found Consider adjusting the PKG_CONFIG_PATH environment variable if you installed software in a non-standard prefix. Alternatively, you may set the environment variables protobuf_CFLAGS and protobuf_LIBS to avoid the need to call pkg-config. See the pkg-config man page for more details. I downloaded the source to protobuf and installed it in a custom path as well. I'm not using a package manager for any of this and cannot for various reasons outside the scope of the question. I added that custom path to my PATH and rehashed. Typically, this is enough for configure but in this case its not doing the trick. I added the prefix for protobuf to PKG_CONFIG_PATH but am still hitting this error. What should I do next to get past this error?

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  • Xinerama creates a panning viewport

    - by iblue
    EDIT: I've created a bug report: https://bugs.freedesktop.org/show_bug.cgi?id=48458 My Setup I have 4 monitors, 1920x1080, which are in portrait mode (rotated left). They are connected to two radeon graphic cards. As usual, a picture says more than a thousand words. The problem Everything works fine, when Xinerama is disabled. But when I enable Xinerama, things get weird. When I move the mouse of the screen and return, the screen contents begin to move with the mouse, only on this monitor. It seems like the virtual display size does not match the real screen size, which activates a panning viewport. Any idea how to stop this? The video I created a video to demonstrate the issue: http://www.youtube.com/watch?v=zq_XHji1P24 xorg.conf This is my xorg.conf: Section "ServerLayout" ##################[ Evilness begins here ]############# Option "Xinerama" "on" # <--- Makes it go b0rked! ##################[ End of all evil ]############# Identifier "BOFH Console of Doom" Screen 0 "Screen-0" 0 0 Screen 1 "Screen-1" RightOf "Screen-0" Screen 2 "Screen-2" RightOf "Screen-1" Screen 3 "Screen-3" RightOf "Screen-2" EndSection Section "ServerFlags" Option "RandR" "false" EndSection Section "Module" Load "dbe" Load "dri" Load "extmod" Load "dri2" Load "record" Load "glx" EndSection Section "Monitor" Identifier "Monitor-0" Option "Rotate" "left" EndSection Section "Monitor" Identifier "Monitor-1" Option "Rotate" "left" EndSection Section "Monitor" Identifier "Monitor-2" Option "Rotate" "left" EndSection Section "Monitor" Identifier "Monitor-3" Option "Rotate" "left" EndSection Section "Device" Identifier "Radeon-0-0" Driver "radeon" BusID "PCI:9:0:0" Option "ZaphodHeads" "DVI-0" Screen 0 EndSection Section "Device" Identifier "Radeon-0-1" Driver "radeon" BusID "PCI:9:0:0" Option "ZaphodHeads" "DVI-1" Screen 1 EndSection Section "Device" Identifier "Radeon-1-0" Driver "radeon" BusID "PCI:4:0:0" Option "ZaphodHeads" "DVI-2" Screen 0 EndSection Section "Device" Identifier "Radeon-1-1" Driver "radeon" BusID "PCI:4:0:0" Option "ZaphodHeads" "DVI-3" Screen 1 EndSection Section "Screen" Identifier "Screen-0" Device "Radeon-0-0" Monitor "Monitor-0" DefaultDepth 24 SubSection "Display" Viewport 0 0 Depth 24 EndSubSection EndSection Section "Screen" Identifier "Screen-1" Device "Radeon-0-1" Monitor "Monitor-1" DefaultDepth 24 SubSection "Display" Viewport 0 0 Depth 24 EndSubSection EndSection Section "Screen" Identifier "Screen-2" Device "Radeon-1-0" Monitor "Monitor-2" DefaultDepth 24 SubSection "Display" Viewport 0 0 Depth 24 EndSubSection EndSection Section "Screen" Identifier "Screen-3" Device "Radeon-1-1" Monitor "Monitor-3" DefaultDepth 24 SubSection "Display" Viewport 0 0 Depth 24 EndSubSection EndSection

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  • With CentOS 6 and LXC, "ifconfig" is unable to see network interface (but busybox "ifconfig" works fine)

    - by larsks
    I've just started working with LXC under CentOS 6 (via the libvirt adapter). If I create an LXC container, I'm unable to see any network interfaces when using the native system tools: # ifconfig -a # The behavior is very odd; specifying an interface by names yields neither the expected output nor an error message. This is true even for clearly invalid interface names, like this: # ifconfig foo # The ip command exhibits the same behavior. On the other hand, if I use "ifconfig" provided by busybox, everything works as expected: # busybox ifconfig -a eth0 Link encap:Ethernet HWaddr 52:54:00:E0:12:C8 inet6 addr: fe80::5054:ff:fee0:12c8/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:268 errors:0 dropped:0 overruns:0 frame:0 TX packets:6 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:17814 (17.3 KiB) TX bytes:552 (552.0 B) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) So...what does busybox know that the native tools don't? The libvirt config for this environment is pretty standard; the network definition looks like this: <interface type='network'> <mac address='52:54:00:e0:12:c8'/> <source network='default'/> <target dev='veth0'/> </interface> The full configuration is here if you think it might help. I'm running: lxc-0.7.2-2.el6.x86_64 kernel-2.6.32-71.29.1.el6.x86_64 EDIT Weirder and weirder...it's a display issue, not a functionality issue. I can see the output of ifconfig if I pipe it into anything, so for example: # ifconfig eth0 | cat eth0 Link encap:Ethernet HWaddr 52:54:00:E0:12:C8 inet addr:192.168.10.10 Bcast:192.168.10.255 Mask:255.255.255.0 inet6 addr: fe80::5054:ff:fee0:12c8/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:573 errors:0 dropped:0 overruns:0 frame:0 TX packets:6 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:37914 (37.0 KiB) TX bytes:552 (552.0 b) And in fact even when not piping the output, strace shows that ifconfig is in fact writing the output to file descriptor 1 (aka stdout), so it's not clear why no output is actually showing up. This could be either an LXC or a virsh issue, I guess.

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  • Unix domain socket firewall

    - by lagab
    Hello, everyone. I've got a problem with my debian server. Probably there is some vulnerable script at my web-serser, which is running from www-data user. I also have samba with winbind installed, and samba is joined to windows domain. So, probably this vulnerable script allows hacker to bruteforce out domain controller through winbind unix domain socket. Actually I have lots of such lines at netstat -a output: unix 3 [ ] STREAM CONNECTED 509027 /var/run/samba/winbindd_privileged/pipe And our DC logs contain lots of recorded authentication attems from root or guest accounts. How can I restrict my apaches access to winbind? I had an idea to use some kind of firewall for IPC sockets. Is it possible?

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  • dhcpd pool exhaustion - What's the result?

    - by jarmund
    I have a DHCP server that serves leases to several houndred, maybe up to a thousand, different clients on an average day. The pool consists of 242 IPs, and due to the highly dynamic nature of the network, it's enough 99% of the time (most devices are gone from the network in a few minutes), despite having a lease time of 3600. Now, imagine if more clients than that connect to the network during an hour. The sollution is obvious: Decrease lease time, or increase the DHCP pool, however, what i would like to know: What happens when dhcpd has exhausted the pool? Are new DHCP requests simply ignored?

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  • My control key doesn't work, how do I fix it??

    - by Blaine LaFreniere
    My control key on the right doesn't work how it should. E.g. Right ctrl + T won't open new tabs in firefox, right ctrl + w won't switch windows in vim, etc. I know the key isn't physically broken, because xev shows that the right ctrl key generates events, but it just isn't responding as I expect it to in applications. Screenshot: http://i46.tinypic.com/33w1h76.png I tried Kim's answer but it still doesn't work. blaine@blaine-laptop ~ $ xmodmap -pke | grep 105 keycode 105 = Control_R Control_R Control_R Control_R Control_R Tried to map as Control_L as well, didn't work. The computer is a laptop, I am unable to plug the keyboard in to another computer.

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  • One incorrect SSH login attempt locks me out for an hour...

    - by Legend
    I've never observed this problem neither did any of my colleagues trying to SSH into the same system. If I try logging into my server using a wrong username and then press ^C to terminate or exhaust my password attempts, I am locked out for at least an hour. Is there something I can do on my end to fix this problem?

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  • Can't ping through default gateway

    - by Andrew G.H.
    I have the following configuration: Routing table on M3 is: Destination Gateway Genmask Flags MSS Window irtt Iface 0.0.0.0 192.168.2.1 0.0.0.0 UG 0 0 0 eth1 192.168.2.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 192.168.3.0 0.0.0.0 255.255.255.192 U 0 0 0 eth0 Routing table on M1 is: Destination Gateway Genmask Flags MSS Window irtt Iface 0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth1 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 192.168.2.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 So basically M3's gateway is M1, and M1's gateway is M2's wireless internet interface. If I ping 8.8.8.8 from M1, everything is ok, replies are received. Pinging from M1 to M3 and viceversa is also possible. I have configured M1 as gateway trafic forwarder using firestarter package and stopped firewall with it. iptables policies are ACCEPT for everything. Problem: I have tried ping-ing ip 8.8.8.8 from M3 but without success. What could be the source of this problem?

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  • How can I limit the upload/download bandwidth on my CentOS server?

    - by Dan Nestor
    How can I limit the upload and download bandwidth on my CentOS server? This is a box with a single interface, eth0. Ideally, I would like a command-line solution (I've been trying to use tc), something that I could easily switch on and off in a script. So far I've been trying to do something like tc filter add dev eth0 protocol ip prio 50 u32 police rate 100kbit burst 10240 drop but I'm obviously missing a lot of knowledge and information. Can somebody help with a quick one-liner? Many thanks, Dan

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  • Is segfault signal always sent to application

    - by noonex
    My application usually crashes and prints stack to log if received segfault signal. But in some environment the 'dmesg' shows segfault messages related to my application, but application uptime is much older. Can segfault be suppressed and application doesn't receive signal? Or what errors from dmesg can mean ?

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