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  • Fedora 15: em1 recently dissapeared and hostapd no longer serves internet to wirelessly connected devices

    - by Daniel K
    I have a laptop running hostapd, phpd, and mysql. This laptop uses an Ethernet connection to connect to the internet and acts as a wireless access point for my workplace's wifi devices. After installing some software and reconnecting my Ethernet elsewhere, my "em1" device is no longer present and wirelessly connected devices can no longer reach the internet. The software I recently installed is: pptp, pptpd, and updated some fedora libraries. I have also recently moved my desk and laptop to another location and thus had to reconnect the Ethernet elsewhere. Wifi devices no longer have access to the internet. Wirelessly connected devices are able to successfully log into the laptop, showing full strength, correct SSID, and uses the proper password. However, when I tried to connect to a site like google, the request times out. The device "em1" also no longer appears on my machine. Running: # ifup em1 will give me the following output: ERROR : [/etc/sysconfig/network-scripts/ifup-eth] Device em1 does not seem to be present, delaying initialization. And running: # dhclient em1 has the following output: Cannot find device "em1" When I run # dmesg|grep renamed, I get the following: renamed network interface eth0 to p4p1. I've tried to connect to the internet through p4p1 directly from the laptop and was successful. However, my wireless devices connected to my laptop are not able to connect to the internet. I have uninstalled pptp and pptpd using # yum erase ... but the problem still persists. To install pptp I used: # yum install pptp To install pptpd I did the following: # rpm -Uvh http://poptop.sourceforge.net/yum/stable/fc15/pptp-release-current.noarch.rpm # yum install pptpd To update my fedora libraries I used: # yum check-update # yum update EDIT: Running # route produces the following results: Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface default 10.11.200.1 0.0.0.0 UG 0 0 0 p4p1 10.11.200.0 * 255.255.252.0 U 0 0 0 p4p1 172.16.100.0 * 255.255.255.0 U 0 0 0 wlan0

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  • Postfix as mail relay for web servers?

    - by Ben Carleton
    Hi all, I want to set up Postfix to relay mail from a group of webservers. I would like to limit senders by IP so I can restrict the box to only my webservers, so I don't have an open relay and don't have to worry about authentication. So, what I guess I need is to limit inbound access but allow mail to be sent to any outbound address. I've looked through the docs and don't even know where to start, so any tips would be appreciated. Thanks!

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  • Error headers: ap_headers_output_filter() after putting cache header in htaccess file

    - by Brad
    Receiving error: [debug] mod_headers.c(663): headers: ap_headers_output_filter() after I included this within the htaccess file: # 6 DAYS <FilesMatch "\.(ico|pdf|flv|jpg|jpeg|png|gif|js|css|swf)$"> Header set Cache-Control "max-age=518400, public" </FilesMatch> # 2 DAYS <FilesMatch "\.(xml|txt)$"> Header set Cache-Control "max-age=172800, public, must-revalidate" </FilesMatch> # 2 HOURS <FilesMatch "\.(html|htm)$"> Header set Cache-Control "max-age=7200, must-revalidate" </FilesMatch> Any help is appreciated as to what I could do to fix this?

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  • Running Flash on a headless Solaris box

    - by Marty Pitt
    Our build server is a Solaris box, and I'm trying to run a suite of FlexUnit tests as part of the automated build process. This works by compiling a swf movie with a suite of automated unit tests. The build script launches this movie, which automatically begins running the tests. Results of each test are sent back to the launching script across a port, and written out to a local xml file. Once the tests are completed, the movie closes down, and the build script interrogates the results to see if all the tests passed. The FlexUnit wiki provides information about how to to acheive this on a Unix server, by using Xvnc to provide a virtual space for the flash movie to run its tests in. I've provided this information through to our sys admin team, (along with the link to the article), and I've been told that because this is a Solaris box, we can't use that approach - Xvnc isn't supported on Solaris. Unfortunately, I know very little about servers, *nix vs Solaris, or Xvnc. Can someone please provide some advice about how we can achieve the same outcome on a Solaris box?

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  • How can I prevent firefox from using bitmap fonts at certain zoom levels?

    - by Ryan Thompson
    In firefox 3.6 on Ubuntu 9.10, certain sites seem to use bitmap fonts for any fixed-width fonts, but only at specific zoom levels. This site and other stackexchange sites are among the affected sites, and of course the default zoom level is affected. At unaffected zoom levels, I get the expected smooth curvy fonts. How can I make firefox use the nice curvy smooth fonts at all zoom levels?

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  • Mounting both /dev/sda and /dev/sda1 - how can this be?

    - by itsadok
    I work on an Amazon EC2 instance that somebody else set up. We have an EBS volume mounted on /dev/sda, even though the root device is already on /dev/sda1, and we're also using `/dev/sda2' user@server:~$ mount /dev/sda1 on / type ext3 (rw) ... (snip) /dev/sda2 on /mnt type ext3 (rw) /dev/sda on /vol type xfs (rw,noatime) ... This doesn't seem to fit with what I know about the way /dev/ works. How is this possible, and more importantly: will this cause trouble in the future? I'm running ubuntu 9.04 jaunty.

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  • btrfs won't run from cron

    - by Mikkel
    I'm trying to set up a cron job to create a btrfs subvolume snapshot of my root partition. The command works perfectly if I run it from the command line, but nothing happens at the scheduled cron time. I've tried piping to logger and redirecting stdout/stderr to file, and not only is there no content, the file I'm logging to isn't even created. The cron command I have is as follows: 0 0 * * * /sbin/btrfs subvolume snapshot / "/snapshots/$(date +%Y-%m-%d)" I've tried prefixing it with /bin/bash, but that makes no difference. What am I missing?

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  • Server not configured error

    - by Ivan Slaughter
    I'm using Plesk 8.3 for my hosting account. Server said : Server Default page If you see this page it means: 1. hosting for this domain is not configured or 2. there's no such domain registered in Plesk What you can do: * Using Plesk, you can create domains with web hosting on a single physical server. what left on my setting?

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  • CPU Affinity on ARM processors

    - by dsljanus
    I am using some RaspberryPI boards for a data acquisition system. They are nice boards, with plenty of community support around them, but they are really slow. I am thinking of gradually replacing them with ODROID multicore boards, with the Samsung Exynos processors. I have some experience using taskset to set CPU affinity on my servers because I am always running Node.js applications that are by definition single threaded. Now, is it possible to do this on an ARM board? I do not see why it would not in theory, but I have doubts over how well it is going to work. Does anyone have experience with this kind of hack? Also, I would appreciate any comments about ARM CPUs and how they differ from x86.

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  • SASL - Plaintext password not accepted - Encrypted works

    - by leviathanus
    I have a very strange issue! SASL does not work properly, as it does not accept plain-text passwords (like Outlook sends them) Oct 2 10:35:09 srf cyrus/imap[4119]: accepted connection Oct 2 10:35:09 srf cyrus/imap[4119]: badlogin: [217.XX.XXX.140] plaintext [email protected] SASL(-1): generic failure: checkpass failed Now I switch to "Encrypted password" in Thunderbird. I have the same issue as Outlook above on Thunderbird if I turn on "Plain Password"): Oct 2 10:40:40 srf cyrus/imap[14644]: accepted connection Oct 2 10:40:41 srf cyrus/imap[14622]: login: [217.XX.XXX.140] [email protected] CRAM-MD5 User logged in Same with Postfix: Without Oct 2 10:42:48 srf postfix/smtpd[17980]: connect from unknown[217.XX.XXX.140] Oct 2 10:42:48 srf postfix/smtpd[17980]: warning: SASL authentication failure: cannot connect to saslauthd server: Permission denied Oct 2 10:42:48 srf postfix/smtpd[17980]: warning: SASL authentication failure: Password verification failed Oct 2 10:42:48 srf postfix/smtpd[17980]: warning: unknown[217.XX.XXX.140]: SASL PLAIN authentication failed: generic failure With "Encrypted password": Oct 2 10:45:27 srf postfix/smtpd[21872]: connect from unknown[217.XX.XXX.140] Oct 2 10:45:28 srf postfix/smtpd[21872]: 50B3A332AAB: client=unknown[217.XX.XXX.140], sasl_method=CRAM-MD5, [email protected] Oct 2 10:45:28 srf postfix/cleanup[21899]: 50B3A332AAB: message-id=<[email protected]> Oct 2 10:45:28 srf postfix/qmgr[6181]: 50B3A332AAB: from=<[email protected]>, size=398, nrcpt=1 (queue active) Oct 2 10:45:28 srf postfix/smtpd[21872]: disconnect from unknown[217.XX.XXX.140] Config: /etc/imapd.conf:sasl_mech_list:LOGIN PLAIN CRAM-MD5 and /etc/postfix/sasl/smtpd.conf:mech_list: LOGIN PLAIN CRAM-MD5 I have no idea where to dig. Please advise.

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  • openldap make sure password does not contain username

    - by Ryan Horrisberger
    Is there a way using openldap to ensure that a user's password does not contain their name or their username? I know that you can use the ppolicy overlay pwdCheckModule by writing a C function to do password checking, but is this the best approach? It doesn't seem like many folks are doing password quality checking this way--the only example I've found is a github example which only does basic checking.

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  • tmpreaper, --protect and a non-root user

    - by nsg
    Hi, I'm a little confused. I have a download directory that I want to remove all files older then 30 days with tmpreaper. Just one problem, the directory in question is a separate partition with a lost+found directory, of course I need to keep it so I added --protect 'lost+found', the problem is that tmpreaper outputs: error: chdir() to directory 'lost+found' (inode 11) failed: Permission denied (PID 30604) Back from recursing down `lost+found'. Entry matching `--protect' pattern skipped. `lost+found' I have tried with other pattern like lost* and so on... I'm running tmpreaper as a non-root user because there is no reason for superuser privileges because I own all files (except lost+found). Are I'm forced to run tmpreaper as root? Or are my shell-skills not as good as I thought? I guess the problem is: tmpreaper will chdir(2) into each of the directories you've specified for cleanup, and check for files matching the <shell_pattern> there. It then builds a list of them, and uses that to protect them from removal. Any thought and/or advice? Edit: The command I'm trying to run is something like $ /usr/sbin/tmpreaper -t --protect 'lost+found' 30d /mydir 1> /dev/null error: chdir() to directory `lost+found' (inode 11) failed: Permission denied Edit 2: I read the source code for tmpreaper-1.6.13 and found this if (safe_chdir (dirname)) exit(1); and if (chdir (dirname)) { message (LOG_ERROR, "chdir() to directory `%s' (inode %lu) failed: %s\n", dirname, (u_long) sb1.st_ino, strerror (errno)); return 1; } So it seems tmpreaper needs to be able to chdir in to all directories, ignored or not. I see two options left Run tmpreaper as root Move the download directory Find a alternative tool (tmpwatch?) I will give it some more research before i make a choice.

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  • Reconstructing the disk order in RAID 6 with 7 disks

    - by rkotulla
    a little background to this question first: I am running a RAID-6 within a QNAP TS869L external RAID/NAS system. I started with 5 disks of 3 TB each back in the day, and later added another 2 disks of 3TB to the RAID. The QNAP internals handled the growing and re-syncing etc, and everything seemd to be perfectly fine. About 2 weeks ago, I had one of the disks (disk #5, disk #2 has gone bad in the mean time) fail, and somehow (I have no idea why), also disks 1 and 2 got kicked out of the array. I replaced disk #5, but the RAID didn't start working again. After some calls to QNAP technical support, they re-created the array (using mdadm --create --force --assume-clean ...), but the resulting array couldn't find a filesystem, and I was kindly referred to contact a data recovery company that I can't afford. After some digging through old log files, resetting the disk to factory default, etc, I found a few errors that were made during this re-create - I wish I still had some of the original metadata, but unfortunately i don't (I definitely learned that lesson). I'm currently at the point where I know the correct chunk-size (64K), metadata-version (1.0; factory default was 0.9, but from what I read 0.9 doesn't handle disks over 2 TB, mine are 3 TB), and I now find the ext4 filesystem that should be on the disks. Only variable left to determine is the right disk order! I started using the description found in answer #4 of "Recover RAID 5 data after created new array instead of re-using" but am a little confused on what the order should be for a proper RAID-6. RAID-5 is pretty well documented in a number of places, but RAID-6 much less so. Also, does the layout, i.e. distribution of parity and data chunks across the disks, change after the growing of the array from 5 to 7 disks, or does the re-sync re-organize them in such a way a native 7-disk RAID-6 would have been? Thanks some more mdadm output that might be helpful: mdadm version: [~] # mdadm --version mdadm - v2.6.3 - 20th August 2007 mdadm details from one of the disks in the array: [~] # mdadm --examine /dev/sda3 /dev/sda3: Magic : a92b4efc Version : 1.0 Feature Map : 0x0 Array UUID : 1c1614a5:e3be2fbb:4af01271:947fe3aa Name : 0 Creation Time : Tue Jun 10 10:27:58 2014 Raid Level : raid6 Raid Devices : 7 Used Dev Size : 5857395112 (2793.02 GiB 2998.99 GB) Array Size : 29286975360 (13965.12 GiB 14994.93 GB) Used Size : 5857395072 (2793.02 GiB 2998.99 GB) Super Offset : 5857395368 sectors State : clean Device UUID : 7c572d8f:20c12727:7e88c888:c2c357af Update Time : Tue Jun 10 13:01:06 2014 Checksum : d275c82d - correct Events : 7036 Chunk Size : 64K Array Slot : 0 (0, 1, failed, 3, failed, 5, 6) Array State : Uu_u_uu 2 failed mdadm details for the array in the current disk-order (based on my best guess reconstructed from old log-files) [~] # mdadm --detail /dev/md0 /dev/md0: Version : 01.00.03 Creation Time : Tue Jun 10 10:27:58 2014 Raid Level : raid6 Array Size : 14643487680 (13965.12 GiB 14994.93 GB) Used Dev Size : 2928697536 (2793.02 GiB 2998.99 GB) Raid Devices : 7 Total Devices : 5 Preferred Minor : 0 Persistence : Superblock is persistent Update Time : Tue Jun 10 13:01:06 2014 State : clean, degraded Active Devices : 5 Working Devices : 5 Failed Devices : 0 Spare Devices : 0 Chunk Size : 64K Name : 0 UUID : 1c1614a5:e3be2fbb:4af01271:947fe3aa Events : 7036 Number Major Minor RaidDevice State 0 8 3 0 active sync /dev/sda3 1 8 19 1 active sync /dev/sdb3 2 0 0 2 removed 3 8 51 3 active sync /dev/sdd3 4 0 0 4 removed 5 8 99 5 active sync /dev/sdg3 6 8 83 6 active sync /dev/sdf3 output from /proc/mdstat (md8, md9, and md13 are internally used RAIDs holding swap, etc; the one I'm after is md0) [~] # more /proc/mdstat Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] [multipath] md0 : active raid6 sdf3[6] sdg3[5] sdd3[3] sdb3[1] sda3[0] 14643487680 blocks super 1.0 level 6, 64k chunk, algorithm 2 [7/5] [UU_U_UU] md8 : active raid1 sdg2[2](S) sdf2[3](S) sdd2[4](S) sdc2[5](S) sdb2[6](S) sda2[1] sde2[0] 530048 blocks [2/2] [UU] md13 : active raid1 sdg4[3] sdf4[4] sde4[5] sdd4[6] sdc4[2] sdb4[1] sda4[0] 458880 blocks [8/7] [UUUUUUU_] bitmap: 21/57 pages [84KB], 4KB chunk md9 : active raid1 sdg1[6] sdf1[5] sde1[4] sdd1[3] sdc1[2] sda1[0] sdb1[1] 530048 blocks [8/7] [UUUUUUU_] bitmap: 37/65 pages [148KB], 4KB chunk unused devices: <none>

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  • Second network card configuration not working.

    - by Sebas
    I have 4 servers running Centos 5. All of them have two ethernet network cards. I have configured 192.168.1.x IP addresses on their eth0 card. They are all connected to the same switch using their eth0 card and they are all working. I have configured 10.72.11.x IP addresses on their eth1 card.They are all connected to the same switch - a different one from the switch used with eth0 card - using their eth1 card and they are NOT all working. Their configuration files is like: DEVICE=eth1 BOOTPROTO=static IPADDR=10.72.11.236 BROADCAST=10.72.11.191 NETMASK=255.255.255.192 NETWORK=10.72.11.128 HWADDR=84:2B:2B:55:4B:98 IPV6INIT=yes IPV6_AUTOCONF=yes ONBOOT=yes The interfase is starting and configured as I need. [root@sql1 network-scripts]# ifconfig eth0 Link encap:Ethernet HWaddr 84:2B:2B:55:4B:97 inet addr:192.168.1.105 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::862b:2bff:fe55:4b97/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:2981 errors:0 dropped:0 overruns:0 frame:0 TX packets:319 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:386809 (377.7 KiB) TX bytes:66134 (64.5 KiB) Interrupt:36 Memory:da000000-da012800 eth1 Link encap:Ethernet HWaddr 84:2B:2B:55:4B:98 inet addr:10.72.11.236 Bcast:10.72.11.191 Mask:255.255.255.192 UP BROADCAST MULTICAST MTU:1500 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:1000 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) Interrupt:48 Memory:dc000000-dc012800 I also added a route-eth1 file that looks like: 10.0.0.0/8 via 10.72.11.254 Routing looks fine to me: [root@sql1 network-scripts]# netstat -rn Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 10.72.11.192 0.0.0.0 255.255.255.192 U 0 0 0 eth1 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth1 10.0.0.0 10.72.11.254 255.0.0.0 UG 0 0 0 eth1 0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 eth0 But I cannot ping one server from the other. [root@sql1 network-scripts]# ping 10.72.11.235 PING 10.72.11.235 (10.72.11.235) 56(84) bytes of data. From 10.72.11.236 icmp_seq=1 Destination Host Unreachable From 10.72.11.236 icmp_seq=2 Destination Host Unreachable From 10.72.11.236 icmp_seq=3 Destination Host Unreachable From 10.72.11.236 icmp_seq=4 Destination Host Unreachable From 10.72.11.236 icmp_seq=5 Destination Host Unreachable From 10.72.11.236 icmp_seq=6 Destination Host Unreachable ^C --- 10.72.11.235 ping statistics --- 7 packets transmitted, 0 received, +6 errors, 100% packet loss, time 6033ms , pipe 3 What am I doing wrong?

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  • Why assign write and execute permissions to a group when executing web scripts?

    - by PeanutsMonkey
    If I have a script that is to be executed by the nobody user, why is there a need to assign group write and execute permissions. For example in the article at http://www.zzee.com/solutions/unix-permissions.shtml, it notes that the permission 755 should be assigned to scripts on a web server. I understand that the user nobody is treated as others and as the owner of the script I would like full permissions. Am I missing something?

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  • What info is really useful in my iptables log and how do I disable the useless bits?

    - by anthony01
    In my iptables rules files, I entered this at the end: -A INPUT -j LOG --log-level 4 --log-ip-options --log-prefix "iptables: " I DROP everything besides INPUT for SSH (port 22) I have a web server and when I try to connect to it through my browser, through a forbidden port number (on purpose), I get something like that in my iptables.log Sep 24 14:05:57 myserver kernel: [xx.xx] iptables: IN=eth0 OUT= MAC=aa:bb:cc SRC=yy.yy.yy.yy DST=xx.xx.xx.xx LEN=64 TOS=0x00 PREC=0x00 TTL=54 ID=59351 DF PROTO=TCP SPT=63776 DPT=1999 WINDOW=65535 RES=0x00 SYN URGP=0 Sep 24 14:06:01 myserver kernel: [xx.xx] iptables: IN=eth0 OUT= MAC=aa:bb:cc SRC= yy.yy.yy.yy DST=xx.xx.xx.xx LEN=48 TOS=0x00 PREC=0x00 TTL=54 ID=63377 DF PROTO=TCP SPT=63776 DPT=1999 WINDOW=65535 RES=0x00 SYN URGP=0 Sep 24 14:06:09 myserver kernel: [xx.xx] iptables: IN=eth0 OUT= MAC=aa:bb:cc SRC=yy.yy.yy.yy DST=xx.xx.xx.xx LEN=48 TOS=0x00 PREC=0x00 TTL=54 ID=55025 DF PROTO=TCP SPT=63776 DPT=1999 WINDOW=65535 RES=0x00 SYN URGP=0 Sep 24 14:06:25 myserver kernel: [xx.xx] iptables: IN=eth0 OUT= MAC=aa:bb:cc SRC=yy.yy.yy.yy DST=xx.xx.xx.xx LEN=48 TOS=0x00 PREC=0x00 TTL=54 ID=54521 DF PROTO=TCP SPT=63776 DPT=1999 WINDOW=65535 RES=0x00 SYN URGP=0 Sep 24 14:06:55 myserver kernel: [xx.xx] iptables: IN=eth0 OUT= MAC=aa:bb:cc SRC=yy.yy.yy.yy DST=xx.xx.xx.xx LEN=100 TOS=0x00 PREC=0x00 TTL=54 ID=35050 PROTO=TCP SPT=63088 DPT=22 WINDOW=33304 RES=0x00 ACK PSH URGP=0 Sep 24 14:06:55 myserver kernel: [xx.xx] iptables: IN=eth0 OUT= MAC=aa:bb:cc SRC=yy.yy.yy.yy DST=xx.xx.xx.xx LEN=52 TOS=0x00 PREC=0x00 TTL=54 ID=14076 PROTO=TCP SPT=63088 DPT=22 WINDOW=33264 RES=0x00 ACK URGP=0 Sep 24 14:06:55 myserver kernel: [xx.xx] iptables: IN=eth0 OUT= MAC=aa:bb:cc SRC=yy.yy.yy.yy DST=xx.xx.xx.xx LEN=52 TOS=0x00 PREC=0x00 TTL=54 ID=5277 PROTO=TCP SPT=63088 DPT=22 WINDOW=33248 RES=0x00 ACK URGP=0 Sep 24 14:06:56 myserver kernel: [xx.xx] iptables: IN=eth0 OUT= MAC=aa:bb:cc SRC=yy.yy.yy.yy DST=xx.xx.xx.xx LEN=100 TOS=0x00 PREC=0x00 TTL=54 ID=25501 PROTO=TCP SPT=63088 DPT=22 WINDOW=33304 RES=0x00 ACK PSH URGP=0 As you can see, I typed xx.xx.xx.xx:1999 in my browser, and it tried to connect until it timed out. 1) There are many similar lines for just one event. Do you think I need all of them? How would I avoid duplicates? 2) The last 4 lines are for my port 22. But since I allow port 22 INPUT for my web server, why are they here? 3) Do I need info like LEN,TOS,PREC and others? I'm trying to find a page that explains them one by one, by I can't find anything.

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  • Make `mount` choose a device

    - by o_O Tync
    I have a mount point — let it be /media/question — and two possible devices: a physical HDD and a remote NFS folder. Sometimes I plug the device in physically, in other cases I mount it via NFS. Is there a way to specify both of them in fstab so that executing mount /media/question will preferably choose physical volume, and when it's not available — NFS?

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  • How to remove Games on Fedora 14?

    - by user44212
    While installing the fedora desktop I had unchecked the Games and Entertainment section but I can still see the same Games options available in the menu. I tried checking the same in the Add/Remove Programs but I was not able to get the option for uninstalling the same. Games which are present are: AisleRiot Solitaire, lagno, Mines and Sudoku I would like to delete the games options available. Can someone help me doing the same?

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  • "iostat" command different in two equal machines

    - by Oz.
    We have several machines on Amazon (ec2) of the type c1.xlarge with 8 cpus, running the Amazon AMI. Details on the machine: 7 GB of memory 20 EC2 Compute Units (8 virtual cores with 2.5 EC2 Compute Units each) 1690 GB of instance storage 64-bit platform I/O Performance: High API name: c1.xlarge One out of the several machines is showing a high load average, since we have run the last yum upgrade a couple of weeks a go. We did not yet update the other machines, and everything looks normal on them. The strange thing is that the top command not showing any hint for the cause of the load. CPUs are - 4.8%us, 1.1%sy, 0.0%ni, 94.1%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st. Mem is about 1.5GB free. Any idea what could it be, or where else can we check? iostat command on the proper machine: avg-cpu: %user %nice %system %iowait %steal %idle 8.97 0.03 4.46 0.19 0.14 86.23 Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn xvdap1 1.60 0.69 55.38 587620 47254184 xvdfp2 2.64 1.10 61.04 934786 52091056 xvdfp4 0.86 0.19 41.72 163866 35601920 xvdfp1 4.37 36.59 73.89 31220810 63051504 xvdfp3 8.03 7.08 94.63 6045402 80749184 iostat command on problematic machine: avg-cpu: %user %nice %system %iowait %steal %idle 9.29 0.04 5.55 0.26 0.11 84.74 Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn xvdap1 2.13 3.34 68.85 246244 5077888 xvdfp1 7.60 74.31 104.88 5480362 7734840 xvdfp3 13.22 73.67 125.00 5433386 9218600 xvdfp4 1.11 0.76 65.08 55762 4799248 xvdfp2 4.16 3.31 99.17 243818 7313264 Many thanks for the help.

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  • How to interpret IOZone results?

    - by homer5439
    Here are the resuts of running IOZone on an ext3 filesystem on an LVM volume residing on a SAN LUN (it was ran with 5 parallel processes). "Throughput report Y-axis is type of test X-axis is number of processes" "Record size = 4 Kbytes " "Output is in Kbytes/sec" " Initial write " 81628.55 " Rewrite " 83354.72 " Read " 115595.02 " Re-read " 119306.09 " Reverse Read " 47684.20 " Stride read " 10011.09 " Random read " 16751.27 " Mixed workload " 5659.77 " Random write " 1661.85 " Pwrite " 36030.83 Now this is all nice and dandy, but my question is: how do I know whether the values are as good as they could be or there is something to tweak (and if so, what?) The actual usage I will have for that Logical Volume is to act as virtual disk for a VM.

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  • understanding mount -o bind

    - by Ionut
    Few questions after the following commands: mount -o bind /new_disk/home/user/ /home/user/ mount -o bind --no-mtab /new_disk/home/user/ /home/user/ What is the difference between the two commands other than " Mount without writing in /etc/mtab. This is necessary for example when /etc is on a read-only filesystem." What is the difference between mount -o bind and mount --bind ...if there are Let's suppose i don't know there is a partition mounted using -o bind --no-mtab...where can I find if there is any mound point with bind ? The only way i can detect this is grep user /proc/mounts but in that line there is no info abut bind. Thank you.

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  • debian 6 losing a large amount of packets

    - by Sc0rian
    I have a rather strange problem. We covered all the obvious hardware related issues (different nic, eth cable and switch) however I cannot seem to stop eth dropping packets. I have 4 servers all exactly the same. driver: e1000e version: 1.2.20-k2 firmware-version: 1.8-0 bus-info: 0000:06:00.0 They are all running the latest kernel(2.6.32-5-amd64). However they do this: RX packets:17073870634 errors:0 dropped:14147208 overruns:0 frame:0 another server: eth0 Link encap:Ethernet HWaddr e0:69:95:05:2f:cb inet addr:10.10.10.86 Bcast:10.10.10.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:5455209277 errors:0 dropped:375445 overruns:0 frame:0 TX packets:3666134366 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:6688414486673 (6.0 TiB) TX bytes:1611812171539 (1.4 TiB) Interrupt:20 Memory:d0600000-d0620000 eth1 Link encap:Ethernet HWaddr 00:1b:21:b7:7a:ce inet addr:10.10.0.86 Bcast:10.10.0.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:15473695728 errors:0 dropped:5808325 overruns:0 frame:0 TX packets:20112364421 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:9192378766434 (8.3 TiB) TX bytes:20216368266761 (18.3 TiB) Interrupt:17 Memory:d0280000-d02a0000 A massive amount of dropped packets. I have tried to load on the latest driver, 1.9.5. This did nothing. I'm not sure what else to do.

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  • Problems installing icinga-web

    - by Kungurov
    I'm using Ubuntu 10.04 LTS (64bit, Server), Apache 2.2.14 Following the instruction from the oficial icinga page http://docs.icinga.org/latest/en/index.html I installed the icinga-web-1.7.1 on my machine and configured a few hosts for test purposes. The Classic Interface runs as expected but the new Web Interface does not show any data. When I try: ps aux | grep ido2db | grep -v grep I get: icinga 27425 0.0 0.0 41464 600 ? Ss Jul27 0:00 /usr/local/icinga/bin/ido2db -c /usr/local/icinga/etc/ido2db.cfg which might indicate a problem with idomod/ido2db because according to the docs there should be at least 2 processes greped. Any ideas how to fix that?

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  • Debian Testing installs Iceweasel ESR (severely outdated)?

    - by Lucas Phillips
    I just reinstalled Debian Testing, and for some reason, instead of Iceweasel 25, I have 17. The installed and candidate versions are both 17.0.9esr-1~deb7u1. apt-get update && apt-get upgrade does nothing, and it seems that version 17 is the latest for this install. I was on Debian Testing before, and Iceweasel was at the latest version. Even Debian Stable had an Iceweasel version 20. Why would it be trying to install ESR now?

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  • How do ALSA and PulseAudio relate?

    - by Hanno Fietz
    While trying to get my sound to work, I was wondering about the roles of ALSA and PulseAudio. I have both installed and was wondering, for example, which of them needs to know about my sound card. Both seem to be able to use each other, there's a pulseaudio plugin for ALSA, and on my system, alsa shows up as a sound card in pulseaudio. Which of the two does what, are they alternatives or complementary?

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