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  • Grep a strange acirc character

    - by John Hunt
    I have this character appearing in places in some files I have:  (if you can't see it or it looks like a question mark it's the Acirc character (capital A with a circumflex over it)) I simply want to grep replace this char with a space, however when I do this: grep --color -ri  myproject.php Putty gets very confused, as does grep. As I understand it there's probably a way to use an escaped hex code with grep.. does anyone know how? EDIT: The character is showing up on my web page as a weird <?>. The http headers for the page specify utf-8 as does the meta character set and I still see the strange character. In putty it appears as a space (putty also set to utf-8.) When I copy from vim and paste into grep it simply doesn't find it. Cheers, John

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  • Symmetrix gatekeepers on Solaris 10

    - by Milner
    I have some Solaris machines that are connected to EMC Symmetrix for SAN storage. Apparently the Symm has a gatekeeper device that is used with the symmetrix CLI. We don't need the CLI, but I have these gatekeeper devices that constantly fill /var/adm/messages and the like with corrupt label errors. Is there anything I can do (short of deleting the devices on machine start) to get rid of them? Or should I just try to get our SAN guy to get the installer for the CLI? These things are getting annoying, and the devfsadmd daemon keeps rediscovering them on boot.

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  • mdadm superblock hiding/shadowing partition

    - by Kjell Andreassen
    Short version: Is it safe to do mdadm --zero-superblock /dev/sdd on a disk with a partition (dev/sdd1), filesystem and data? Will the partition be mountable and the data still there? Longer version: I used to have a raid6 array but decided to dismantle it. The disks from the array are now used as non-raid disks. The superblocks were cleared: sudo mdadm --zero-superblock /dev/sdd The disks were repartitioned with fdisk and filesystems created with mfks.ext4. All disks where mounted and everything worked fine. Today, a couple of weeks later, one of the disks is failing to be recognized when trying to mount it, or rather the single partition on it. sudo mount /dev/sdd1 /mnt/tmp mount: special device /dev/sdd1 does not exist fdisk claims there to be a partition on it: sudo fdisk -l /dev/sdd Disk /dev/sdd: 2000.4 GB, 2000398934016 bytes 255 heads, 63 sectors/track, 243201 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0xb06f6341 Device Boot Start End Blocks Id System /dev/sdd1 1 243201 1953512001 83 Linux Of course mount is right, the device /dev/sdd1 is not there, I'm guessing udev did not create it because of the mdadm data still on it: sudo mdadm --examine /dev/sdd /dev/sdd: Magic : a92b4efc Version : 1.2 Feature Map : 0x0 Array UUID : b164e513:c0584be1:3cc53326:48691084 Name : pringle:0 (local to host pringle) Creation Time : Sat Jun 16 21:37:14 2012 Raid Level : raid6 Raid Devices : 6 Avail Dev Size : 3907027120 (1863.02 GiB 2000.40 GB) Array Size : 15628107776 (7452.06 GiB 8001.59 GB) Used Dev Size : 3907026944 (1863.02 GiB 2000.40 GB) Data Offset : 2048 sectors Super Offset : 8 sectors State : clean Device UUID : 3ccaeb5b:843531e4:87bf1224:382c16e2 Update Time : Sun Aug 12 22:20:39 2012 Checksum : 4c329db0 - correct Events : 1238535 Layout : left-symmetric Chunk Size : 512K Device Role : Active device 3 Array State : AA.AAA ('A' == active, '.' == missing) My mdadm --zero-superblock apparently didn't work. Can I safely try it again without losing data? If not, are there any suggestion on what do to? Not starting mdadm at all on boot might be a (somewhat unsatisfactory) solution.

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  • Configure Postfix to send emails "via" a server [migrated]

    - by Zach Russell
    This is a question related to postfix and WordPress (but is more of a postfix question). To give some background, on a professional WordPress host (like WP Engine) when I receive WordPress Mail Notifications (comments, form submissions, new users, etc...) it will say in gmail sent from "predefined wordpress admin email" via email.wpengine.com. This is not blocked by Google's spam filters or anything. I have a cloud server set up and a WordPress site installed on it. When I send email from [email protected] it gets sent to spam and when I send email as [email protected] (me) it fails to send completely. This does, however send fine on WordPress. This goal of this it so send all emails via mail.wptemple.com and have them not get caught by spam filters. How can I accomplish this?

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  • How important are PTR records for Email Servers?

    - by Kyle Brandt
    Does anyone know of any studies done to show how much email will be rejected if there is not ptr record for the SMTP banner name of an email server? Are reverse checks always done when enabled, or is it sometimes configured so if an spam program considers an email 'iffy', the reverse check is done?

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  • Configure FastCGI for Python

    - by Rob
    I have nginx running on a VM and I want to run a Trac site. I need to run a python FastCGI server, but I cannot tell which is the server to use. I have found the following: <a href="http://redmine.lighttpd.net/projects/spawn-fcgi">Lighttpd spawn-fcgi</a> But this seems to require that you compile lighttpd just to get the fcgi server, which is weird. <a href="http://svn.saddi.com/py-lib/trunk/fcgi.py">fcgi.py</a> But this one seems to be depreciated. At the very least it is poorly documented. <a href="http://trac.saddi.com/flup">flup</a> This one comes with dependencies on ubuntu (python-cheetah{a} python-mysqldb{a} python-webpy{a}) that seem unnecessary. Also poorly documented. Are their any recent guides for setting this up. Trac's own FastCGI setup page seems to miss some steps.

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  • Trying to configure domain-based access via htaccess file.

    - by kenja
    I've created an account with no-ip.com that registers my ip with a subdomain of their service. When I do an nslookup, I see that the service is working and that my domain is being shown. Now I want to provide access to that subdomain on the admin site of our server which is protected by htaccess IP restrictions. When I try to add the new domain to my script it does not work. Am I doing something wrong? I'm basically trying to make my laptop so it can log in from no matter when I'm at while still preventing all other IPs from accessing the site. ## password begin ## AuthName "Restricted Access" AuthUserFile /usr/www/users/site/.passwd AuthType Basic Require valid-user Order deny,allow Deny from all Allow from 69.1.122.161 mysubdomain.no-ip.org Satisfy All

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  • OraOps10.dll loading problem

    - by Rodnower
    Hello, I have ASP.NET web service built on windows 7 in 32 bit. All dependences of this service compiled in Release mode in x64 bit. Now, I'm installed it on windows 8 64 bit and when I'm access to this service I get error "Could not load OraOps10.dll". I doesn't succeed to find any thing about this problem with oracle client in context of x32-x64 bit incompatibility in internet. Have you any idea? Thank you very much.

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  • Storage device not found on ESX4 with AIC-9410

    - by Mads
    I am trying to install ESX 4.0 update 1 on a Supermicro X7DBR-3 system with an embedded AIC-9410 HBA (this HBA is listed on the HCG with Vendor ID 9005 and Device ID 041f) . All SATA controllers are disabled in the BIOS and the logical drive shows up in the Adaptec device summary during POST, however there is nothing listed on the Storage Device screen. The HBA itself is listed if I run esxcfg-info but not if I run esxcfg-scsidevs -a (under ESXi for that last command) Any ideas where I can look next or what might be wrong?

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  • What is causing a vm to exhibit packet loss?

    - by d03boy
    We have a pretty nice piece of hardware set up to run multiple virtual machines in vmware and one of the vm's is an instance of Windows Server 2003 running SQL Server 2005. For some reason we occasionally see 10-20 seconds of straight packet loss to this machine from remote machines (my workstation) as well as other vm's on the same physical hardware. I am using PingPlotter to keep a close eye on the packet loss. So far we've turned off flow control on the NIC but we are already running out of other things to try. What might be causing this and how can I identify the problem? Note: We also have another server with a very similar configuration with the same type of problem to a lesser extent (because its not used as heavily?)

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  • Outbound HTTP performance tuning recommendations

    - by Richard Gadsden
    I'll detail my exact setup below, but general recommendations for a better web-browsing experience will be useful. A nice checklist of things to try would be great! I have 600 users on a single site with an 8MB leased line. I get a lot of moans about the performance of "the internet" (ie web-browsing). What recommendations do the community have for speeding things up without just throwing more bandwidth at it? I expect I will end up buying some more, but good management tips are always valuable. My setup is this: Cisco PIX (515E) firewall on the edge of the network. It's just doing some basic NAT, and opening up a handful of ports to various bastion hosts (aka DMZ servers). The DMZ is just a switch that the servers are plugged into. ISA 2006 Enterprise array (two servers) connecting DMZ to the internal LAN, with WebSense Web Security filtering HTTP traffic so users can't look at porn or waste bandwidth on YouTube during working hours. I've done a few things - I've just switched my internal DNS over to use root hints, which halved DNS query latency from 500ms to 250ms. Well worth doing. I'm trying to cache more aggressively, but so much more of the internet is AJAXy and doesn't cache very well as compared to five years ago. Plus the 70GB of cache which felt like a lot a few years ago really isn't any more. I'm getting about 45% cache hits by number of requests, but only about 22% by size, ie larger objects are less likely to be cached. Latency seems to be part of the problem. Is that attributable to the bandwidth problem, or are there things I can look at to try to reduce latency even on heavily-loaded bandwidth?

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  • DNS Piority in home-use Routers

    - by DucDigital
    Force DNS on router instead of ClientSide DNS like OpenDNS or GooglePublicDNS Im trying to implement some site blocking using DNS, the hardware is simple Routers like Linksys and Netgear that you use in house for family purpose. Currently I tried to set a computer to opendns, while my router set to something else, when check using opendns.com/welcome, the computer is identified as opendns. and Vice versa, this time the computer didn't identified as opendns. Is it posible to force user to use our DNS instead of their setting DNS?

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  • DNS Piority in home-use Routers

    - by DucDigital
    Force DNS on router instead of ClientSide DNS like OpenDNS or GooglePublicDNS Im trying to implement some site blocking using DNS, the hardware is simple Routers like Linksys and Netgear that you use in house for family purpose. Currently I tried to set a computer to opendns, while my router set to something else, when check using opendns.com/welcome, the computer is identified as opendns. and Vice versa, this time the computer didn't identified as opendns. Is it posible to force user to use our DNS instead of their setting DNS?

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  • Can not join additional domain controllers

    - by Hosm
    Hi all, I had a dead PDC and another not so synced domain controller for my domain. using comments here link now the so called secondary domain controller has seized domain controls and I can verify it from dsa.msc that it is a domain controller. I set up another domain controller (win2003SRV) and about to promote an AD on it as a domain controller for my domain. When I try to join the new domain controller to the domain I face DNS problem. here is some more detail DNS was successfully queried for the service location (SRV) resource record used to locate a domain controller for domain DOMNAME.A.B: The query was for the SRV record for _ldap._tcp.dc._msdcs.DOMNAME.A.B The following domain controllers were identified by the query: update.DOMNAME.A.B Common causes of this error include: - Host (A) records that map the name of the domain controller to its IP addresses are missing or contain incorrect addresses. - Domain controllers registered in DNS are not connected to the network or are not running. For information about correcting this problem, click Help. it is worth noting that update.DOMNAME.A.B is the current domain controller to which I'd like to add another controller named PDC.DOMNAME.A.B Ip address of update.DOMNAME.A.B is 192.168.200.1 and for pdc.DOMNAME.A.B is 192.168.200.100 querying DNS on both machine return correct results. Any idea?

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  • Server IP Release Time

    - by DanSpd
    Hello, With router IP Address does not change at all as long as you do not touch modem. If computer is connected to modem directly IP changes every hour or so. Whats causing it and how to fix. P.S. I am talking about WAN IP and not LAN IP

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  • Website does not resolve in browser but traceroute is successful

    - by Colum
    I am trying to figure out an issue. My internet is working fine, but this one website is not resolving. It works via a proxy, traceroute works: 1 192.168.1.1 (192.168.1.1) 4.205 ms 0.568 ms 0.510 ms 2 * * * 3 67.59.255.13 (67.59.255.13) 10.583 ms 7.949 ms 7.557 ms 4 67.59.255.61 (67.59.255.61) 10.256 ms 9.576 ms 13.083 ms 5 64.15.8.126 (64.15.8.126) 9.943 ms 11.929 ms 11.452 ms 6 64.15.0.217 (64.15.0.217) 14.655 ms 14.092 ms 13.771 ms 7 64.15.0.118 (64.15.0.118) 33.201 ms 34.875 ms 36.544 ms 8 xe-6-0-3.ar1.ord1.us.nlayer.net (69.31.111.169) 34.027 ms 34.957 ms 34.231 ms 9 ae1-30g.cr1.ord1.us.nlayer.net (69.31.111.133) 82.683 ms 35.138 ms 37.592 ms 10 xe-3-0-0.cr2.iad1.us.nlayer.net (69.22.142.26) 41.657 ms 34.063 ms 34.519 ms 11 ae2-30g.ar2.iad1.us.nlayer.net (69.31.31.186) 35.780 ms 36.361 ms 33.968 ms 12 as33597.xe-3-0-7.ar2.iad1.us.nlayer.net (69.31.30.230) 35.086 ms as33597.xe-3-0-7.ar2.iad1.us.nlayer.net (69.31.30.234) 38.031 ms as33597.xe-3-0-7.ar2.iad1.us.nlayer.net (69.31.30.230) 36.833 ms 13 cr1.iad2.inforelay.net (66.231.176.246) 32.595 ms cr2.iad1.inforelay.net (66.231.176.10) 31.771 ms cr1.iad2.inforelay.net (66.231.176.246) 32.622 ms 14 cr1.iad2.inforelay.net (66.231.176.246) 32.956 ms 33.625 ms !X 41.058 ms 15 * cr1.iad2.inforelay.net (66.231.176.246) 35.312 ms !X * 16 * cr1.iad2.inforelay.net (66.231.176.246) 32.814 ms !X * 17 cr1.iad2.inforelay.net (66.231.176.246) 35.459 ms !X * 53.137 ms !X Ping returns this: Request timeout for icmp_seq 0 Request timeout for icmp_seq 1 Request timeout for icmp_seq 2 Request timeout for icmp_seq 3 Request timeout for icmp_seq 4 Request timeout for icmp_seq 5 Request timeout for icmp_seq 6 But what I can not figure out is why my browsers (Firefox, Safari, Opera) can not resolve the domain. I am on a Wifi connection. What could be the problem? BTW I am on a Mac (10.6.5)

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  • How to make Exchange 2010 use In-Reply-To and References headers as well as Thread-Index?

    - by Paul Wagland
    The problem that I have is simple. We have recently upgraded from Exchange 2003 to Exchange 2010. Everything went fine, and there are very few complaints. In Exchange 2003, some of our OWA users liked the Threading view, these users love the conversations view, especially with the cross-mailbox threading. The problem is that some of these users are now complaining that old e-mails that they got from systems like bugzilla were migrated across correctly threaded, but the new e-mails are not being correctly threaded. If I look at the mail source using an IMAP client then I can see that all of the mails that are turning up as being threaded have the (Microsoft specific) Thread-Index header, and the mails that are not getting grouped do not have this header. The question is, how can I make the webmail client respect the normal threading? That is, is there a way to Make the OWA client use the standard In-Reply-To and References headers, or Make Exchange generate the Thread-Index headers for Outlook and OWA to use?

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  • Rackmount temperature/humidity control

    - by Evan Plaice
    This may seem like a strange question because it involves a non-traditional approach. What I'm looking for is a standard rackmount cooling/humidity control module. The idea is to build a portable server rack (in a case) that can be deployed to the field but limit the cooling/temperature control requirements to just the case that the server gear is contained in. I understand that the chiller may warm it's surrounding environment so, as an additional approach, it will be possible to have a separate case for the chiller alone. Do these exist? What are they called? Where can I find one?

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  • Redhat 5.5: Multi-thread process only uses 1 CPU of the available 8

    - by Tonny
    Weird situation: Redhat Enterprise 5.5 (stock install, no updates, x64) on a HP z800 workstation. (Dual Xeon 2,2 Ghz. 8 cores, 16 if you count Hyper-threading. RH sees 16 cores.) We have an application that can utilize 1, 2 or 4 threads for heavy calculations. Somehow all these threads run on the same core at 100% load (the other 15 cores are nearly idle) so there is absolutely no benefit from the extra threads. In fact there is a slight slowdown as the threads get in each others way on the single core. How do I get them to run on separate cores (if possible)? Application is 64 bit. Can't change anything about the software except changing the threads setting. Is there some obscure Linux setting I can try to change? (I'm a True64 and Aix guy. I use Linux, but have no in depth knowledge of the process scheduling on Linux.)

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  • Server Administration

    - by Kassem
    Hi everyone, My client asked me for a job description of a system administration because I might be assigned this position along with the other guy I'm working with. To be honest, I do not know much about a System Administrator's job but I'm willing to learn. Questions: What are the security requirements of a server? * What are the key responsibilities in a system admin's job description? What are some of the day to day tasks of a system admin? What is the average monthly salary of a system admin? Note: I will be working inside a Windows environment. But your replies do not necessarily need to be constricted to a Windows environment. (*) Other software I know will be required are: Windows Server 2008 IIS 7.0 MS SQL Server .NET 4.0 Runtime Let me know if there are other things I should be aware of as well. Thanks!

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  • can't find port 22 traffic under VirtualBox

    - by telliott99
    I'm trying to learn to use tcpdump. I thought I'd eavesdrop on my ssh login. The setup is a bit unusual, I have OS X Lion running VirtualBox, with Ubuntu running in the VM. I have ssh enabled and can login from OS X normally: > ssh -p 22 10.0.1.2 -l telliott Welcome to Ubuntu 11.10 (GNU/Linux 3.0.0-17-generic i686) * Documentation: https://help.ubuntu.com/ 0 packages can be updated. 0 updates are security updates. Last login: Sat Mar 31 19:54:36 2012 from toms-mac-mini.local telliott@U32:~$ logout Connection to 10.0.1.2 closed. > I have not obfuscated the ssh port on Ubuntu. From OS X, stroke gives what I expect: > ./stroke 10.0.1.2 22 22 Port Scanning host: 10.0.1.2 Open TCP Port: 22 ssh So from OS X I do: > sudo tcpdump -i en1 -v port 22 Password: tcpdump: listening on en1, link-type EN10MB (Ethernet), capture size 65535 bytes Then I login from OS X to Ubuntu using ssh, but I see nothing with tcpdump. Here is ifconfig from Ubuntu: telliott@U32:~$ ifconfig eth1 Link encap:Ethernet HWaddr 08:00:27:d7:ba:0e inet addr:10.0.1.2 Bcast:10.0.1.255 Mask:255.255.255.0 inet6 addr: fe80::a00:27ff:fed7:ba0e/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:799 errors:0 dropped:0 overruns:0 frame:0 TX packets:465 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:96863 (96.8 KB) TX bytes:68638 (68.6 KB) Where are the packets I was hoping to see? Thanks for any help.

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  • Is bonding mode=5 a solution against MAC flapping?

    - by Yuri
    There is two are interconnected Cisco WS-2950T. By the one GBIC port on first switch connected a first NIC of bonding interface, and by the one GBIC port on second switch connected a second NIC of bonding interface. Of course the both switches sees the bonding MAC-address only on one interface (eg it is GBIC on first switch) and all incoming traffic for bonding interface passes through this GBIC. But in "mode=5" all outgoing traffic are distributed between the all interfaces that make bond. In this case, the packets will be dropped from the second switch and anyway will going through the first switch? Or the division will be working?

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  • Apache Reverse Proxy not working inside a VirtualHost running a Mono Web Application

    - by Arwen
    I have a mono web application running with this virtual host below. It is running on Apache 2.2.20 / Ubuntu 11.10. I tried to add a reverse proxy inside this virtualhost so I can make asynchronous or AJAX type calls back to this same domain. My asynchronous requests would have problems in many browsers calling services that are on another domain (cross domain requests problem). I am wanting to do reverse proxy calls to this other service using http://www.whatever.com/monkey/. So, I added the directive and top directive to try to make this work. It is weird though...nothing I do seems to have any effect. I can put the exact same markup in my default website virtualhost file and it works great. What is the deal? Are some of these Mono directives causing problems? <VirtualHost *:80> ServerName www.whatever.com ServerAlias whatever.com *.whatever.com ServerAdmin [email protected] DocumentRoot /home/myuser/web/whatever ProxyRequests off <Proxy *> Order allow,deny Allow from all </Proxy> <Location /monkey/> ProxyPass http://www.google.com/ ProxyPassReverse http://www.google.com/ </Location> MonoServerPath www.whatever.com "/usr/bin/mod-mono-server2" MonoSetEnv www.whatever.com MONO_IOMAP=all MonoApplications www.whatever.com "/:/home/myuser/web/whatever" <Location "/"> Allow from all Order allow,deny MonoSetServerAlias www.whatever.com SetHandler mono SetOutputFilter DEFLATE SetEnvIfNoCase Request_URI "\.(?:gif|jpe?g|png)$" no-gzip dont-vary </Location> <IfModule mod_deflate.c> AddOutputFilterByType DEFLATE text/html text/plain text/xml text/javascript </IfModule> </VirtualHost>

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