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  • Protecting DNS entries from duplicate hostnames entering network

    - by Aszurom
    Given a Windows domain, with DNS provided by a server on that domain, I am curious about what happens if a guest joins the network attempting to use the same hostname as an existing server, and then tries to register that hostname in DNS with its DHCP address. Can this potentially be disruptive to the server, or is Windows DNS smart enough to spot a duplicate hostname and deny an auto-register request from that host? What actions can be taken to ensure that DNS for a hostname cannot be altered?

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  • Finding latest successful logins and failed attempts to a CentOS server

    - by ahmad
    I'm looking for a log file or any service to report the latest login attempts which have failed due to username/password miss match. Is there such utility available for CentOS? (built-in is preferred) My second question, and more generally, I need a log file of penetration attempts to my server. Ideally, this log should contain all attempts including logins, httpd activities, and other conventional open ports.

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  • Has anyone run an objective comparison of Nessus and Skipfish

    - by jldugger
    We recently set up Nessus, but the annual cost is not cheap. Recently Google published SkipFish which appears to compete in the area of webapps. As best I can tell, Nessus operates via a large database of known exploits. And, as best as I can tell, Skipfish automatically generates vulnerability tests. Has anyone done a comparison of the effectiveness of these two approaches yet?

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  • Firefox: This connection is untrusted + Behind corporate firewall

    - by espais
    I've seen some similar issues strewn throughout Google's results about this, but none seem to be corporate-specific. I continually get the 'This connection is untrusted' screen every time I attempt to log into a secure site...for instance Gmail. This is pretty annoying as sometimes I have to go through the process of adding the exception two or three times before it finally lets me into Gmail. I am behind a corporate firewall, going through an internal proxy server to get to the Internet, so there is no possibility for me to update the firewall...etc. Does anybody know a way around this? Can it simply be disabled (and is that safe)? EDIT I'm going to reopen this question with a bit of new information. I have been using Google Chrome lately until today, and one thing that I noticed was that I never had this issue when using either Chrome or Internet Explorer. Is there something that these other browsers do that I need to manually do in FF?

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  • outgoing DNS flood targeted to non-ISP hosts

    - by radudani
    Below is the specific traffic monitored at the network perimeter and originating from a user PC on Vista platform. My question is not about the effects of the flood, but about the nature of the source of it. Is this some known infection, or just an application went out of control? a standard NOD32 scan didn't find anything, as the user told me. Thank you for any hint. 14:40:10.115876 IP 192.168.7.42.4122 > 67.228.0.181.53: S 2742536765:2742536765(0) win 16384 <mss 1460,nop,nop,sackOK> 14:40:10.115943 IP 192.168.7.42.4124 > 67.228.181.207.53: S 3071079888:3071079888(0) win 16384 <mss 1460,nop,nop,sackOK> 14:40:10.116015 IP 192.168.7.42.4126 > 67.228.0.181.53: S 3445199428:3445199428(0) win 16384 <mss 1460,nop,nop,sackOK> 14:40:10.116086 IP 192.168.7.42.4128 > 67.228.181.207.53: S 2053198691:2053198691(0) win 16384 <mss 1460,nop,nop,sackOK> 14:40:10.116154 IP 192.168.7.42.4130 > 67.228.0.181.53: S 2841660872:2841660872(0) win 16384 <mss 1460,nop,nop,sackOK> 14:40:10.116222 IP 192.168.7.42.4132 > 67.228.181.207.53: S 3150822465:3150822465(0) win 16384 <mss 1460,nop,nop,sackOK> 14:40:10.116290 IP 192.168.7.42.4134 > 67.228.0.181.53: S 1692515021:1692515021(0) win 16384 <mss 1460,nop,nop,sackOK> 14:40:10.116358 IP 192.168.7.42.4136 > 67.228.181.207.53: S 3358275919:3358275919(0) win 16384 <mss 1460,nop,nop,sackOK> 14:40:10.116430 IP 192.168.7.42.4138 > 67.228.0.181.53: S 930184999:930184999(0) win 16384 <mss 1460,nop,nop,sackOK> 14:40:10.116498 IP 192.168.7.42.4140 > 67.228.181.207.53: S 1504984630:1504984630(0) win 16384 <mss 1460,nop,nop,sackOK> 14:40:10.116566 IP 192.168.7.42.4142 > 67.228.0.181.53: S 546074424:546074424(0) win 16384 <mss 1460,nop,nop,sackOK> 14:40:10.116634 IP 192.168.7.42.4144 > 67.228.181.207.53: S 4241828590:4241828590(0) win 16384 <mss 1460,nop,nop,sackOK> 14:40:10.116702 IP 192.168.7.42.4146 > 67.228.0.181.53: S 668634627:668634627(0) win 16384 <mss 1460,nop,nop,sackOK> 14:40:10.116769 IP 192.168.7.42.4148 > 67.228.181.207.53: S 3768119461:3768119461(0) win 16384 <mss 1460,nop,nop,sackOK> 14:40:10.117360 IP 192.168.7.42.4111 > 67.228.0.181.53: 12676 op8 Resp12*- [2128q][|domain] 14:40:10.117932 IP 192.168.7.42.4112 > 67.228.181.207.53: 44190 op7 NotAuth*|$ [29103q],[|domain] 14:40:10.118726 IP 192.168.7.42.4113 > 67.228.0.181.53: 49196 inv_q [b2&3=0xeea] [64081q] [28317a] [43054n] [23433au] Type63482 (Class 5889)? M-_^OS>M-JM-m^_M-i.[|domain] 14:40:10.119934 IP 192.168.7.42.4114 > 67.228.181.207.53: 48131 updateMA Resp12$ [43850q],[|domain] 14:40:10.121164 IP 192.168.7.42.4115 > 67.228.0.181.53: 46330 updateM% [b2&3=0x665b] [23691a] [998q] [32406n] [11452au][|domain] 14:40:10.121866 IP 192.168.7.42.4116 > 67.228.181.207.53: 34425 op7 YXRRSet* [39927q][|domain] 14:40:10.123107 IP 192.168.7.42.4117 > 67.228.0.181.53: 56536 notify+ [b2&3=0x27e6] [59761a] [23005q] [33341n] [29705au][|domain] 14:40:10.123961 IP 192.168.7.42.4118 > 67.228.181.207.53: 19323 stat% [b2&3=0x14bb] [32491a] [41925q] [2038n] [5857au][|domain] 14:40:10.132499 IP 192.168.7.42.4119 > 67.228.0.181.53: 50432 updateMA+ [b2&3=0x6bc2] [10733a] [9775q] [46984n] [15261au][|domain] 14:40:10.133394 IP 192.168.7.42.4120 > 67.228.181.207.53: 2171 notify Refused$ [26027q][|domain] 14:40:10.134421 IP 192.168.7.42.4121 > 67.228.0.181.53: 25802 updateM NXDomain*-$ [28641q][|domain] 14:40:10.135392 IP 192.168.7.42.4122 > 67.228.181.207.53: 2073 updateMA+ [b2&3=0x6d0b] [43177a] [54332q] [17736n] [43636au][|domain] 14:40:10.136638 IP 192.168.7.42.4123 > 67.228.0.181.53: 15346 updateD+% [b2&3=0x577a] [61686a] [19106q] [15824n] [37833au] Type28590 (Class 64856)? [|domain] 14:40:10.137265 IP 192.168.7.42.4124 > 67.228.181.207.53: 60761 update+ [b2&3=0x2b66] [43293a] [53922q] [23115n] [11349au][|domain] 14:40:10.148122 IP 192.168.7.42.4125 > 67.228.0.181.53: 3418 op3% [b2&3=0x1a92] [51107a] [60368q] [47777n] [56081au][|domain]

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  • Restricted blogspot account. Unable to subscribe using Google Reader?

    - by keisimone
    I used blogspot.com and restricted its viewership to just its authors. However I cannot use Google Reader to subscribe to the RSS feed. Is there a workaround? I need to be notified somehow whenever somebody posts to that private blog. I am one of its authors. My blogspot.com allows me to set the readership to just its authors. So that is what I have done. I did not do any password protect settings at all.

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  • How to disable SELinux in Red Hat?

    - by Neuquino
    I'm having some issues with shared libraries in a Red Hat installation, for example when I try to run sqlplus: error while loading shared libraries: /u01/app/oracle/product/11.2.0/db/lib/libclntsh.so.11.1: cannot restore segment prot after reloc: Permission denied How can permanently disable SELinux? Thanks in advance

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  • What folders to encrypt with EFS on Windows 7 laptop?

    - by Joe Schmoe
    Since I've been using my laptop more as a laptop recently (carrying it around) I am now evaluating my strategy to protect confidential information in case it is stolen. Keep in mind that my laptop is 6 years old (Lenovo T61 with 8 GB or RAM, 2GHz dual core CPU). It runs Windows 7 fine but it is no speedy demon. It doesn't support AES instruction set. I've been using TrueCrypt volume mounted on demand for really important stuff like financial statements forever. Nothing else is encrypted. I just finished my evaluation of EFS, Bitlocker and took a closer look at TrueCrypt again. I've come to conclusion that boot partition encryption via Bitlocker or TrueCrypt is not worth the hassle. I may decide in the future to use Bitlocker or TrueCrypt to encrypt one of the data volumes but at this point I intend to use EFS to encrypt parts of my hard drive that contain data that I wouldn't want exposed. The purpose of this post is to get your feedback about what folders should be encrypted from the general point of view (of course everyone will have something specific in addition) Here is what I thought of so far (will update if I think of something else): 1) AppData\Local\Microsoft\Outlook - Outlook files 2) AppData\Local\Thunderbird\Profiles and AppData\Roaming\Thunderbird\Profiles- Thunderbird profiles, not sure yet where exactly data is stored. 3) AppData\Roaming\Mozilla\Firefox\Profiles\djdsakdjh.default\bookmarkbackups - Firefox bookmark backup. Is there a separate location for "main" Firefox bookmark file? I haven't figured it out yet. 4) Bookmarks for Chrome (don't know where it's bookmarks are) and Internet Explorer ($Username\Favorites) - I don't really use them but why not to secure that as well. 5) Downloads\, My Documents\ and My Pictures\ folders I don't think I need to encrypt, say, latest service pack for Visual Studio. So I will probably create subfolder called "Secure" in all of these folders and set it to "Encrypted". Anything sensitive I will save in this folder. Any other suggestions? Again, this is from the point of view of your "regular office user".

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  • What is your favorite password storage tool?

    - by Marcel Levy
    Aside from personal passwords, I'm always juggling a number of project-specific passwords, including those for network, web and database authentication. Some authentication can be managed with ssh keys and the like, but everywhere I've worked I also faced the need for the management of passwords that need to be available to a number of different people. So what do you use, either for personal or team-based password management? Personally I'd like to hear about cross-platform tools, but I'm sure other people would be satisfied with Windows-only solutions. I know the stackoverflow podcast tackled this issue in #7 and #9, but I'm hoping we can come up with the definitive answer here. Update: Even though this question was asked before its sibling site existed, you should probably add your two cents to the more active question over at superuser, which is a more appropriate venue for this.

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  • Suggestion for auditd set-up

    - by JVerstry
    Hi, I am trying to learn about securing a Linux box (I am using Ubuntu). Auditd is recommended for monitoring activities on the node. I have managed to install it, but I can't find much information about proper set-up to secure my node. How should I set-up auditd to make my node more secure? What should I monitor? Why? I am looking for set-up examples and recommendation from experienced administrators. Thanks!

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  • PHP scripts owned by www-data

    - by matnagel
    I am always running php scripts on a dedicated server as user "webroot". It would be easier for coding and administration if the scripts were owned by www-data, the apache2 user. Also feels more simple and clean. There is no ftp on this box and there are no other users or sites. Why not have the php scripts owned by www-data? If there is anything against it, what is the worst that can happen?

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  • What is the rules of ports?

    - by Jake
    Hi, I mean the port to connecting.. just like SSH port, nginx port, etc. Im not clear about the port. So far I can see port running not more than 5 characters (port xxxxx). So, when choosing port number, what is the rules and the character limit of port? Is 5 characters the maximum? Thanks.

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  • Recommended apps for new desktop machine install?

    - by Eddie Parker
    I'm hoping to harness the collective tips of superuser to gather recommended apps/configurations to keep a new desktop clean, virus free, and hopefully lower software rot. I ask because I've recently come across tools like dropbox, deepfreeze, returnil, etc, and I'm curious what other ones are out there to protect a new box. I personally am interested in Windows, but feel free to comment on whatever OS you'd like, freeware or otherwise. Ideally specify the price/OS in your answer(s).

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  • Monitor the shell activity of a user on your Unix system?

    - by Joseph Turian
    Trust, but verify. Let's say I want to hire someone a sysadmin, and give them root access to my Unix system. I want to disable X windows for them, only allow shell usage (through SSH, maybe), so that all operations they perform will be through the shell (not mouse operations). I need a tool that will log to a remote server all commands they issue, as they issue them. So even if they install a back door and cover their tracks, that will be logged remotely. How do I disable everything but shell access? Is there a tool for instantaneously remotely logging commands as they are issued?

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  • httpd high cpu usage slowing down server response

    - by max
    my client has a image sharing website with about 100.000 visitor per day it has been slowed down considerably since this morning when i checked processes i've notice high cpu usage from http .... some has suggested ddos attack ... i'm not a webmaster and i've no idea whts going on top top - 20:13:30 up 5:04, 4 users, load average: 4.56, 4.69, 4.59 Tasks: 284 total, 3 running, 281 sleeping, 0 stopped, 0 zombie Cpu(s): 12.1%us, 0.9%sy, 1.7%ni, 69.0%id, 16.4%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 16037152k total, 15875096k used, 162056k free, 360468k buffers Swap: 4194288k total, 888k used, 4193400k free, 14050008k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 4151 apache 20 0 277m 84m 3784 R 50.2 0.5 0:01.98 httpd 4115 apache 20 0 210m 16m 4480 S 18.3 0.1 0:00.60 httpd 12885 root 39 19 4296 692 308 S 13.0 0.0 11:09.53 gzip 4177 apache 20 0 214m 20m 3700 R 12.3 0.1 0:00.37 httpd 2219 mysql 20 0 4257m 198m 5668 S 11.0 1.3 42:49.70 mysqld 3691 apache 20 0 206m 14m 6416 S 1.7 0.1 0:03.38 httpd 3934 apache 20 0 211m 17m 4836 S 1.0 0.1 0:03.61 httpd 4098 apache 20 0 209m 17m 3912 S 1.0 0.1 0:04.17 httpd 4116 apache 20 0 211m 17m 4476 S 1.0 0.1 0:00.43 httpd 3867 apache 20 0 217m 23m 4672 S 0.7 0.1 1:03.87 httpd 4146 apache 20 0 209m 15m 3628 S 0.7 0.1 0:00.02 httpd 4149 apache 20 0 209m 15m 3616 S 0.7 0.1 0:00.02 httpd 12884 root 39 19 22336 2356 944 D 0.7 0.0 0:19.21 tar 4054 apache 20 0 206m 12m 4576 S 0.3 0.1 0:00.32 httpd another top top - 15:46:45 up 5:08, 4 users, load average: 5.02, 4.81, 4.64 Tasks: 288 total, 6 running, 281 sleeping, 0 stopped, 1 zombie Cpu(s): 18.4%us, 0.9%sy, 2.3%ni, 56.5%id, 21.8%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 16037152k total, 15792196k used, 244956k free, 360924k buffers Swap: 4194288k total, 888k used, 4193400k free, 13983368k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 4622 apache 20 0 209m 16m 3868 S 54.2 0.1 0:03.99 httpd 4514 apache 20 0 213m 20m 3924 R 50.8 0.1 0:04.93 httpd 4627 apache 20 0 221m 27m 4560 R 18.9 0.2 0:01.20 httpd 12885 root 39 19 4296 692 308 S 18.9 0.0 11:51.79 gzip 2219 mysql 20 0 4257m 199m 5668 S 18.3 1.3 43:19.04 mysqld 4512 apache 20 0 227m 33m 4736 R 5.6 0.2 0:01.93 httpd 4520 apache 20 0 213m 19m 4640 S 1.3 0.1 0:01.48 httpd 4590 apache 20 0 212m 19m 3932 S 1.3 0.1 0:00.06 httpd 4573 apache 20 0 210m 16m 3556 R 1.0 0.1 0:00.03 httpd 4562 root 20 0 15164 1388 952 R 0.7 0.0 0:00.08 top 98 root 20 0 0 0 0 S 0.3 0.0 0:04.89 kswapd0 100 root 39 19 0 0 0 S 0.3 0.0 0:02.85 khugepaged 4579 apache 20 0 209m 16m 3900 S 0.3 0.1 0:00.83 httpd 4637 apache 20 0 209m 15m 3668 S 0.3 0.1 0:00.03 httpd ps aux [root@server ~]# ps aux | grep httpd root 2236 0.0 0.0 207524 10124 ? Ss 15:09 0:03 /usr/sbin/http d -k start -DSSL apache 3087 2.7 0.1 226968 28232 ? S 20:04 0:06 /usr/sbin/http d -k start -DSSL apache 3170 2.6 0.1 221296 22292 ? R 20:05 0:05 /usr/sbin/http d -k start -DSSL apache 3171 9.0 0.1 225044 26768 ? R 20:05 0:17 /usr/sbin/http d -k start -DSSL apache 3188 1.5 0.1 223644 24724 ? S 20:05 0:03 /usr/sbin/http d -k start -DSSL apache 3197 2.3 0.1 215908 17520 ? S 20:05 0:04 /usr/sbin/http d -k start -DSSL apache 3198 1.1 0.0 211700 13000 ? S 20:05 0:02 /usr/sbin/http d -k start -DSSL apache 3272 2.4 0.1 219960 21540 ? S 20:06 0:03 /usr/sbin/http d -k start -DSSL apache 3273 2.0 0.0 211600 12804 ? S 20:06 0:03 /usr/sbin/http d -k start -DSSL apache 3279 3.7 0.1 229024 29900 ? S 20:06 0:05 /usr/sbin/http d -k start -DSSL apache 3280 1.2 0.0 0 0 ? Z 20:06 0:01 [httpd] <defun ct> apache 3285 2.9 0.1 218532 21604 ? S 20:06 0:04 /usr/sbin/http d -k start -DSSL apache 3287 30.5 0.4 265084 65948 ? R 20:06 0:43 /usr/sbin/http d -k start -DSSL apache 3297 1.9 0.1 216068 17332 ? S 20:06 0:02 /usr/sbin/http d -k start -DSSL apache 3342 2.7 0.1 216716 17828 ? S 20:06 0:03 /usr/sbin/http d -k start -DSSL apache 3356 1.6 0.1 217244 18296 ? S 20:07 0:01 /usr/sbin/http d -k start -DSSL apache 3365 6.4 0.1 226044 27428 ? S 20:07 0:06 /usr/sbin/http d -k start -DSSL apache 3396 0.0 0.1 213844 16120 ? S 20:07 0:00 /usr/sbin/http d -k start -DSSL apache 3399 5.8 0.1 215664 16772 ? S 20:07 0:05 /usr/sbin/http d -k start -DSSL apache 3422 0.7 0.1 214860 17380 ? S 20:07 0:00 /usr/sbin/http d -k start -DSSL apache 3435 3.3 0.1 216220 17460 ? S 20:07 0:02 /usr/sbin/http d -k start -DSSL apache 3463 0.1 0.0 212732 15076 ? S 20:08 0:00 /usr/sbin/http d -k start -DSSL apache 3492 0.0 0.0 207660 7552 ? S 20:08 0:00 /usr/sbin/http d -k start -DSSL apache 3493 1.4 0.1 218092 19188 ? S 20:08 0:00 /usr/sbin/http d -k start -DSSL apache 3500 1.9 0.1 224204 26100 ? R 20:08 0:00 /usr/sbin/http d -k start -DSSL apache 3501 1.7 0.1 216916 17916 ? S 20:08 0:00 /usr/sbin/http d -k start -DSSL apache 3502 0.0 0.0 207796 7732 ? S 20:08 0:00 /usr/sbin/http d -k start -DSSL apache 3505 0.0 0.0 207660 7548 ? S 20:08 0:00 /usr/sbin/http d -k start -DSSL apache 3529 0.0 0.0 207660 7524 ? S 20:08 0:00 /usr/sbin/http d -k start -DSSL apache 3531 4.0 0.1 216180 17280 ? S 20:08 0:00 /usr/sbin/http d -k start -DSSL apache 3532 0.0 0.0 207656 7464 ? S 20:08 0:00 /usr/sbin/http d -k start -DSSL apache 3543 1.4 0.1 217088 18648 ? S 20:08 0:00 /usr/sbin/http d -k start -DSSL apache 3544 0.0 0.0 207656 7548 ? S 20:08 0:00 /usr/sbin/http d -k start -DSSL apache 3545 0.0 0.0 207656 7560 ? S 20:08 0:00 /usr/sbin/http d -k start -DSSL apache 3546 0.0 0.0 207660 7540 ? S 20:08 0:00 /usr/sbin/http d -k start -DSSL apache 3547 0.0 0.0 207660 7544 ? S 20:08 0:00 /usr/sbin/http d -k start -DSSL apache 3548 2.3 0.1 216904 17888 ? S 20:08 0:00 /usr/sbin/http d -k start -DSSL apache 3550 0.0 0.0 207660 7540 ? S 20:08 0:00 /usr/sbin/http d -k start -DSSL apache 3551 0.0 0.0 207660 7536 ? S 20:08 0:00 /usr/sbin/http d -k start -DSSL apache 3552 0.2 0.0 214104 15972 ? S 20:08 0:00 /usr/sbin/http d -k start -DSSL apache 3553 6.5 0.1 216740 17712 ? S 20:08 0:00 /usr/sbin/http d -k start -DSSL apache 3554 6.3 0.1 216156 17260 ? S 20:08 0:00 /usr/sbin/http d -k start -DSSL apache 3555 0.0 0.0 207796 7716 ? S 20:08 0:00 /usr/sbin/http d -k start -DSSL apache 3556 1.8 0.0 211588 12580 ? S 20:08 0:00 /usr/sbin/http d -k start -DSSL apache 3557 0.0 0.0 207660 7544 ? S 20:08 0:00 /usr/sbin/http d -k start -DSSL apache 3565 0.0 0.0 207660 7520 ? S 20:08 0:00 /usr/sbin/http d -k start -DSSL apache 3570 0.0 0.0 207660 7516 ? S 20:08 0:00 /usr/sbin/http d -k start -DSSL apache 3571 0.0 0.0 207660 7504 ? S 20:08 0:00 /usr/sbin/http d -k start -DSSL root 3577 0.0 0.0 103316 860 pts/2 S+ 20:08 0:00 grep httpd httpd error log [Mon Jul 01 18:53:38 2013] [error] [client 2.178.12.67] request failed: error reading the headers, referer: http://akstube.com/image/show/27023/%D9%86%DB%8C%D9%88%D8%B4%D8%A7-%D8%B6%DB%8C%D8%BA%D9%85%DB%8C-%D9%88-%D8%AE%D9%88%D8%A7%D9%87%D8%B1-%D9%88-%D9%87%D9%85%D8%B3%D8%B1%D8%B4 [Mon Jul 01 18:55:33 2013] [error] [client 91.229.215.240] request failed: error reading the headers, referer: http://akstube.com/image/show/44924 [Mon Jul 01 18:57:02 2013] [error] [client 2.178.12.67] Invalid method in request [Mon Jul 01 18:57:02 2013] [error] [client 2.178.12.67] File does not exist: /var/www/html/501.shtml [Mon Jul 01 19:21:36 2013] [error] [client 127.0.0.1] client denied by server configuration: /var/www/html/server-status [Mon Jul 01 19:21:36 2013] [error] [client 127.0.0.1] File does not exist: /var/www/html/403.shtml [Mon Jul 01 19:23:57 2013] [error] [client 151.242.14.31] request failed: error reading the headers [Mon Jul 01 19:37:16 2013] [error] [client 2.190.16.65] request failed: error reading the headers [Mon Jul 01 19:56:00 2013] [error] [client 151.242.14.31] request failed: error reading the headers Not a JPEG file: starts with 0x89 0x50 also there is lots of these in the messages log Jul 1 20:15:47 server named[2426]: client 203.88.6.9#11926: query (cache) 'www.xxxmaza.com/A/IN' denied Jul 1 20:15:47 server named[2426]: client 203.88.6.9#26255: query (cache) 'www.xxxmaza.com/A/IN' denied Jul 1 20:15:48 server named[2426]: client 203.88.6.9#20093: query (cache) 'www.xxxmaza.com/A/IN' denied Jul 1 20:15:48 server named[2426]: client 203.88.6.9#8672: query (cache) 'www.xxxmaza.com/A/IN' denied Jul 1 15:45:07 server named[2426]: client 203.88.6.9#39352: query (cache) 'www.xxxmaza.com/A/IN' denied Jul 1 15:45:08 server named[2426]: client 203.88.6.9#25382: query (cache) 'www.xxxmaza.com/A/IN' denied Jul 1 15:45:08 server named[2426]: client 203.88.6.9#9064: query (cache) 'www.xxxmaza.com/A/IN' denied Jul 1 15:45:09 server named[2426]: client 203.88.23.9#35375: query (cache) 'xxxmaza.com/A/IN' denied Jul 1 15:45:09 server named[2426]: client 203.88.6.9#61932: query (cache) 'www.xxxmaza.com/A/IN' denied Jul 1 15:45:09 server named[2426]: client 203.88.23.9#4423: query (cache) 'xxxmaza.com/A/IN' denied Jul 1 15:45:09 server named[2426]: client 203.88.6.9#40229: query (cache) 'www.xxxmaza.com/A/IN' denied Jul 1 15:45:14 server named[2426]: client 203.88.23.9#46128: query (cache) 'xxxmaza.com/A/IN' denied Jul 1 15:45:14 server named[2426]: client 203.88.6.10#62128: query (cache) 'www.xxxmaza.com/A/IN' denied Jul 1 15:45:14 server named[2426]: client 203.88.23.9#35240: query (cache) 'xxxmaza.com/A/IN' denied Jul 1 15:45:14 server named[2426]: client 203.88.6.10#36774: query (cache) 'www.xxxmaza.com/A/IN' denied Jul 1 15:45:14 server named[2426]: client 203.88.23.9#28361: query (cache) 'xxxmaza.com/A/IN' denied Jul 1 15:45:14 server named[2426]: client 203.88.6.10#14970: query (cache) 'www.xxxmaza.com/A/IN' denied Jul 1 15:45:14 server named[2426]: client 203.88.23.9#20216: query (cache) 'www.xxxmaza.com/A/IN' denied Jul 1 15:45:14 server named[2426]: client 203.88.23.10#31794: query (cache) 'xxxmaza.com/A/IN' denied Jul 1 15:45:14 server named[2426]: client 203.88.23.9#23042: query (cache) 'www.xxxmaza.com/A/IN' denied Jul 1 15:45:14 server named[2426]: client 203.88.6.10#11333: query (cache) 'www.xxxmaza.com/A/IN' denied Jul 1 15:45:14 server named[2426]: client 203.88.23.10#41807: query (cache) 'xxxmaza.com/A/IN' denied Jul 1 15:45:14 server named[2426]: client 203.88.23.9#20092: query (cache) 'www.xxxmaza.com/A/IN' denied Jul 1 15:45:14 server named[2426]: client 203.88.6.10#43526: query (cache) 'www.xxxmaza.com/A/IN' denied Jul 1 15:45:15 server named[2426]: client 203.88.23.9#17173: query (cache) 'www.xxxmaza.com/A/IN' denied Jul 1 15:45:15 server named[2426]: client 203.88.23.9#62412: query (cache) 'www.xxxmaza.com/A/IN' denied Jul 1 15:45:15 server named[2426]: client 203.88.23.10#63961: query (cache) 'xxxmaza.com/A/IN' denied Jul 1 15:45:15 server named[2426]: client 203.88.23.10#64345: query (cache) 'xxxmaza.com/A/IN' denied Jul 1 15:45:15 server named[2426]: client 203.88.23.10#31030: query (cache) 'xxxmaza.com/A/IN' denied Jul 1 15:45:16 server named[2426]: client 203.88.6.9#17098: query (cache) 'www.xxxmaza.com/A/IN' denied Jul 1 15:45:16 server named[2426]: client 203.88.6.9#17197: query (cache) 'www.xxxmaza.com/A/IN' denied Jul 1 15:45:16 server named[2426]: client 203.88.6.9#18114: query (cache) 'www.xxxmaza.com/A/IN' denied Jul 1 15:45:16 server named[2426]: client 203.88.6.9#59138: query (cache) 'www.xxxmaza.com/A/IN' denied Jul 1 15:45:17 server named[2426]: client 203.88.6.9#28715: query (cache) 'www.xxxmaza.com/A/IN' denied Jul 1 15:48:33 server named[2426]: client 203.88.23.9#26355: query (cache) 'xxxmaza.com/A/IN' denied Jul 1 15:48:34 server named[2426]: client 203.88.23.9#34473: query (cache) 'xxxmaza.com/A/IN' denied Jul 1 15:48:34 server named[2426]: client 203.88.23.9#62658: query (cache) 'xxxmaza.com/A/IN' denied Jul 1 15:48:34 server named[2426]: client 203.88.23.9#51631: query (cache) 'xxxmaza.com/A/IN' denied Jul 1 15:48:35 server named[2426]: client 203.88.23.9#54701: query (cache) 'xxxmaza.com/A/IN' denied Jul 1 15:48:36 server named[2426]: client 203.88.6.10#63694: query (cache) 'xxxmaza.com/A/IN' denied Jul 1 15:48:36 server named[2426]: client 203.88.6.10#18203: query (cache) 'xxxmaza.com/A/IN' denied Jul 1 15:48:37 server named[2426]: client 203.88.6.10#9029: query (cache) 'xxxmaza.com/A/IN' denied Jul 1 15:48:38 server named[2426]: client 203.88.6.10#58981: query (cache) 'xxxmaza.com/A/IN' denied Jul 1 15:48:38 server named[2426]: client 203.88.6.10#29321: query (cache) 'xxxmaza.com/A/IN' denied Jul 1 15:49:47 server named[2426]: client 119.160.127.42#42355: query (cache) 'xxxmaza.com/A/IN' denied Jul 1 15:49:49 server named[2426]: client 119.160.120.42#46285: query (cache) 'xxxmaza.com/A/IN' denied Jul 1 15:49:53 server named[2426]: client 119.160.120.42#30696: query (cache) 'xxxmaza.com/A/IN' denied Jul 1 15:49:54 server named[2426]: client 119.160.127.42#14038: query (cache) 'xxxmaza.com/A/IN' denied Jul 1 15:49:55 server named[2426]: client 119.160.120.42#33586: query (cache) 'xxxmaza.com/A/IN' denied Jul 1 15:49:56 server named[2426]: client 119.160.127.42#55114: query (cache) 'xxxmaza.com/A/IN' denied

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  • How to encrypt an USB stick?

    - by Dimitri C.
    When storing personal data on a USB stick, data needs to be encrypted to ensure privacy. Regrettably, this is far from easy to do without introducing a lot of overhead; ideally, the whole encryption process should done automatically. Does anyone know of a convenient way to encrypt the data on a USB drive? Update: I am using Windows Vista, although I would prefer a cross-platform solution.

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  • unable to sniff traffic despite network interface being in monitor or promiscuous mode

    - by user65126
    I'm trying to sniff out my network's wireless traffic but am having issues. I'm able to put the card in monitor mode, but am unable to see any traffic except broadcasts, multicasts and probe/beacon frames. I have two network interfaces on this laptop. One is connected normally to 'linksys' and the other is in monitor mode. The interface in monitor mode is on the right channel. I'm not associated with the access point because, as I understand, I don't need to if using monitor mode (vs promiscuous). When I try to ping the router ip, I'm not seeing that traffic show up in wireshark. Here's my ifconfig settings: daniel@seasonBlack:~$ ifconfig eth0 Link encap:Ethernet HWaddr 00:1f:29:9e:b2:89 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:16 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:112 errors:0 dropped:0 overruns:0 frame:0 TX packets:112 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:8518 (8.5 KB) TX bytes:8518 (8.5 KB) wlan0 Link encap:Ethernet HWaddr 00:21:00:34:f7:f4 inet addr:192.168.1.116 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::221:ff:fe34:f7f4/64 Scope:Link UP BROADCAST RUNNING MTU:1500 Metric:1 RX packets:9758 errors:0 dropped:0 overruns:0 frame:0 TX packets:4869 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:3291516 (3.2 MB) TX bytes:677386 (677.3 KB) wlan1 Link encap:UNSPEC HWaddr 00-02-72-7B-92-53-33-34-00-00-00-00-00-00-00-00 UP BROADCAST NOTRAILERS PROMISC ALLMULTI MTU:1500 Metric:1 RX packets:112754 errors:0 dropped:0 overruns:0 frame:0 TX packets:101 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:18569124 (18.5 MB) TX bytes:12874 (12.8 KB) wmaster0 Link encap:UNSPEC HWaddr 00-21-00-34-F7-F4-00-00-00-00-00-00-00-00-00-00 UP RUNNING MTU:0 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) wmaster1 Link encap:UNSPEC HWaddr 00-02-72-7B-92-53-00-00-00-00-00-00-00-00-00-00 UP RUNNING MTU:0 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) Here's my iwconfig settings: daniel@seasonBlack:~$ iwconfig lo no wireless extensions. eth0 no wireless extensions. wmaster0 no wireless extensions. wlan0 IEEE 802.11bg ESSID:"linksys" Mode:Managed Frequency:2.437 GHz Access Point: 00:18:F8:D6:17:34 Bit Rate=54 Mb/s Tx-Power=27 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=68/70 Signal level=-42 dBm Noise level=-69 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0 wmaster1 no wireless extensions. wlan1 IEEE 802.11bg Mode:Monitor Frequency:2.437 GHz Tx-Power=27 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality:0 Signal level:0 Noise level:0 Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0 Here's how I know I'm on the right channel: daniel@seasonBlack:~$ iwlist channel lo no frequency information. eth0 no frequency information. wmaster0 no frequency information. wlan0 11 channels in total; available frequencies : Channel 01 : 2.412 GHz Channel 02 : 2.417 GHz Channel 03 : 2.422 GHz Channel 04 : 2.427 GHz Channel 05 : 2.432 GHz Channel 06 : 2.437 GHz Channel 07 : 2.442 GHz Channel 08 : 2.447 GHz Channel 09 : 2.452 GHz Channel 10 : 2.457 GHz Channel 11 : 2.462 GHz Current Frequency=2.437 GHz (Channel 6) wmaster1 no frequency information. wlan1 11 channels in total; available frequencies : Channel 01 : 2.412 GHz Channel 02 : 2.417 GHz Channel 03 : 2.422 GHz Channel 04 : 2.427 GHz Channel 05 : 2.432 GHz Channel 06 : 2.437 GHz Channel 07 : 2.442 GHz Channel 08 : 2.447 GHz Channel 09 : 2.452 GHz Channel 10 : 2.457 GHz Channel 11 : 2.462 GHz Current Frequency=2.437 GHz (Channel 6)

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  • MSTSC RDP over the public internet

    - by stuart Brand
    My first question so please be gentle :) I have a client who is insisting that they have to let their third party vendor support access to there server directly from the internet via RDP. Our policy does not allow direct access to the infrastructure from outside of the data centre for administration except from an approved VPN connection and then virtual desktop there on to the servers. I am now in the situation where I must give good reasons why it is dangerous to use RDP over the public internet. any help would be appreciated Thanks in advance Stuart

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  • Should windows services be created with custom users, or should I use one of LocalSystem/LocalServic

    - by Justin Dearing
    I'm asking the question in general for the average custom developed NT service or unix OSS daemon ported to windows with SCM support. However, at the moment my immediate concern is for mongodb. From my experience with UNIX I like all my services to run as different unprivileged users. The way this has translated to windows is as follows: Create a local (or domain if it has to talk to SQL server) windows user with a long random password (lately an ASCII85 encoded guid generated from a different machine). Set it to next expire and forbid it from changing its password. Remove that user from the "Users Group". Grant that user "Login as a Service" permission. Give it read permission to the folder where the app resides, and write permission to the logs and data files the applications use. Assign the user to the service. Troubleshoot until the service starts. My feeling is that the unprivileged users are less powerful than the 3 special service users. I also feel that by isolating which users run which services, I would limit collateral damage if a way to compromise one service was found.

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  • IT Audit checklist

    - by PHLiGHT
    I recently have taken on the position of a one man show for a company that is going to have an audit. The network isn't anywhere close to prepared and I have been looking for a general audit checklist since one hasn't been provided by the auditors and haven't found much good information out there. Does anyone have a nice template that will give me a good starting point. I know that this will be highly customized to the company but a starting point will be helpful to outline to management just how much work is needed. Thanks,

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  • Why do browsers have so many possible exploits?

    - by Beau Martínez
    When browsing I am ocassionally given warnings about pages that host malware "that could damage my computer". I am seriously perplexed as to why, in 2010, browsers still have possible exploits and can be cracked. My question is "Why?". I'm assuming it's because of the quick development that occured in the browser wars which were unsufficiently tested, but I'm unsure. Surely WebKit would have patched all the issues in KHTML, or Gecko sorted out the flaws in Netscape's engine, and the IE coders sorted through their codebase to eliminate possible flaws? (Somewhat related: http://superuser.com/questions/117770/which-browser-is-the-most-secure-research-and-practically-based.)

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  • Adobe Reader Wants Sensitive Email Details

    - by KDM
    When I run Adobe Reader, it tells me: Either there is no default mail client or the current mail client cannot fulfill the messaging request. Please run Microsoft Outlook and set it as the default mail client. I have a couple of issues with this: 1) It presupposes everyone has Microsoft Office installed. Not all home users have the budget or inclination for this. 2) It presupposes everyone wants Microsoft Outlook to be their default mail client. 3) I have Microsoft Office (incl. Outlook) installed and set as my default mail client. Even if I make it the default mail client from within the Adobe Reader Preferences, that doesn't stop the dialog appearing. 4) I thought I'd give Adobe Reader a new email address in the preferences, just to get it to stop bugging me. I notice, though, that it want's the SMTP and POP addresses and the account password? They have got to be kidding? I just want to view PDF files. How do I get the message to go away without telling Adobe my life story, giving them my mother's maiden name, my favourite movie, my place of birth, the name of my first goldfish and emptying the contents of my wallet for them?

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  • secure email crashes outlook 2007

    - by Josh
    I have a number of secure emails sent to my outlook 2007 client. most arrive fine and display the prompt with regards to granting access to the certificate and then open. today i received two that when i try and open them they crash outlook. i have tried restarting outlook and my computer. please can you give me some ideas of what it could be or how i can troubleshoot this issue. i am working on Vista Utlimate x64. thanks. Josh

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