Ubuntu Security :: How To Validate Web Page
May 7, 2010
How can one ensure that one is looking at the real web page? This is important if you are going to download an iso image or validate md5 sums.For example, the Ubuntu web page here:https://help.ubuntu.com/community/In...tion/MinimalCDHas information about certificates available in the URL bar. (If you look at the left of the URL, one can click on the certificate information.)Surprisingly, there is no such certificate information available at this other Ubuntu web page:
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Dec 20, 2010
I guess this is the right place to put questions about iptables, so forgive me if it is not.I have a MySQL database which I need to allow connections to: 1 - the internal network; 2 - the web server (Apache) connections;3 - A user who is out of this network in a range of dynamic IP.Let's suppose the range IP for this user is 179.4.247.0-179.4.247.254 and the server; where is MySQl and Apache is 60.22.30.232. This user will use the windows client MySQL tool to make connections into this database.
So I think these rule below allow connections to the internal network and apache:
iptables -A INPUT -i eth0 -m state state ESTABLISHED,RELATED -j ACCEPT
iptables -A INPUT -i eth1 -m state state ESTABLISHED,RELATED -j ACCEPT
[code]....
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Oct 13, 2010
I connect to the internet through a password-protected network which stores my login for one day (basically every morning I get a redirect to a website that prompts for a username and password). The problem is that since my homepage is also 'https://' I get chromium's 'This is probably not the webpage you are looking for!' message. Quite simply, I want chromium to trust the login site enough that it will simply proceed to it without confirmation without applying this reduced security to other sites.
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Mar 13, 2009
What is the easiest way to block one specifiek web page?Can I use the file /etc/deny host, or should I use another program to do this?I have already search the web andfound iptables, but that is to difficult for me, and I found squid
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Apr 13, 2011
Below is the print out of requests, with the website address "#.com". The requests are listed in the order in which they appear on the stats page. What does it mean?:
Code:
#.com/
#.com/?Mode=debug
[code]....
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Oct 5, 2010
I'm on the Slackware Security mailing list and I check the Slackware Security Advisory page daily because the mailing list, for me at least, is unreliable. After Firefox nagged me about a security update, I went to one of the FTP mirrors to check for an update and the Firefox update was there, but it still hasn't shown up on the official Slackware Security update page.
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Nov 19, 2010
In my logs for Apache I have lots and lots of failed attempts for incorrect incarnations of [URL]. None of them are anywhere near my alias for the index.php but yet phpmyadmin is broken. Is there away I can mess up robots like this. Send IP's that create multiple wrong page requests on my server back to their own IP address maybe? I would then just set thresholds to decide how strict to be. I did try fail-to-ban before but it is cryptic. I don't have it on this particular server.
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Nov 18, 2010
Just did an auto update. Among the list of things was an SSL update and now I can no longer connect to my MSN account in Pidgeon. I get an error "unable to validate certificate, the certificate for Omega.contacts.msn.com could not be validated. The certificate chain present is invalid."
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Jun 20, 2011
I have a shell running with user root.How can I test if the password I have ( lets say in a temp.txt file ) is the password root is using? If I do su it create a new shell without asking for password.
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Jan 25, 2011
I am having an XML file,i want to verify the file for its syntax,
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Feb 6, 2011
I'm testing some (selfwritten) installer scripts and I'd like to test it on several linux systems. From my script, I create a database and a user, which should have no rights but to the objects created on that database. I create that user with "grant usage on <dbname>.* to 'user'@'%' identified by After that, the user exists, but is not allowed to login with mysql client (same procedure works fine on debian systems). At first thought, I supposed, that I did a mistake on database setup, but then I realized, that I could connect from a different workstation using that user.
To me it looks very strange, that that user sees information_schema and test, but not the database, I used at user creation. From my script I check success of db and user creation by using the created user for connection and exec a 'show databases', which should show the new created db. What am I missing with mysql on Suse systems? Is my expectation wrong, did I make a mistake on database setup or what do I have to change to validate success of my script?
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Aug 19, 2010
Is there any inbuilt function other than strncmp which can evaluate a string.my requirement is " if all 10 values are spaces print 1 else if it contains some values print 2 else print 3.if i use strlen, even space is counted.I know that i can evaluate using for loop by checking 1 by 1 char, and using strcmp function, is there any other way?
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Jun 18, 2010
How can I validate an IPv6 address through javascript before using the IPv6 value in my cgi script?
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Aug 30, 2010
Slackware ver 12.2
Mysqld Ver 5.0.67
Apache/2.2.16
mod_auth_mysql-3.0.0 patched with apache22.diff
Symptom: when trying to use mod_auth_mysql to validate access to a directory via mysql DB, get prompted for user name and password but never find user and password combination despite using good values for login to mysql (same values in apache directory statements work as a cli login to mysql) and confirmed as valid in the user_info table (see values supplied to prompt in select * from user_info). Mysql general log does not show any attempt to access, strace does not show any attempt to setup local connection to mysql port. In a working version in Fedora I setup to test do see access described in the general log and strace shows a setup to mysql port. No useful messages in slackware apache access_log, error_log, mysql error logs, system logs.Have tried many combinations of mysqld variables, apache variables, mod_auth_mysql versions and variables, to no avail. Reinstalled apache, mysqld, etc.
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Aug 25, 2014
I need do a small interfaz, it works under bash. I read the user name and password from the terminal then i need validate this data.
My principal dude is:
how look in the /etc/passwd file a user and passwd?
The problem is the password is encrypted and i need compare with the data I read.
Only I can use BASH because it is school homework.
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May 19, 2011
I am trying to install a Red Hat cluster on my servers. In order to configure an heart bit between the servers I must give a valid multicast address. I wanted to know if there is a way to validate a multicast address before using it. For example if it is already in use i don't want to use it.
I read a little about it and there is a Perl module called IO::Socket::Multicast: [URL] There is a tool called mcasttrest.pl: [URL] Oracle use it to test multicast. But I am not sure what will do the trick in Red Hat cluster.
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Jan 10, 2011
We're trying to validate LDAP authentication from Linux against our AD global catalog servers. I'm seeing lots of LDAP query tools, but what I need is a free/open source application that can use LDAP to query AD to authenticate... something as simple as entering the hostname/IP of our AD/global catalog server and the port, then passing an AD username/password to it to validate logon capability. Anyone know of any software/apps that can do this? I don't want to get into configuring Samba for LDAP or trying to authenticate my actual Linux server again AD... I just want an application that uses LDAP for authentication.
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Oct 12, 2010
i am able to try ubuntu and everything works fine until i try to install. the menu comes up to the first page where it tells you to plug in your machine and make sure there is enough disk space and network connectivity. when i hit next on this page the mouse icon changes but the next page never loads. the longest i let it hang there was 2 hours. ive tried multiple times with the same result.
im running from a flash drive on an ASUS Eee PC 1001P-PU17
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Jul 11, 2010
10.04; 64 bit In Firefox, the size of the fonts varies greatly from site to site. Some are too small to read, others huge. Some headings and menus overlap.Screen size: 1152 x 864
My settings are:
Proportional: serif 14
Serif: Times New Roman
Sans serif: Arial
Monospace: Courier New 14
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Mar 26, 2011
Can anyone tell me how to name Page up & Page down buttons in global-keybindings to use the custom commands with these buttons?
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Nov 23, 2009
On FC11 64 bit with Adobe flash plugin for Linux installed, I see segfault errors from "npviewer" in /var/log/messages. The only browser I have tried yet, Firefox, has glitches every now and then. Sometimes it shows the title of a page in a tab, but the page is blank. This can even happen when I try the Google main page. Is it true that npviewer has something to do with Adobe flash? Is there a way to fix the problem? If it is caused by Adobe flash, is there a different plugin that will replace Adobe flash player?
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May 10, 2010
How can I find page hit and page miss ratio in linux fedora core 12?
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Mar 9, 2011
I have a problem printing to my HP printer.
What is my problem? I have a page (one page - text an graphic) to print. When I sent it to my printer it prints OK. When I sent it agian, the output is totally garbled. When I sent it again (a third time) it is OK. Sent it again (4th time) it is garbled. Sent it again ... you get the picture ;-). Alternating good and bad pages.
What is my setup? I run Fedora 14 with Cups 1.4.6. The printer is a HP Deskjet 940C. It is connected to a linksys wireless print server. It is configured in CUPS to use ipp printing. The driver I use in Cups is 'CUPS+Gutenprint v5.2.6 Simplified (color, 2-sided printing)'.
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Jun 8, 2009
I have apache httpd server on my Fedora 10I got 2 problems:First : I copied the web page files to its Document Root <var/www/html> & Disabled the default web page. But when I visit http:/localhost ，it shows up the list of files in <var/www/html> as if a ftp server browsed in web page. So how can I set http://localhost load my default web page index.html ?Second :I want to set up a web server on Internet through my router . I applied for DDNS account & input it into router correctly . I set virtual host in server to redirect any access from port 80 to 192.168.1.2:80 in LAN . Just for in case , I also download and running the DDNS software & installed it on PC 192.168.1.2 in LAN . My DDNS provider is oray.cn . It's a Chinese server provider . I don't think there is anything wrong with oray.cn . But if you need its information just visit oray.cn (Google can translate it for you). So I want to know did I miss something to set up a web server in this kind of situation
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Jul 26, 2010
All has been fine with my emails but today morning when i tried to log on I got an error message "You must be logged in to access this page, go to logon page" I dont understand why even when i supply my correct user name and password.
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May 8, 2009
wanted to know if i can execute commands on linux console through a web page and redirect it back to my web page !For example :if i send a query "ls"it should execute this command on my linux console and also redirect the list of the files to the web page from which i give the command !
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Mar 11, 2011
I would like to update to the newest distribution using dist‐upgrade.
Is there a way to validate if update was successfully?
For example I would like to work few days with updated version and check few log files for possible errors.
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Jul 6, 2011
I want to combine 4 ps(or pdf) page to single page and for this i have try a2ps command as:
a2ps -4 1.ps 2.ps 3.ps 4.ps -o outfile.ps
Event through it divide the page into four section. But only give one output of my four input. other three section is blank. Is i am doing some wrong or Is their any other command to do so.
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Aug 11, 2011
Vim: substitute for Page Up and Page Down keys?
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Aug 14, 2010
When I boot slackware, I have all the boot process that run but too fast. I don't have time to read what's running. Is there a way to to go page by page. I didn't find any key in my keyboard to stop and go.
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