by Roderick W. Smith, rodsmith@rodsbooks.com

See Full List On Github.com
Sip Alg Test Tool For Mac Os
Sip Alg Test Tool
SIP Test Tools For Packet Loss, Line Quality And Load Testing

IMPORTANT: This project is not maintained. It may work today (or not). SIP-ALG-Detector is an utility to detect routers with SIP ALG enabled. It comes with a client and a server. Sergey was responsible for VoIP troubleshooting, so he created a tool to generate SIP calls, the tool finally was marketed as SIP Tester (his first commercial product). Beyond the SIP Tester there are many other products, part of them published on the website. Sergey worked as freelancer at upwork (former odesk) in 2010.2014.

Originally written: 11/8/2015; last Web page update:3/13/2020, referencing rEFInd 0.12.0

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SIP Test Tools for Packet Loss, Line Quality and Load Testing

This page is part of the documentation for the rEFInd boot manager. If a Web search has brought you here, you may want to start at the main page.

Installing rEFInd with SIP Enabled
- Disabling SIP

Apple's macOS 10.11 (aka El Capitan) added a new feature, known as System Integrity Protection (SIP), aka 'rootless' mode. This feature causes some consternation for advanced users, because it restricts what you can do with your computer, even as root. This page is dedicated to this new feature, including basic information on why SIP exists, how to install rEFInd on a computer with SIP enabled, and how to use rEFInd to manage SIP. Note that if you've come here for help installing rEFInd on a Mac with SIP enabled, you can click to one of the methods in the 'Contents' box to the left of this paragraph. I recommend trying Recovery mode first; but if you have reason to try another method, you can do so.

What Is SIP?

To understand SIP, you should first know that Unix-like systems, including macOS, have traditionally provided a model of security in which ordinary users can read and write their own files (word processor documents, digital photos, etc.), but cannot write to system files (programs, system configuration files, etc.)—and users cannot even read some system files. This system security model has worked well for decades on traditional Unix systems, which have been administered by computer professionals and used by individuals with less experience. For administrative tasks, the root account is used. On Macs, this access is generally granted by the sudo command or by various GUI tools. Most Macs, in contrast to traditional Unix mainframes and minicomputers from the 20th century, are single-user computers that are administered by their users. Such people often lack the knowledge of the professional system administrators who have traditionally managed Unix systems; but they must still perform system administration tasks such as installing new software and configuring network settings. MacOS has always provided some measure of security by requiring users to enter their passwords before performing these dangerous tasks, and by providing GUI tools to help guide users through these tasks in a way that minimizes the risk of damage.

Apple has apparently decided that these safeguards are no longer sufficient, at least for certain tasks, such as writing files to certain system directories and installing boot loaders. I won't try to speak for Apple or explain their motivations, but the result of Apple's decisions is SIP. With SIP active, as is the default, macOS 10.11 and later limits your ability to perform some of these administrative tasks. You can still install and remove most third-party programs, configure your network, and so on; but some critical directories can no longer be written, even as root, and some utilities cannot be used in certain ways, even as root. These restrictions impact rEFInd because one of the affected tools, a command called bless, is required to tell the Mac to boot rEFInd rather than to boot macOS directly.

Installing rEFInd with SIP Enabled

The end result of SIP is that rEFInd cannot be installed under macOS 10.11 and later in the way described on the Installing rEFInd page—at least, not without first booting into Recovery mode, in which SIP restrictions are ignored; or disabling SIP (either temporarily or permanently). This page covers these two options in more detail, as well as a third: Using another OS to install rEFInd.

Using Recovery Mode

Unless you've deleted it, the Recovery HD partition should be present on your Mac as a way to perform emergency recovery operations. The nature of this tool means that SIP cannot be enabled when using it, so you can install rEFInd from a boot to this partition. The trouble is that this installation is not a full-fledged macOS system, so you may have trouble using it if you're not comfortable with such a bare-bones environment. Nonetheless, it is a good way to install rEFInd on a Mac that runs macOS 10.11 or later. To do so, follow these steps:

Download the rEFInd binary .zip file and unpack it. You can unpack it on your regular hard disk or on a USB flash drive. Pay attention to where it's located, though; you'll need to find it later. Pay attention to both the name of the volume and the complete path to the directory in which it's stored. (Your home directory is normally /Users/yourname, where yourname is your username. Your Desktop is normally /Users/yourname/Desktop.
Reboot the computer.
At the startup chime, hold down the Command+R key combination. The computer should launch into the Recovery system. This is a very bare system, with only a window providing a way to launch a handful of utilities and a menu bar. You must use the latter.
Select Utilities -> Terminal from the menu bar. A Terminal window should open.
If you unpacked rEFInd on a USB flash drive, insert it and wait for its access light (if it has one) to stop blinking.
Increase the size of the Terminal a bit. (This just makes its output more legible, since the next step produces long lines.)
Type df -h in the Terminal. This produces a list of partitions that are mounted. Locate the one on which you unpacked the rEFInd files. It will normally be /Volumes/Somename, where Somename is the volume's name.
In the Terminal, use cd to change to the directory where the rEFInd files you unpacked earlier are stored. For instance, on my MacBook, I would type cd /Volumes/Macintosh HD/Users/rodsmith/Desktop/refind-0.11.5. Note that if any element of this path includes a space, you must either enclose the entire path in quotes or precede the space with a backslash (), as in this example's Macintosh HD volume name.
Type ls to verify that refind-install is present in this directory.
Type ./refind-install to run the installation script. It should run normally, as described on the Installing rEFInd page. You can add options, if you like, as described on that page. Alternatively, you can perform a manual installation, also as described on that page.
Reboot.

At this point, rEFInd should come up and enable you to boot into macOS and any other OS(es) that are already installed. You should not need to perform these steps again unless macOS re-installs its own boot loader or a subsequent OS installation overrides the default boot option. You can install an updated rEFInd from within your regular macOS system and it should install correctly, provided you're installing it to the EFI System Partition (ESP). The refind-install script may complain about a failure, but because you're overwriting one rEFInd binary with another one, it should continue to boot. (If you installed rEFInd to an HFS+ partition, though, replacing the original file will require using bless to tell the firmware about the change, so updating such an installation probably won't work wit

Sip Alg Test Tool For Mac